Enchanting images with Inky Lines, a Pi‑powered polargraph

Post Syndicated from Helen Lynn original https://www.raspberrypi.org/blog/enchanting-images-inky-lines-pi-powered-polargraph/

A hanging plotter, also known as a polar plotter or polargraph, is a machine for drawing images on a vertical surface. It does so by using motors to control the length of two cords that form a V shape, supporting a pen where they meet. We’ve featured one on this blog before: Norbert “HomoFaciens” Heinz’s video is a wonderfully clear introduction to how a polargraph works and what you have to consider when you’re putting one together.

Today, we look at Inky Lines, by John Proudlock. With it, John is creating a series of captivating and beautiful pieces, and with his most recent work, each rendering of an image is unique.

An evolving project

The project isn’t new – John has been working on it for at least a couple of years – but it is constantly evolving. When we first spotted it, John had just implemented code to allow the plotter to produce mesmeric, spiralling patterns.

But we’re skipping ahead. Let’s go back to the beginning.

From pixels to motor movements

John starts by providing an image, usually no more than 100 pixels wide, to a Raspberry Pi. Custom software that he wrote evaluates the darkness of each pixel and selects a pattern of a suitable density to represent it.

The two cords supporting the plotter’s pen are wound around the shafts of two stepper motors, such that the movement of the motors controls the length of the cords: the program next calculates how much each motor must move in order to produce the pattern. The Raspberry Pi passes corresponding instructions to two motor circuits, which transform the signals to a higher voltage and pass them to the stepper motors. These turn by very precise amounts, winding or unwinding the cords and, very slowly, dragging the pen across the paper.

John explains,

Suspended in-between the two motors is a print head, made out of a new 3-d modelling material I’ve been prototyping called cardboard. An old coat hanger and some velcro were also used.

(He’s our kind of maker.)

Unique images

The earlier drawings that John made used a repeatable method to render image files as lines on paper. That is, if the machine drew the same image a number of times, each copy would be identical. More recently, though, he has been using a method that yields random movements of the pen:

The pen point is guided around the image, but moves to each new point entirely at random. Up close this looks like a chaotic squiggle, but from a distance of a couple of meters, the human eye (and brain) make order from the chaos and view an infinite number of shades and a smoother, less mechanical image.

This method means that no matter how many times the polargraph repeats the same image, each copy will be unique.

A gallery of work

Inky Lines’ website and its Instagram feed offer a collection of wonderful pieces John has drawn with his polargraph, and he discusses the different techniques and types of image that he is exploring.

They range from holiday photographs, processed to extract particular features and rendered in silhouette, to portraits, made with a single continuous line that can be several hundred metres long, to generative images spirograph images like those pictured above, created by an algorithm rather than rendered from a source image.

The post Enchanting images with Inky Lines, a Pi‑powered polargraph appeared first on Raspberry Pi.

TSB Bank Disaster

Post Syndicated from Bruce Schneier original https://www.schneier.com/blog/archives/2018/04/tsb_bank_disast.html

This seems like an absolute disaster:

The very short version is that a UK bank, TSB, which had been merged into and then many years later was spun out of Lloyds Bank, was bought by the Spanish bank Banco Sabadell in 2015. Lloyds had continued to run the TSB systems and was to transfer them over to Sabadell over the weekend. It’s turned out to be an epic failure, and it’s not clear if and when this can be straightened out.

It is bad enough that bank IT problem had been so severe and protracted a major newspaper, The Guardian, created a live blog for it that has now been running for two days.

The more serious issue is the fact that customers still can’t access online accounts and even more disconcerting, are sometimes being allowed into other people’s accounts, says there are massive problems with data integrity. That’s a nightmare to sort out.

Even worse, the fact that this situation has persisted strongly suggests that Lloyds went ahead with the migration without allowing for a rollback.

This seems to be a mistake, and not enemy action.

Schaller: Warming up for Fedora Workstation 28

Post Syndicated from corbet original https://lwn.net/Articles/752901/rss

Christian Schaller looks
forward to the Fedora 28 release
(which will evidently be the first on-time Fedora release ever).
The Spectre/Meltdown situation did hammer home to a lot of people
the need to have firmware updates easily available and easy to update. We
created the Linux Vendor Firmware service for Fedora Workstation users with
that in mind and it was great to see the service paying off for many Linux
users, not only on Fedora, but also on other distributions who started
using the service we provided. I would like to call out to Dell who was a
critical partner for the Linux Vendor Firmware effort from day 1 and thus
their users got the most benefit from it when Spectre and Meltdown
hit. Spectre and Meltdown also helped get a lot of other vendors off the
fence or to accelerate their efforts to support LVFS and Richard Hughes and
Peter Jones have been working closely with a lot of new vendors during this
cycle to get support for their hardware and devices into LVFS.

All-In on Unlimited Backup

Post Syndicated from Gleb Budman original https://www.backblaze.com/blog/all-in-on-unlimited-backup/

The cloud backup industry has seen its share of tumultuousness. BitCasa, Dell DataSafe, Xdrive, and a dozen others have closed up shop. Mozy, Amazon, and Microsoft offered, but later canceled, their unlimited offerings. Recently, CrashPlan for Home customers were notified that their service was being end-of-lifed. Then today we’ve heard from Carbonite customers who are frustrated by this morning’s announcement of a price increase from Carbonite.

We believe that the fundamental goal of a cloud backup is having peace-of-mind: knowing your data — all of it — is safe. For over 10 years Backblaze has been providing that peace-of-mind by offering completely unlimited cloud backup to our customers. And we continue to be committed to that. Knowing that your cloud backup vendor is not going to disappear or fundamentally change their service is an essential element in achieving that peace-of-mind.

Committed to Unlimited Backup

When Mozy discontinued their unlimited backup on Jan 31, 2011, a lot of people asked, “Does this mean Backblaze will discontinue theirs as well?” At that time I wrote the blog post Backblaze is committed to unlimited backup. That was seven years ago. Since then we’ve continued to make Backblaze cloud backup better: dramatically speeding up backups and restores, offering the unique and very popular Restore Return Refund program, enabling direct access and sharing of any file in your backup, and more. We also introduced Backblaze Groups to enable businesses and families to manage backups — all at no additional cost.

How That’s Possible

I’d like to answer the question of “How have you been able to do this when others haven’t?

First, commitment. It’s not impossible to offer unlimited cloud backup, but it’s not easy. The Backblaze team has been committed to unlimited as a core tenet.

Second, we have pursued the technical, business, and cultural steps required to make it happen. We’ve designed our own servers, written our cloud storage software, run our own operations, and been continually focused on every place we could optimize a penny out of the cost of storage. We’ve built a culture at Backblaze that cares deeply about that.

Ensuring Peace-of-Mind

Price increases and plan changes happen in our industry, but Backblaze has consistently been the low price leader, and continues to stand by the foundational element of our service — truly unlimited backup storage. Carbonite just announced a price increase from \$60 to \$72/year, and while that’s not an astronomical increase, it’s important to keep in mind the service that they are providing at that rate. The basic Carbonite plan provides a service that doesn’t back up videos or external hard drives by default. We think that’s dangerous. No one wants to discover that their videos weren’t backed up after their computer dies, or have to worry about the safety and durability of their data. That is why we have continued to build on our foundation of unlimited, as well as making our service faster and more accessible. All of these serve the goal of ensuring peace-of-mind for our customers.

3 Months Free For You & A Friend

As part of our commitment to unlimited, refer your friends to receive three months of Backblaze service through March 15, 2018. When you Refer-a-Friend with your personal referral link, and they subscribe, both of you will receive three months of service added to your account. See promotion details on our Refer-a-Friend page.

Want A Reminder When Your Carbonite Subscription Runs Out?

If you’re considering switching from Carbonite, we’d love to be your new backup provider. Enter your email and the date you’d like to be reminded in the form below and you’ll get a friendly reminder email from us to start a new backup plan with Backblaze. Or, you could start a free trial today.

We think you’ll be glad you switched, and you’ll have a chance to experience some of that Backblaze peace-of-mind for your data.

Please Send Me a Reminder When I Need a New Backup Provider

The post All-In on Unlimited Backup appeared first on Backblaze Blog | Cloud Storage & Cloud Backup.

Eevee gained 2791 experience points

Post Syndicated from Eevee original https://eev.ee/blog/2018/01/15/eevee-gained-2791-experience-points/

Eevee grew to level 31!

A year strongly defined by mixed success! Also, a lot of video games.

I ran three game jams, resulting in a total of 157 games existing that may not have otherwise, which is totally mindblowing?!

For GAMES MADE QUICK???, glip and I made NEON PHASE, a short little exploratory platformer. Honestly, I should give myself more credit for this and the rest of the LÖVE games I’ve based on the same codebase — I wove a physics engine (and everything else!) from scratch and it has held up remarkably well for a variety of different uses.

I successfully finished an HD version of Isaac’s Descent using my LÖVE engine, though it doesn’t have anything new over the original and I’ve only released it as a tech demo on Patreon.

For Strawberry Jam (NSFW!) we made fox flux (slightly NSFW!), which felt like a huge milestone: the first game where I made all the art! I mean, not counting Isaac’s Descent, which was for a very limited platform. It’s a pretty arbitrary milestone, yes, but it feels significant. I’ve been working on expanding the game into a longer and slightly less buggy experience, but the art is taking the longest by far. I must’ve spent weeks on player sprites alone.

We then set about working on Bolthaven, a sequel of sorts to NEON PHASE, and got decently far, and then abandond it. Oops.

We then started a cute little PICO-8 game, and forgot about it. Oops.

I was recruited to help with Chaos Composer, a more ambitious game glip started with someone else in Unity. I had to get used to Unity, and we squabbled a bit, but the game is finally about at the point where it’s “playable” and “maps” can be designed? It’s slightly on hold at the moment while we all finish up some other stuff, though.

We made a birthday game for two of our friends whose birthdays were very close together! Only they got to see it.

For Ludum Dare 38, we made Lunar Depot 38, a little “wave shooter” or whatever you call those? The AI is pretty rough, seeing as this was the first time I’d really made enemies and I had 72 hours to figure out how to do it, but I still think it’s pretty fun to play and I love the circular world.

I made Roguelike Simulator as an experiment with making something small and quick with a simple tool, and I had a lot of fun! I definitely want to do more stuff like this in the future.

And now we’re working on a game about Star Anise, my cat’s self-insert, which is looking to have more polish and depth than anything we’ve done so far! We’ve definitely come a long way in a year.

Somewhere along the line, I put out a call for a “potluck” project, where everyone would give me sprites of a given size without knowing what anyone else had contributed, and I would then make a game using only those sprites. Unfortunately, that stalled a few times: I tried using the Phaser JS library, but we didn’t get along; I tried LÖVE, but didn’t know where to go with the game; and then I decided to use this as an experiment with procedural generation, and didn’t get around to it. I still feel bad that everyone did work for me and I didn’t follow through, but I don’t know whether this will ever become a game.

veekun, alas, consumed months of my life. I finally got Sun and Moon loaded, but it took weeks of work since I was basically reinventing all the tooling we’d ever had from scratch, without even having most of that tooling available as a reference. It was worth it in the end, at least: Ultra Sun and Ultra Moon only took a few days to get loaded. But veekun itself is still missing some obvious Sun/Moon features, and the whole site needs an overhaul, and I just don’t know if I want to dedicate that much time to it when I have so much other stuff going on that’s much more interesting to me right now.

I finally turned my blog into more of a website, giving it a neat front page that lists a bunch of stuff I’ve done. I made a release category at last, though I’m still not quite in the habit of using it.

I wrote some blog posts, of course! I think the most interesting were JavaScript got better while I wasn’t looking and Object models. I was also asked to write a couple pieces for money for a column that then promptly shut down.

On a whim, I made a set of Eevee mugshots for Doom, which I think is a decent indication of my (pixel) art progress over the year?

I started idchoppers, a Doom parsing and manipulation library written in Rust, though it didn’t get very far and I’ve spent most of the time fighting with Rust because it won’t let me implement all my extremely bad ideas. It can do a couple things, at least, like flip maps very quickly and render maps to SVG.

I did toy around with music a little, but not a lot.

I wrote two short twines for Flora. They’re okay. I’m working on another; I think it’ll be better.

I didn’t do a lot of art overall, at least compared to the two previous years; most of my art effort over the year has gone into fox flux, which requires me to learn a whole lot of things. I did dip my toes into 3D modelling, most notably producing my current Twitter banner as well as this cool Star Anise animation. I wouldn’t mind doing more of that; maybe I’ll even try to make a low-poly pixel-textured 3D game sometime.

I restarted my book with a much better concept, though so far I’ve only written about half a chapter. Argh. I see that the vast majority of the work was done within the span of a single week, which is bad since that means I only worked on it for a week, but good since that means I can actually do a pretty good amount of work in only a week. I also did a lot of squabbling with tooling, which is hopefully mostly out of the way now.

My computer broke? That was an exciting week.

A lot of stuff, but the year as a whole still feels hit or miss. All the time I spent on veekun feels like a black void in the middle of the year, which seems like a good sign that I maybe don’t want to pour even more weeks into it in the near future.

Mostly, I want to do: more games, more art, more writing, more music.

I want to try out some tiny game making tools and make some tiny games with them — partly to get exposure to different things, partly to get more little ideas out into the world regularly, and partly to get more practice at letting myself have ideas. I have a couple tools in mind and I guess I’ll aim at a microgame every two months or so? I’d also like to finish the expanded fox flux by the end of the year, of course, though at the moment I can’t even gauge how long it might take.

I seriously lapsed on drawing last year, largely because fox flux pixel art took me so much time. So I want to draw more, and I want to get much faster at pixel art. It would probably help if I had a more concrete goal for drawing, so I might try to draw some short comics and write a little visual novel or something, which would also force me to aim for consistency.

I want to work on my book more, of course, but I also want to try my hand at a bit more fiction. I’ve had a blast writing dialogue for our games! I just shy away from longer-form writing for some reason — which seems ridiculous when a large part of my audience found me through my blog. I do think I’ve had some sort of breakthrough in the last month or two; I suddenly feel a good bit more confident about writing in general and figuring out what I want to say? One recent post I know I wrote in a single afternoon, which virtually never happens because I keep rewriting and rearranging stuff. Again, a visual novel would be a good excuse to practice writing fiction without getting too bogged down in details.

And, ah, music. I shy heavily away from music, since I have no idea what I’m doing, and also I seem to spend a lot of time fighting with tools. (Surprise.) I tried out SunVox for the first time just a few days ago and have been enjoying it quite a bit for making sound effects, so I might try it for music as well. And once again, visual novel background music is a pretty low-pressure thing to compose for. Hell, visual novels are small games, too, so that checks all the boxes. I guess I’ll go make a visual novel.

Here’s to twenty gayteen!

Weekly roundup: Invinco Beat

Post Syndicated from Eevee original https://eev.ee/dev/2017/12/18/weekly-roundup-invinco-beat/

I’ve been a bit all over the place! And I’m starting to go nocturnal again, oh no.

• art: I started drawing a header image for my itch.io page, which for a year now has been barren, save for a promise that I would soon make it unbarren.

I accidentally spent a good chunk of time toodling around with 3D modelling again, this time trying to aim for low-poly with pixel art textures. I tried a couple things, but the biggest success by far was Star Anise.

• anise!!: Still not done, but asymptotically approaching done. Most of the time has been going towards the map, which has been rearchitectued several times, and which is bigger and more complicated than anything we’ve done before. Also did some regular old mechanical stuff, like doors and whatnot.

• misc: I had MegaZeux on the brain and wanted to try out the Web Audio API, so on a total whim I wrote a little player for MegaZeux’s SFX strings.

How to Compete with Giants

Post Syndicated from Gleb Budman original https://www.backblaze.com/blog/how-to-compete-with-giants/

This post by Backblaze’s CEO and co-founder Gleb Budman is the sixth in a series about entrepreneurship. You can choose posts in the series from the list below:

Use the Join button above to receive notification of new posts in this series.

Perhaps your business is competing in a brand new space free from established competitors. Most of us, though, start companies that compete with existing offerings from large, established companies. You need to come up with a better mousetrap — not the first mousetrap.

That’s the challenge Backblaze faced. In this post, I’d like to share some of the lessons I learned from that experience.

Backblaze vs. Giants

Competing with established companies that are orders of magnitude larger can be daunting. How can you succeed?

I’ll set the stage by offering a few sets of giants we compete with:

• When we started Backblaze, we offered online backup in a market where companies had been offering “online backup” for at least a decade, and even the newer entrants had raised tens of millions of dollars.
• When we built our storage servers, the alternatives were EMC, NetApp, and Dell — each of which had a market cap of over \$10 billion.
• When we introduced our cloud storage offering, B2, our direct competitors were Amazon, Google, and Microsoft. You might have heard of them.

What did we learn by competing with these giants on a bootstrapped budget? Let’s take a look.

Determine What Success Means

For a long time Apple considered Apple TV to be a hobby, not a real product worth focusing on, because it did not generate a billion in revenue. For a \$10 billion per year revenue company, a new business that generates \$50 million won’t move the needle and often isn’t worth putting focus on. However, for a startup, getting to \$50 million in revenue can be the start of a wildly successful business.

Lesson Learned: Don’t let the giants set your success metrics.

The giants have a lot of advantages: more money, people, scale, resources, access, etc. Following their playbook and attacking head-on means you’re simply outgunned. Common paths to failure are trying to build more features, enter more markets, outspend on marketing, and other similar approaches where scale and resources are the primary determinants of success.

But being a startup affords many advantages most giants would salivate over. As a nimble startup you can leverage those to succeed. Let’s breakdown nine competitive advantages we’ve used that you can too.

1. Drive Focus

It’s hard to build a \$10 billion revenue business doing just one thing, and most giants have a broad portfolio of businesses, numerous products for each, and targeting a variety of customer segments in multiple markets. That adds complexity and distributes management attention.

Startups get the benefit of having everyone in the company be extremely focused, often on a singular mission, product, customer segment, and market. While our competitors sell everything from advertising to Zantac, and are investing in groceries and shipping, Backblaze has focused exclusively on cloud storage. This means all of our best people (i.e. everyone) is focused on our cloud storage business. Where is all of your focus going?

Lesson Learned: Align everyone in your company to a singular focus to dramatically out-perform larger teams.

2. Use Lack-of-Scale as an Advantage

You may have heard Paul Graham say “Do things that don’t scale.” There are a host of things you can do specifically because you don’t have the same scale as the giants. Use that as an advantage.

When we look for data center space, we have more options than our largest competitors because there are simply more spaces available with room for 100 cabinets than for 1,000 cabinets. With some searching, we can find data center space that is better/cheaper.

When a flood in Thailand destroyed factories, causing the world’s supply of hard drives to plummet and prices to triple, we started drive farming. The giants certainly couldn’t. It was a bit crazy, but it let us keep prices unchanged for our customers.

Our Chief Cloud Officer, Tim, used to work at Adobe. Because of their size, any new product needed to always launch in a multitude of languages and in global markets. Once launched, they had scale. But getting any new product launched was incredibly challenging.

Lesson Learned: Use lack-of-scale to exploit opportunities that are closed to giants.

3. Build a Better Product

This one is probably obvious. If you’re going to provide the same product, at the same price, to the same customers — why do it? Remember that better does not always mean more features. Here’s one way we built a better product that didn’t require being a bigger company.

All online backup services required customers to choose what to include in their backup. We found that this was complicated for users since they often didn’t know what needed to be backed up. We flipped the model to back up everything and allow users to exclude if they wanted to, but it was not required. This reduced the number of features/options, while making it easier and better for the user.

This didn’t require the resources of a huge company; it just required understanding customers a bit deeper and thinking about the solution differently. Building a better product is the most classic startup competitive advantage.

Lesson Learned: Dig deep with your customers to understand and deliver a better mousetrap.

4. Provide Better Service

A strategic decision we made was to have all customer support people as full-time employees in our headquarters. This ensures they are in close contact to the whole company for feedback to quickly go both ways.

Having a smaller team and fewer layers enables faster internal communication, which increases customer happiness. And the option to do things that don’t scale — such as help a customer in a unique situation — can go a long way in building customer loyalty.

Lesson Learned: Service your customers better by establishing clear internal communications.

5. Remove The Unnecessary

After determining that the industry standard EMC/NetApp/Dell storage servers would be too expensive to build our own cloud storage upon, we decided to build our own infrastructure. Many said we were crazy to compete with these multi-billion dollar companies and that it would be impossible to build a lower cost storage server. However, not only did it prove to not be impossible — it wasn’t even that hard.

One key trick? Remove the unnecessary. While EMC and others built servers to sell to other companies for a wide variety of use cases, Backblaze needed servers that only Backblaze would run, and for a single use case. As a result we could tailor the servers for our needs by removing redundancy from each server (since we would run redundant servers), and using lower-performance components (since we would get high-performance by running parallel servers).

What do your customers and use cases not need? This can trim costs and complexity while often improving the product for your use case.

Lesson Learned: Don’t think “what can we add” to what the giants offer — think “what can we remove.”

6. Be Easy

How many times have you visited a large company website, particularly one that’s not consumer-focused, only to leave saying, “Huh? I don’t understand what you do.” Keeping your website clear, and your product and pricing simple, will dramatically increase conversion and customer satisfaction. If you’re able to make it 2x easier and thus increasing your conversion by 2x, you’ve just allowed yourself to spend ½ as much acquiring a customer.

Providing unlimited data backup wasn’t specifically about providing more storage — it was about making it easier. Since users didn’t know how much data they needed to back up, charging per gigabyte meant they wouldn’t know the cost. Providing unlimited data backup meant they could just relax.

Customers love easy — and being smaller makes easy easier to deliver. Use that as an advantage in your website, marketing materials, pricing, product, and in every other customer interaction.

Lesson Learned: Ease-of-use isn’t a slogan: it’s a competitive advantage. Treat it as seriously as any other feature of your product

7. Don’t Be Afraid of Risk

Obviously unnecessary risks are unnecessary, and some risks aren’t worth taking. However, large companies that have given guidance to Wall Street with a \$0.01 range on their earning-per-share are inherently going to be very risk-averse. Use risk-tolerance to open up opportunities, and adjust your tolerance level as you scale. In your first year, there are likely an infinite number of ways your business may vaporize; don’t be too worried about taking a risk that might have a 20% downside when the upside is hockey stick growth.

Using consumer-grade hard drives in our servers may have caused pain and suffering for us years down-the-line, but they were priced at approximately 50% of enterprise drives. Giants wouldn’t have considered the option. Turns out, the consumer drives performed great for us.

Lesson Learned: Use calculated risks as an advantage.

8. Be Open

The larger a company grows, the more it wants to hide information. Some of this is driven by regulatory requirements as a public company. But most of this is cultural. Sharing something might cause a problem, so let’s not. All external communication is treated as a critical press release, with rounds and rounds of editing by multiple teams and approvals. However, customers are often desperate for information. Moreover, sharing information builds trust, understanding, and advocates.

I started blogging at Backblaze before we launched. When we blogged about our Storage Pod and open-sourced the design, many thought we were crazy to share this information. But it was transformative for us, establishing Backblaze as a tech thought leader in storage and giving people a sense of how we were able to provide our service at such a low cost.

Over the years we’ve developed a culture of being open internally and externally, on our blog and with the press, and in communities such as Hacker News and Reddit. Often we’ve been asked, “why would you share that!?” — but it’s the continual openness that builds trust. And that culture of openness is incredibly challenging for the giants.

Lesson Learned: Overshare to build trust and brand where giants won’t.

9. Be Human

As companies scale, typically a smaller percent of founders and executives interact with customers. The people who build the company become more hidden, the language feels “corporate,” and customers start to feel they’re interacting with the cliche “faceless, nameless corporation.” Use your humanity to your advantage. From day one the Backblaze About page listed all the founders, and my email address. While contacting us shouldn’t be the first path for a customer support question, I wanted it to be clear that we stand behind the service we offer; if we’re doing something wrong — I want to know it.

To scale it’s important to have processes and procedures, but sometimes a situation falls outside of a well-established process. While we want our employees to follow processes, they’re still encouraged to be human and “try to do the right thing.” How to you strike this balance? Simon Sinek gives a good talk about it: make your employees feel safe. If employees feel safe they’ll be human.

If your customer is a consumer, they’ll appreciate being treated as a human. Even if your customer is a corporation, the purchasing decision-makers are still people.

Lesson Learned: Being human is the ultimate antithesis to the faceless corporation.

Presumably the goal is not to always be competing with giants, but to one day become a giant. Does this mean you’ll lose all of these advantages? Some, yes — but not all. Some of these advantages are cultural, and if you build these into the culture from the beginning, and fight to keep them as you scale, you can keep them as you become a giant.

Tesla still comes across as human, with Elon Musk frequently interacting with people on Twitter. Apple continues to provide great service through their Genius Bar. And, worst case, if you lose these at scale, you’ll still have the other advantages of being a giant such as money, people, scale, resources, and access.

Of course, some new startup will be gunning for you with grand ambitions, so just be sure not to get complacent. 😉

The post How to Compete with Giants appeared first on Backblaze Blog | Cloud Storage & Cloud Backup.

AWS Partner Webinar Series – August 2017

Post Syndicated from Ana Visneski original https://aws.amazon.com/blogs/aws/aws-partner-webinar-series-august-2017/

We love bringing our customers helpful information and we have another cool series we are excited to tell you about. The AWS Partner Webinar Series is a selection of live and recorded presentations covering a broad range of topics at varying technical levels and scale. A little different from our AWS Online TechTalks, each AWS Partner Webinar is hosted by an AWS solutions architect and an AWS Competency Partner who has successfully helped customers evaluate and implement the tools, techniques, and technologies of AWS.

Check out this month’s webinars and let us know which ones you found the most helpful! All schedule times are shown in the Pacific Time (PDT) time zone.

Security Webinars

Sophos
Seeing More Clearly: ATLO Software Secures Online Training Solutions for Correctional Facilities with SophosUTM on AWS Link.
August 17th, 2017 | 10:00 AM PDT

F5
F5 on AWS: How MailControl Improved their Application Visibility and Security
August 23, 2017 | 10:00 AM PDT

Big Data Webinars

Tableau, Matillion, 47Lining, NorthBay
Unlock Insights and Reduce Costs by Modernizing Your Data Warehouse on AWS
August 22, 2017 | 10:00 AM PDT

Storage Webinars

StorReduce
How Globe Telecom does Primary Backups via StorReduce to the AWS Cloud
August 29, 2017 | 8:00 AM PDT

Commvault
Moving Forward Faster: How Monash University Automated Data Movement for 3500 Virtual Machines to AWS with Commvault
August 29, 2017 | 1:00 PM PDT

Dell EMC
Moving Forward Faster: Protect Your Workloads on AWS With Increased Scale and Performance
August 30, 2017 | 11:00 AM PDT

Druva
How Hatco Protects Against Ransomware with Druva on AWS
September 13, 2017 | 10:00 AM PDT

Burner laptops for DEF CON

Post Syndicated from Robert Graham original http://blog.erratasec.com/2017/07/burner-laptops-for-def-con.html

Hacker summer camp (Defcon, Blackhat, BSidesLV) is upon us, so I thought I’d write up some quick notes about bringing a “burner” laptop. Chrome is your best choice in terms of security, but I need Windows/Linux tools, so I got a Windows laptop.

I chose the Asus e200ha for \$199 from Amazon with free (and fast) shipping. There are similar notebooks with roughly the same hardware and price from other manufacturers (HP, Dell, etc.), so I’m not sure how this compares against those other ones. However, it fits my needs as a “burner” laptop, namely:

• cheap
• lasts 10 hours easily on battery
• weighs 2.2 pounds (1 kilogram)
• 11.6 inch and thin

Some other specs are:

• 4 gigs of RAM
• 32 gigs of eMMC flash memory
• quad core 1.44 GHz Intel Atom CPU
• Windows 10
• free Microsoft Office 365 for one year
• good, large keyboard
• USB 3.0
• microSD
• WiFi ac
• no fans, completely silent

There are compromises, of course.

• The Atom CPU is slow, thought it’s only noticeable when churning through heavy webpages. Adblocking addons or Brave are a necessity. Most things are usably fast, such as using Microsoft Word.
• Crappy sound and video, though VLC does a fine job playing movies with headphones on the airplane. Using in bright sunlight will be difficult.
• micro-HDMI, keep in mind if intending to do presos from it, you’ll need an HDMI adapter
• It has limited storage, 32gigs in theory, about half that usable.
• Does special Windows 10 compressed install that you can’t actually upgrade without a completely new install. It doesn’t have the latest Windows 10 Creators update. I lost a gig thinking I could compress system files.

Copying files across the 802.11ac WiFi to the disk was quite fast, several hundred megabits-per-second. The eMMC isn’t as fast as an SSD, but its a lot faster than typical SD card speeds.

The first thing I did once I got the notebook was to install the free VeraCrypt full disk encryption. The CPU has AES acceleration, so it’s fast. There is a problem with the keyboard driver during boot that makes it really hard to enter long passwords — you have to carefully type one key at a time to prevent extra keystrokes from being entered.

You can’t really install Linux on this computer, but you can use virtual machines. I installed VirtualBox and downloaded the Kali VM. I had some problems attaching USB devices to the VM. First of all, VirtualBox requires a separate downloaded extension to get USB working. Second, it conflicts with USBpcap that I installed for Wireshark.

It comes with one year of free Office 365. Obviously, Microsoft is hoping to hook the user into a longer term commitment, but in practice next year at this time I’d get another burner \$200 laptop rather than spend \$99 on extending the Office 365 license.

Let’s talk about the CPU. It’s Intel’s “Atom” processor, not their mainstream (Core i3 etc.) processor. Even though it has roughly the same GHz as the processor in a 11inch MacBook Air and twice the cores, it’s noticeably and painfully slower. This is especially noticeable on ad-heavy web pages, while other things seem to work just fine. It has hardware acceleration for most video formats, though I had trouble getting Netflix to work.

The tradeoff for a slow CPU is phenomenal battery life. It seems to last forever on battery. It’s really pretty cool.

Conclusion

A Chromebook is likely more secure, but for my needs, this \$200 is perfect.

Pi-powered hands-on statistical model at the Royal Society

Post Syndicated from Janina Ander original https://www.raspberrypi.org/blog/royal-society-galton-board/

Physics! Particles! Statistical modelling! Quantum theory! How can non-scientists understand any of it? Well, students from Durham University are here to help you wrap your head around it all – and to our delight, they’re using the power of the Raspberry Pi to do it!

At the Royal Society’s Summer Science Exhibition, taking place in London from 4-9 July, the students are presenting a Pi-based experiment demonstrating the importance of statistics in their field of research.

Modelling the invisible – Summer Science Exhibition 2017

The Royal Society Summer Science Exhibition 2017 features 22 exhibits of cutting-edge, hands-on UK science , along with special events and talks. You can meet the scientists behind the research. Find out more about the exhibition at our website: https://royalsociety.org/science-events-and-lectures/2017/summer-science-exhibition/

Ramona, Matthew, and their colleagues are particle physicists keen to bring their science to those of us whose heads start to hurt as soon as we hear the word ‘subatomic’. In their work, they create computer models of subatomic particles to make predictions about real-world particles. Their models help scientists to design better experiments and to improve sensor calibrations. If this doesn’t sound straightforward to you, never fear – this group of scientists has set out to show exactly how statistical models are useful.

The Galton board model

They’ve built a Pi-powered Galton board, also called a bean machine (much less intimidating, I think). This is an upright board, shaped like an upside-down funnel, with nails hammered into it. Drop a ball in at the top, and it will randomly bounce off the nails on its way down. How the nails are spread out determines where a ball is most likely to land at the bottom of the board.

If you’re having trouble picturing this, you can try out an online Galton board. Go ahead, I’ll wait.

You’re back? All clear? Great!

Now, if you drop 100 balls down the board and collect them at the bottom, the result might look something like this:

By Antoine Taveneaux CC BY-SA 3.0

The distribution of the balls is determined by the locations of the nails in the board. This means that, if you don’t know where the nails are, you can look at the distribution of balls to figure out where they are most likely to be located. And you’ll be able to do all this using … statistics!!!

Statistical models

Similarly, how particles behave is determined by the laws of physics – think of the particles as balls, and laws of physics as nails. Physicists can observe the behaviour of particles to learn about laws of physics, and create statistical models simulating the laws of physics to predict the behaviour of particles.

I can hear you say, “Alright, thanks for the info, but how does the Raspberry Pi come into this?” Don’t worry – I’m getting to that.

Modelling the invisible – the interactive exhibit

As I said, Ramona and the other physicists have not created a regular old Galton board. Instead, this one records where the balls land using a Raspberry Pi, and other portable Pis around the exhibition space can access the records of the experimental results. These Pis in turn run Galton board simulators, and visitors can use them to recreate a virtual Galton board that produces the same results as the physical one. Then, they can check whether their model board does, in fact, look like the one the physicists built. In this way, people directly experience the relationship between statistical models and experimental results.

Hurrah for science!

The other exhibit the Durham students will be showing is a demo dark matter detector! So if you decide to visit the Summer Science Exhibition, you will also have the chance to learn about the very boundaries of human understanding of the cosmos.

The Pi in museums

At the Raspberry Pi Foundation, education is our mission, and of course we love museums. It is always a pleasure to see our computers incorporated into exhibits: the Pi-powered visual theremin teaches visitors about music; the Museum in a Box uses Pis to engage people in hands-on encounters with exhibits; and this Pi is itself a museum piece! If you want to learn more about Raspberry Pis and museums, you can listen to this interview with Pi Towers’ social media maestro Alex Bate.

It’s amazing that our tech is used to educate people in areas beyond computer science. If you’ve created a pi-powered educational project, please share it with us in the comments.

The post Pi-powered hands-on statistical model at the Royal Society appeared first on Raspberry Pi.

The Code Club International movement

Post Syndicated from Katherine Leadbetter original https://www.raspberrypi.org/blog/code-club-international/

Over the past few years, Code Club has made strides toward world domination! There are now more than 10,000 Code Clubs running in 125 countries. More than 140,000 kids have taken part in our clubs in places as diverse as the northernmost tip of Canada and the favelas of Rio de Janeiro.

In the first video from our Code Club International network, we find out about Code Clubs around the world from the people supporting these communities.

Global communities

Code Club currently has official local partners in twelve countries. Our passionate and motivated partner organisations are responsible for championing their countries’ Code Clubs. In March we brought the partners together for the first time, and they shared what it means to be part of the Code Club community:

You can help Code Club make a difference around the world

We invited our international Code Club partners to join us in London and discuss why we think Code Club is so special. Whether you’re a seasoned pro, a budding educator, or simply want to give back to your local community, there’s a place for you among our incredible Code Club volunteers.

Of course, Code Clubs aren’t restricted to countries with official partner communities – they can be started anywhere in the world! Code Clubs are up and running in a number of unexpected places, from Kosovo to Kazakhstan.

Code Club partners gathered together at the International Meetup

The geographical spread of Code Clubs means we hear of clubs overcoming a range of different challenges. One club in Zambia, run by volunteer Mwiza Simbeye, started as a way to get kids off the streets of Lusaka and teach them useful skills. Many children attending had hardly used a computer before writing their first line of code at the club. And it’s making a difference! As Mwiza told us, ‘you only need to see the light shine in the eyes of [Code Club] participants to see how much they enjoy these sessions.’

Student Joyce codes in Scratch at her Code Club in Nunavut, Canada

In the Nunavut region of Canada, Talia Metuq was first introduced to coding at a Code Club. In an area comprised of 25 Inuit communities that are inaccessible via roads and currently combating severe social and economic deprivation, computer science was not on the school timetable. Code Club, along with club volunteer Ryan Oliver, is starting to change that. After graduating from Code Club, Talia went on to study 3D modelling in Vancouver. She has now returned to Nunavut and is helping inspire more children to pursue digital making.

Start a Code Club

Code Clubs are volunteer-led extra-curricular coding clubs for children age 9 to 13. Children that attend learn to code games, animations, and websites using the projects we provide. Working with volunteers and with other children in their club, they grow their digital skillset.

You can run a Code Club anywhere if you have a venue, volunteers, and kids ready to learn coding. Help us achieve our goal of having a Code Club in every community in the world!

To find out how to start a Code Club outside of the UK, you can visit the Code Club International website. If you are in the UK, head to the Code Club UK website for more information.

Help the Code Club International community grow

On the Code Club site, we currently have projects in 28 languages, allowing more young people than ever to learn programming in their native language. But that’s not enough! We are always on the lookout for volunteers to translate projects and resources. If you are proficient in translating from English and would like to help, please visit the website to find out more.

We are also looking for official local partners in Italy and Germany to join our international network – if you know of, or are a part of an enthusiastic non-profit organisation who might be interested to join us, you can learn more here.

The post The Code Club International movement appeared first on Raspberry Pi.

Weekly roundup: Potpourri

Post Syndicated from Eevee original https://eev.ee/dev/2017/06/12/weekly-roundup-potpourri/

• potluck: It’s about time I actually started on this! I spent a couple days squabbling with JavaScript frameworks, but in the end I gave up and decided to just build it on my existing LÖVE code. Trying out a new thing is nice, but maybe not when I have a somewhat complicated game in mind that I want to build as soon as possible.

• fox flux: I made a font! Also drew a ton of player sprites and made my grass much prettier. I’m going to need to start thinking about environmental art soon, and I’m kinda dreading it because I have no idea what I’m doing there.

• art: I did some (unfinished) modelling and painted some character art (warning: this pic is fine, but the rest of the account is NSFW).

• blog: I wrote some thoughts about teaching technical subjects.

For the first time in possibly my entire life, I feel like I’m a little ahead of the game! The month isn’t even half over and I’ve already done some obligatory stuff, finished off one languishing task, and made some decent inroads into several other things. Nice.

Rivendell v2.16.0

Post Syndicated from ris original https://lwn.net/Articles/724636/rss

Rivendell 2.16.0 has been released. Rivendell is a radio automation system
targeted for use in professional broadcast environments. This version
includes audio store hashing, kernel GPIO, Modbus TCP support, and more.

“Only a year? It’s felt like forever”: a twelve-month retrospective

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/12-months-raspberry-pi/

This weekend saw my first anniversary at Raspberry Pi, and this blog marks my 100th post written for the company. It would have been easy to let one milestone or the other slide had they not come along hand in hand, begging for some sort of acknowledgement.

The day Liz decided to keep me

So here it is!

Joining the crew

Prior to my position in the Comms team as Social Media Editor, my employment history was largely made up of retail sales roles and, before that, bit parts in theatrical backstage crews. I never thought I would work for the Raspberry Pi Foundation, despite its firm position on my Top Five Awesome Places I’d Love to Work list. How could I work for a tech company when my knowledge of tech stretched as far as dismantling my Game Boy when I was a kid to see how the insides worked, or being the one friend everyone went to when their phone didn’t do what it was meant to do? I never thought about the other side of the Foundation coin, or how I could find my place within the hidden workings that turned the cogs that brought everything together.

… when suddenly, as if out of nowhere, a new job with a dream company. #raspberrypi #positive #change #dosomething

12 Likes, 1 Comments – Alex J’rassic (@thealexjrassic) on Instagram: “… when suddenly, as if out of nowhere, a new job with a dream company. #raspberrypi #positive…”

A little luck, a well-written though humorous resumé, and a meeting with Liz and Helen later, I found myself the newest member of the growing team at Pi Towers.

Ticking items off the Bucket List

I thought it would be fun to point out some of the chances I’ve had over the last twelve months and explain how they fit within the world of Raspberry Pi. After all, we’re about more than just a \$35 credit card-sized computer. We’re a charitable Foundation made up of some wonderful and exciting projects, people, and goals.

High altitude ballooning (HAB)

Skycademy offers educators in the UK the chance to come to Pi Towers Cambridge to learn how to plan a balloon launch, build a payload with onboard Raspberry Pi and Camera Module, and provide teachers with the skills needed to take their students on an adventure to near space, with photographic evidence to prove it.

All the screens you need to hunt balloons. . We have our landing point and are now rushing to Therford to find the payload in a field. . #HAB #RasppberryPi

332 Likes, 5 Comments – Raspberry Pi (@raspberrypifoundation) on Instagram: “All the screens you need to hunt balloons. . We have our landing point and are now rushing to…”

I was fortunate enough to join Sky Captain James, along with Dan Fisher, Dave Akerman, and Steve Randell on a test launch back in August last year. Testing out new kit that James had still been tinkering with that morning, we headed to a field in Elsworth, near Cambridge, and provided Facebook Live footage of the process from payload build to launch…to the moment when our balloon landed in an RAF shooting range some hours later.

“Can we have our balloon back, please, mister?”

Having enjoyed watching Blue Peter presenters send up a HAB when I was a child, I marked off the event on my bucket list with a bold tick, and I continue to show off the photographs from our Raspberry Pi as it reached near space.

Spend the day launching/chasing a high-altitude balloon. Look how high it went!!! #HAB #ballooning #space #wellspacekinda #ish #photography #uk #highaltitude

13 Likes, 2 Comments – Alex J’rassic (@thealexjrassic) on Instagram: “Spend the day launching/chasing a high-altitude balloon. Look how high it went!!! #HAB #ballooning…”

Dear Raspberry Pi Friends…

My desk is slowly filling with stuff: notes, mementoes, and trinkets that find their way to me from members of the community, both established and new to the life of Pi. There are thank you notes, updates, and more from people I’ve chatted to online as they explore their way around the world of Pi.

*heart melts*

By plugging myself into social media on a daily basis, I often find hidden treasures that go unnoticed due to the high volume of tags we receive on Facebook, Twitter, Instagram, and so on. Kids jumping off chairs in delight as they complete their first Scratch project, newcomers to the Raspberry Pi shedding a tear as they make an LED blink on their kitchen table, and seasoned makers turning their hobby into something positive to aid others.

It’s wonderful to join in the excitement of people discovering a new skill and exploring the community of Raspberry Pi makers: I’ve been known to shed a tear as a result.

Meeting educators at Bett, chatting to teen makers at makerspaces, and sharing a cupcake or three at the birthday party have been incredible opportunities to get to know you all.

You’re all brilliant.

The Queens of Robots, both shoddy and otherwise

Last year we welcomed the Queen of Shoddy Robots, Simone Giertz to Pi Towers, where we chatted about making, charity, and space while wandering the colleges of Cambridge and hanging out with flat Tim Peake.

Queen of Robots @simonegiertz came to visit #PiTowers today. We hung out with cardboard @astro_timpeake and ate chelsea buns at @fitzbillies #Cambridge. . We also had a great talk about the educational projects of the #RaspberryPi team, #AstroPi and how not enough people realise we’re a #charity. . If you’d like to learn more about the Raspberry Pi Foundation and the work we do with #teachers and #education, check out our website – www.raspberrypi.org. . How was your day? Get up to anything fun?

597 Likes, 3 Comments – Raspberry Pi (@raspberrypifoundation) on Instagram: “Queen of Robots @simonegiertz came to visit #PiTowers today. We hung out with cardboard…”

And last month, the wonderful Estefannie ‘Explains it All’ de La Garza came to hang out, make things, and discuss our educational projects.

Ahhhh!!! I still can’t believe I got to hang out and make stuff at the @Raspberry_Pi towers!! Thank you thank you!!

Meeting such wonderful, exciting, and innovative YouTubers was a fantastic inspiration to work on my own projects and to try to do more to help others discover ways to connect with tech through their own interests.

Those ‘wow’ moments

Every Raspberry Pi project I see on a daily basis is awesome. The moment someone takes an idea and does something with it is, in my book, always worthy of awe and appreciation. Whether it be the aforementioned flashing LED, or sending Raspberry Pis to the International Space Station, if you have turned your idea into reality, I applaud you.

Some of my favourite projects over the last twelve months have not only made me say “Wow!”, they’ve also inspired me to want to do more with myself, my time, and my growing maker skill.

Museum in a Box on Twitter

Great to meet @alexjrassic today and nerd out about @Raspberry_Pi and weather balloons and @Space_Station and all things #edtech ⛅🛰🤖

Projects such as Museum in a Box, a wonderful hands-on learning aid that brings the world to the hands of children across the globe, honestly made me tear up as I placed a miniaturised 3D-printed Virginia Woolf onto a wooden box and gasped as she started to speak to me.

Jill Ogle’s Let’s Robot project had me in awe as Twitch-controlled Pi robots tackled mazes, attempted to cut birthday cake, or swung to slap Jill in the face over webcam.

@SryAbtYourCats @tekn0rebel @Beam Lol speaking of faces… https://t.co/1tqFlMNS31

Every day I discover new, wonderful builds that both make me wish I’d thought of them first, and leave me wondering how they manage to make them work in the first place.

Space

We have Raspberry Pis in space. SPACE. Actually space.

New post: Mission accomplished for the European @astro_pi challenge and @esa @Thom_astro is on his way home https://t.co/ycTSDR1h1Q

Twelve months later, this still blows my mind.

And let’s not forget…

• The chance to visit both the Houses of Parliment and St James’s Palace

• Going to a Doctor Who pre-screening and meeting Peter Capaldi, thanks to Clare Sutcliffe

There’s no need to smile when you’re #DoctorWho.

13 Likes, 2 Comments – Alex J’rassic (@thealexjrassic) on Instagram: “There’s no need to smile when you’re #DoctorWho.”

We’re here. Where are you? . . . . . #raspberrypi #vidconeu #vidcon #pizero #zerow #travel #explore #adventure #youtube

1,944 Likes, 30 Comments – Raspberry Pi (@raspberrypifoundation) on Instagram: “We’re here. Where are you? . . . . . #raspberrypi #vidconeu #vidcon #pizero #zerow #travel #explore…”

• Making a GIF Cam and other builds, and sharing them with you all via the blog

Made a Gif Cam using a Raspberry Pi, Pi camera, button and a couple LEDs. . When you press the button, it takes 8 images and stitches them into a gif file. The files then appear on my MacBook. . Check out our Twitter feed (Raspberry_Pi) for examples! . Next step is to fit it inside a better camera body. . #DigitalMaking #Photography #Making #Camera #Gif #MakersGonnaMake #LED #Creating #PhotosofInstagram #RaspberryPi

19 Likes, 1 Comments – Alex J’rassic (@thealexjrassic) on Instagram: “Made a Gif Cam using a Raspberry Pi, Pi camera, button and a couple LEDs. . When you press the…”

The next twelve months

Despite Eben jokingly firing me near-weekly across Twitter, or Philip giving me the ‘Dad glare’ when I pull wires and buttons out of a box under my desk to start yet another project, I don’t plan on going anywhere. Over the next twelve months, I hope to continue discovering awesome Pi builds, expanding on my own skills, and curating some wonderful projects for you via the Raspberry Pi blog, the Raspberry Pi Weekly newsletter, my submissions to The MagPi Magazine, and the occasional video interview or two.

It’s been a pleasure. Thank you for joining me on the ride!

The post “Only a year? It’s felt like forever”: a twelve-month retrospective appeared first on Raspberry Pi.

Post Syndicated from mikesefanov original https://yahooeng.tumblr.com/post/160966148886

We’re excited to co-host the 10th Annual Hadoop Summit, the leading conference for the Apache Hadoop community, taking place on June 13 – 15 at the San Jose Convention Center. In the last few years, the Hadoop Summit has expanded to cover all things data beyond just Apache Hadoop – such as data science, cloud and operations, IoT and applications – and has been aptly renamed the DataWorks Summit. The three-day program is bursting at the seams! Here are just a few of the reasons why you cannot miss this must-attend event:

• Familiarize yourself with the cutting edge in Apache project developments from the committers
• Learn from your peers and industry experts about innovative and real-world use cases, development and administration tips and tricks, success stories and best practices to leverage all your data – on-premise and in the cloud – to drive predictive analytics, distributed deep-learning and artificial intelligence initiatives
• Attend one of our more than 170 technical deep dive breakout sessions from nearly 200 speakers across eight tracks
• Check out our keynotes, meetups, trainings, technical crash courses, birds-of-a-feather sessions, Women in Big Data and more
• Attend the community showcase where you can network with sponsors and industry experts, including a host of startups and large companies like Microsoft, IBM, Oracle, HP, Dell EMC and Teradata

Similar to previous years, we look forward to continuing Yahoo’s decade-long tradition of thought leadership at this year’s summit. Join us for an in-depth look at Yahoo’s Hadoop culture and for the latest in technologies such as Apache Tez, HBase, Hive, Data Highway Rainbow, Mail Data Warehouse and Distributed Deep Learning at the breakout sessions below. Or, stop by Yahoo kiosk #700 at the community showcase.

Also, as a co-host of the event, Yahoo is pleased to offer a 20% discount for the summit with the code MSPO20. Register here for Hadoop Summit, San Jose, California!

DAY 1. TUESDAY June 13, 2017

12:20 – 1:00 P.M. TensorFlowOnSpark – Scalable TensorFlow Learning On Spark Clusters

Andy Feng – VP Architecture, Big Data and Machine Learning

Lee Yang – Sr. Principal Engineer

In this talk, we will introduce a new framework, TensorFlowOnSpark, for scalable TensorFlow learning, that was open sourced in Q1 2017. This new framework enables easy experimentation for algorithm designs, and supports scalable training & inferencing on Spark clusters. It supports all TensorFlow functionalities including synchronous & asynchronous learning, model & data parallelism, and TensorBoard. It provides architectural flexibility for data ingestion to TensorFlow and network protocols for server-to-server communication. With a few lines of code changes, an existing TensorFlow algorithm can be transformed into a scalable application.

2:10 – 2:50 P.M. Handling Kernel Upgrades at Scale – The Dirty Cow Story

Samy Gawande – Sr. Operations Engineer

Savitha Ravikrishnan – Site Reliability Engineer

Apache Hadoop at Yahoo is a massive platform with 36 different clusters spread across YARN, Apache HBase, and Apache Storm deployments, totaling 60,000 servers made up of 100s of different hardware configurations accumulated over generations, presenting unique operational challenges and a variety of unforeseen corner cases. In this talk, we will share methods, tips and tricks to deal with large scale kernel upgrade on heterogeneous platforms within tight timeframes with 100% uptime and no service or data loss through the Dirty COW use case (privilege escalation vulnerability found in the Linux Kernel in late 2016).

5:00 – 5:40 P.M. Data Highway Rainbow –  Petabyte Scale Event Collection, Transport, and Delivery at Yahoo

Nilam Sharma – Sr. Software Engineer

Huibing Yin – Sr. Software Engineer

This talk presents the architecture and features of Data Highway Rainbow, Yahoo’s hosted multi-tenant infrastructure which offers event collection, transport and aggregated delivery as a service. Data Highway supports collection from multiple data centers & aggregated delivery in primary Yahoo data centers which provide a big data computing cluster. From a delivery perspective, Data Highway supports endpoints/sinks such as HDFS, Storm and Kafka; with Storm & Kafka endpoints tailored towards latency sensitive consumers.

DAY 2. WEDNESDAY June 14, 2017

9:05 – 9:15 A.M. Yahoo General Session – Shaping Data Platform for Lasting Value

Sumeet Singh  – Sr. Director, Products

With a long history of open innovation with Hadoop, Yahoo continues to invest in and expand the platform capabilities by pushing the boundaries of what the platform can accomplish for the entire organization. In the last 11 years (yes, it is that old!), the Hadoop platform has shown no signs of giving up or giving in. In this talk, we explore what makes the shared multi-tenant Hadoop platform so special at Yahoo.

12:20 – 1:00 P.M. CaffeOnSpark Update – Recent Enhancements and Use Cases

Mridul Jain – Sr. Principal Engineer

Jun Shi – Principal Engineer

By combining salient features from deep learning framework Caffe and big-data frameworks Apache Spark and Apache Hadoop, CaffeOnSpark enables distributed deep learning on a cluster of GPU and CPU servers. We released CaffeOnSpark as an open source project in early 2016, and shared its architecture design and basic usage at Hadoop Summit 2016. In this talk, we will update audiences about the recent development of CaffeOnSpark. We will highlight new features and capabilities: unified data layer which multi-label datasets, distributed LSTM training, interleave testing with training, monitoring/profiling framework, and docker deployment.

12:20 – 1:00 P.M. Tez Shuffle Handler – Shuffling at Scale with Apache Hadoop

Jon Eagles – Principal Engineer

Kuhu Shukla – Software Engineer

In this talk we introduce a new Shuffle Handler for Tez, a YARN Auxiliary Service, that addresses the shortcomings and performance bottlenecks of the legacy MapReduce Shuffle Handler, the default shuffle service in Apache Tez. The Apache Tez Shuffle Handler adds composite fetch which has support for multi-partition fetch to mitigate performance slow down and provides deletion APIs to reduce disk usage for long running Tez sessions. As an emerging technology we will outline future roadmap for the Apache Tez Shuffle Handler and provide performance evaluation results from real world jobs at scale.

2:10 – 2:50 P.M. Achieving HBase Multi-Tenancy with RegionServer Groups and Favored Nodes

Thiruvel Thirumoolan – Principal Engineer

Francis Liu – Sr. Principal Engineer

At Yahoo! HBase has been running as a hosted multi-tenant service since 2013. In a single HBase cluster we have around 30 tenants running various types of workloads (ie batch, near real-time, ad-hoc, etc). We will walk through multi-tenancy features explaining our motivation, how they work as well as our experiences running these multi-tenant clusters. These features will be available in Apache HBase 2.0.

2:10 – 2:50 P.M. Data Driving Yahoo Mail Growth and Evolution with a 50 PB Hadoop Warehouse

Nick Huang – Director, Data Engineering, Yahoo Mail

Saurabh Dixit – Sr. Principal Engineer, Yahoo Mail

Since 2014, the Yahoo Mail Data Engineering team took on the task of revamping the Mail data warehouse and analytics infrastructure in order to drive the continued growth and evolution of Yahoo Mail. Along the way we have built a 50 PB Hadoop warehouse, and surrounding analytics and machine learning programs that have transformed the way data plays in Yahoo Mail. In this session we will share our experience from this 3 year journey, from the system architecture, analytics systems built, to the learnings from development and drive for adoption.

DAY3. THURSDAY June 15, 2017

2:10 – 2:50 P.M. OracleStore – A Highly Performant RawStore Implementation for Hive Metastore

Chris Drome – Sr. Principal Engineer

Jin Sun – Principal Engineer

Today, Yahoo uses Hive in many different spaces, from ETL pipelines to adhoc user queries. Increasingly, we are investigating the practicality of applying Hive to real-time queries, such as those generated by interactive BI reporting systems. In order for Hive to succeed in this space, it must be performant in all aspects of query execution, from query compilation to job execution. One such component is the interaction with the underlying database at the core of the Metastore. As an alternative to ObjectStore, we created OracleStore as a proof-of-concept. Freed of the restrictions imposed by DataNucleus, we were able to design a more performant database schema that better met our needs. Then, we implemented OracleStore with specific goals built-in from the start, such as ensuring the deduplication of data. In this talk we will discuss the details behind OracleStore and the gains that were realized with this alternative implementation. These include a reduction of 97%+ in the storage footprint of multiple tables, as well as query performance that is 13x faster than ObjectStore with DirectSQL and 46x faster than ObjectStore without DirectSQL.

3:00 P.M. – 3:40 P.M. Bullet – A Real Time Data Query Engine

Akshai Sarma – Sr. Software Engineer

Michael Natkovich – Director, Engineering

Bullet is an open sourced, lightweight, pluggable querying system for streaming data without a persistence layer implemented on top of Storm. It allows you to filter, project, and aggregate on data in transit. It includes a UI and WS. Instead of running queries on a finite set of data that arrived and was persisted or running a static query defined at the startup of the stream, our queries can be executed against an arbitrary set of data arriving after the query is submitted. In other words, it is a look-forward system. Bullet is a multi-tenant system that scales independently of the data consumed and the number of simultaneous queries. Bullet is pluggable into any streaming data source. It can be configured to read from systems such as Storm, Kafka, Spark, Flume, etc. Bullet leverages Sketches to perform its aggregate operations such as distinct, count distinct, sum, count, min, max, and average.

3:00 P.M. – 3:40 P.M. Yahoo – Moving Beyond Running 100% of Apache Pig Jobs on Apache Tez

Rohini Palaniswamy – Sr. Principal Engineer

Last year at Yahoo, we spent great effort in scaling, stabilizing and making Pig on Tez production ready and by the end of the year retired running Pig jobs on Mapreduce. This talk will detail the performance and resource utilization improvements Yahoo achieved after migrating all Pig jobs to run on Tez. After successful migration and the improved performance we shifted our focus to addressing some of the bottlenecks we identified and new optimization ideas that we came up with to make it go even faster. We will go over the new features and work done in Tez to make that happen like custom YARN ShuffleHandler, reworking DAG scheduling order, serialization changes, etc. We will also cover exciting new features that were added to Pig for performance such as bloom join and byte code generation.

4:10 P.M. – 4:50 P.M. Leveraging Docker for Hadoop Build Automation and Big Data Stack Provisioning

Evans Ye,  Software Engineer

Apache Bigtop as an open source Hadoop distribution, focuses on developing packaging, testing and deployment solutions that help infrastructure engineers to build up their own customized big data platform as easy as possible. However, packages deployed in production require a solid CI testing framework to ensure its quality. Numbers of Hadoop component must be ensured to work perfectly together as well. In this presentation, we’ll talk about how Bigtop deliver its containerized CI framework which can be directly replicated by Bigtop users. The core revolution here are the newly developed Docker Provisioner that leveraged Docker for Hadoop deployment and Docker Sandbox for developer to quickly start a big data stack. The content of this talk includes the containerized CI framework, technical detail of Docker Provisioner and Docker Sandbox, a hierarchy of docker images we designed, and several components we developed such as Bigtop Toolchain to achieve build automation.

Register here for Hadoop Summit, San Jose, California with a 20% discount code MSPO20

Questions? Feel free to reach out to us at big[email protected] Hope to see you there!

Building a Competitive Moat: Turning Challenges Into Advantages

Post Syndicated from Gleb Budman original https://www.backblaze.com/blog/turning-challenges-into-advantages/

In my previous post on how Backblaze got started, I mentioned that “just because we knew the right solution, didn’t mean that it was possible.” I’ll dig into that here. The right solution was to offer unlimited backup for \$5 per month. The price of storage at the time, however, would have likely forced us to price our unlimited backup service at 2x – 5x that.

We were faced with a difficult challenge – compromise a fundamental feature of our product by removing the unlimited storage element, increase our price point in order to cover our costs but likely limit our potential customer base, seek funding in order to run at a loss while we built market share with a hope/prayer we could make a profit in the future, or find another way (huge unknown that might not have a solution). Below I’ll dig into the options that were available, the paths we tried, and how this challenge completely transformed our company and ended up being our greatest technological advantage.

Available Options:

Use a Storage Service

Originally we intended to build the backup application, but leave the back-end storage to others; likely Amazon S3. This had many advantages:

1. We would not have to worry about the storage at all
2. It would scale up or down as we needed it
3. We would pay only for what we used

Especially as a small, bootstrapped company with limited resources – these were incredible benefits.

There was just one problem. At S3’s then current pricing (\$0.15/GB/month), a customer storing just 33 GB would cost us 100% of the \$5 per month we would collect. Additionally, we would need to pay S3 transaction and download charges, along with our engineering/support/marketing and other expenses.. The conclusion, even if the average customer stored just 33 GB, it would cost us at least \$10/month for a customer that we were charging just \$5/month.

In 2007, when we were getting started, there were a few other storage services available. But all were more expensive. Despite the fantastic benefits of using such a service, it simply didn’t work for us.

Buying storage systems didn’t have all the benefits of using a storage service – we would have to forecast need, buy in big blocks up front, manage data centers, etc. – but it seemed the second-best option. Companies such as EMC, NetApp, Dell, and others sold hundreds of petabytes of storage systems where they provide the servers, software, and support.

Alas, there were two problems: One temporary, the other permanent (and fatal). The temporary problem was that these systems were hundreds of thousands of dollars just to get started. This was challenging for us from a cash-flow perspective, but it was just a question of coming up with the cash. The permanent problem was that these systems cost ~\$1,000/TB of storage. Hard drives were selling for ~\$100/TB, so there was a 10x markup for the storage system. That markup eliminated pursuing this path. What if the the average customer had 100 GB to store? It would take us 20 months to pay off the purchase. We weren’t sure how much data the average customer would have, but the scenarios we were running made it seem like a \$5/month price point was unsustainable.

Our Choices Where:

Don’t Offer the Right Solution

If it’s impossible to offer unlimited backup for \$5/month, there are certainly choices. We could have raised the price to \$10/month, not make the backup unlimited, or close-up shop altogether. All doable, none ideal.

Raise Funding

Plenty of companies raise funding before they can be self-sustaining, and it can work out great for everyone. We had raised funding for a previous company and believed we could have done it for Backblaze. And raising funding would have taken care of the cash-flow issue if we chose to buy storage systems.

However, it would have left us with a business with negative unit economics – we would lose money on every customer, and the faster we grew, the more money we would lose. VCs do fund these types of companies often (many of the delivery companies today fall in this realm) with the idea that, at scale, you improve your cost structure and possibly also charge more. But it’s a dangerous game since not only is the business not self-sustaining, it inevitably must be significantly altered in order to survive.

Find a Way to Store Data for Less

If there were some way to store data for less, significantly less, it could all work. We had a tiny glimmer of hope that it would be possible: Since hard drives only cost ~\$100/TB, if we could somehow use those drives without adding much overhead, that would be quite affordable.

“we wanted to build a sustainable business from day one and build a culture that believes dollars come from customers.”

Our first decision was to not compromise our product by restricting the amount of storage. Although this would have been a much easier solution, it violated our core mission: Create a simple and inexpensive solution to backup all of your important data.

We had previously also decided not to raise funding to get started because we wanted to build a sustainable business from day one and build a culture that believes dollars come from customers. With those decisions made, we moved onto finding the best solution to fulfill our mission and create a viable company.

Experimentation

All we wanted was to attach hard drives to the Internet. If we could do that inexpensively, our backup application could store the data there and we could offer our unlimited backup service.

A hard drive needs to be connected to a server to be available on the Internet. It certainly wouldn’t be very cost effective to have one server for every hard drive, as the server costs would dominate the equation. Alternatively, trying to attach a lot of drives to a server resulted in needing expensive “enterprise” servers. The goal then became cost-efficiently attaching as many hard drives as possible to one server. According to its spec, USB is supposed to allow for 127 devices to be daisy-chained to a single port. We tried; it didn’t work. We considered Firewire, which could connect 63 devices, but the connectors are aimed at graphic designers and ended up too expensive on a unit-basis. Our next thought was to use small consumer-grade DAS (Direct-attached storage) devices and connect those to a server. We managed to attach 8 DAS devices with 4 drives each for a total of 32 hard drives connected to one server.

This worked well, but it was operationally challenging as none of these devices were meant to fit in a data center rack. Further complicating matters was that moving one of these setups required cabling 10 power cords, and separately moving 9 boxes. Fine at small scale, but very hard to scale up.

We realized that we didn’t need all the boxes, we just needed backplanes to connect the drives from the DAS boxes to the motherboard from the server. We found a different DAS box that supports port multipliers and took that backplane. How did we decide on that DAS box? Tim, co-founder & Chief Cloud Officer, remembers going to Fry’s and picking the box that looked “about right”.

That all laid the path for our eventual 45 drive design. The next thought was: If we could put all that in one box, it might be the solution we were looking for. The first iteration of this was a plywood box.

That eventually evolved into a steel server and what we refer to as a Storage Pod.

Building a Storage Platform

The Storage Pod became our key building block, but was just a tiny component of the ‘storage platform’. We had to write software that would run on each Storage Pod, software that would create redundancy between the Storage Pods, and central software and systems that would coordinate other aspects of the system to accept/load balance/validate/clean-up data. We had to find and train contract manufacturers to build the Storage Pods, find and negotiate data center space and bandwidth, setup processes to buy drives and track their reliability, hire people to maintain the systems, and setup the business processes to do all of this and more at scale.

All of this ended up taking tremendous technical effort, management engagement, and work from all corners of Backblaze. But it has also paid enormous dividends.

The Transformation

We started Backblaze thinking of ourselves as a backup company. In reality, we became a storage company with ‘backup’ as the first service we offered on our storage platform. Our backup service relies on the storage platform as, without the storage platform, we couldn’t offer unlimited backup. To enable the backup service, storage became the foundation of our company and is still what we live and breathe every day.

It didn’t just change how we built the service, it changed the fundamental DNA of the company.

Dividends

Creating our own storage platform was certainly hard. But it enabled us to offer our unlimited backup for a low price and do that while running a sustainable business.

“It didn’t just change how we built the service, it changed the fundamental DNA of the company.”

We felt that we had a service and price point that customers wanted, and we “unlocked” the way to let us build it. Having our storage platform also provides us with a deep connection to our customers and the storage community – we share how we build Storage Pods and how reliable hard drives in our environment have been. That content, in turns, helps brings awareness to Backblaze; the awareness helps establish the company as a tech leader; that reputation helps us recruit to our growing team and earns customers who are evaluating our solutions vs Storage Company X.

And after years of being a storage company with a backup service, and being asked all the time to just offer our storage directly, we launched our Backblaze B2 Cloud Storage service. We offer this raw storage at a price of \$0.005/GB/month – that’s less than 1/4th of the price of S3.

If we had built our backup service on one of the existing storage services or storage systems, it would have been easier – but none of this would have been possible. This challenge, which we have spent a decade working to overcome, has also transformed our company and became our greatest technological advantage.

Open source energy monitoring using Raspberry Pi

Post Syndicated from Helen Lynn original https://www.raspberrypi.org/blog/open-source-energy-monitoring-raspberry-pi/

OpenEnergyMonitor, who make open-source tools for energy monitoring, have been using Raspberry Pi since we launched in 2012. Like Raspberry Pi, they manufacture their hardware in Wales and send it to people all over the world. We invited co-founder Glyn Hudson to tell us why they do what they do, and how Raspberry Pi helps.

Hi, I’m Glyn from OpenEnergyMonitor. The OpenEnergyMonitor project was founded out of a desire for open-source tools to help people understand and relate to their use of energy, their energy systems, and the challenge of sustainable energy.

The next 20 years will see a revolution in our energy systems, as we switch away from fossil fuels towards a zero-carbon energy supply.

By using energy monitoring, modelling, and assessment tools, we can take an informed approach to determine the best energy-saving measures to apply. We can then check to ensure solutions achieve their expected performance over time.

We started the OpenEnergyMonitor project in 2009, and the first versions of our energy monitoring system used an Arduino with Ethernet Shield, and later a Nanode RF with an embedded Ethernet controller. These early versions were limited by a very basic TCP/IP stack; running any sort of web application locally was totally out of the question!

I can remember my excitement at getting hold of the very first version of the Raspberry Pi in early 2012. Within a few hours of tearing open the padded envelope, we had Emoncms (our open-source web logging, graphing, and visualisation application) up and running locally on the Raspberry Pi. The Pi quickly became our web-connected base station of choice (emonBase). The following year, 2013, we launched the RFM12Pi receiver board (now updated to RFM69Pi). This allowed the Raspberry Pi to receive data via low-power RF 433Mhz from our emonTx energy monitoring unit, and later from our emonTH remote temperature and humidity monitoring node.

In 2015 we went all-in with Raspberry Pi when we launched the emonPi, an all-in-one Raspberry Pi energy monitoring unit, via Kickstarter. Thanks to the hard work of the Raspberry Pi Foundation, the emonPi has enjoyed several upgrades: extra processing power from the Raspberry Pi 2, then even more power and integrated wireless LAN thanks to the Raspberry Pi 3. With all this extra processing power, we have been able to build an open software stack including Emoncms, MQTT, Node-RED, and openHAB, allowing the emonPi to function as a powerful home automation hub.

Emoncms Apps interface to emonPi home automation hub

Inspired by the Raspberry Pi Foundation, we manufacture and assemble our hardware in Wales, UK, and ship worldwide via our online store.

All of our work is fully open source. We believe this is a better way of doing things: we can learn from and build upon each other’s work, creating better solutions to the challenges we face. Using Raspberry Pi has allowed us to draw on the expertise and work of many other projects. With lots of help from our fantastic community, we have built an online learning resource section of our website to help others get started: it covers things like basic AC power theory, Arduino, and the bigger picture of sustainable energy.

The post Open source energy monitoring using Raspberry Pi appeared first on Raspberry Pi.

Weekly roundup: A model week

Post Syndicated from Eevee original https://eev.ee/dev/2017/04/02/weekly-roundup-a-model-week/

• blog: I’m working on revamping the landing page here, and it’s coming along pretty well, but not quite done yet. Also, worked on some posts.

• art: I drew some quick sketchy Isaac’s Descent concept art (twitter, tumblr) and also three Eevees in a skirt (twitter, tumblr).

More noticably, I took another crack at 3D modelling again, to much greater success. I modelled Lexy (twitter, tumblr), then Kid Neon again (twitter, tumblr), then some kinda Eevee (twitter, tumblr). I didn’t intend to let this take over the better part of the week, but it’s a whole new thing so it kinda got stuck in my head for a few days.

Also I became a Veemon for April Fool’s Day (twitter, tumblr).

• book: I made a pretty decent dent in writing about collision detection, which is almost as hard as writing collision detection.

• gamedev: Little aimless work on fox flux and egg watch.

I’ve got some writing I really need to finish, but I’m hoping to spend April working on the book and doing low-pressure, vaguely experimental art/game stuff.

P.A.R.T.Y.

Post Syndicated from Philip Colligan original https://www.raspberrypi.org/blog/p-a-r-t-y/

On 4 and 5 March 2017, more than 1,800 people got together in Cambridge to celebrate five years of Raspberry Pi and Code Club. We had cake, code, robots, explosions, and unicorn face paint. It was all kinds of awesome.

Celebrating five years of Raspberry Pi and Code Club

Uploaded by Raspberry Pi on 2017-03-10.

It’s hard to believe that it was only five years ago that we launched the first Raspberry Pi computer. Back then, our ambitions stretched to maybe a few tens of thousands of units, and our hope was simply that we could inspire more young people to study computer science.

Fast forward to 2017 and the Raspberry Pi is the third most successful computing platform of all time, with more than twelve and a half million units used by makers, educators, scientists, and entrepreneurs all over the world (you can read more about this in our Annual Review).

On 28 February, we announced the latest addition to our family of devices, the Raspberry Pi Zero W, which brings wireless connectivity and Bluetooth to the Pi Zero for an astonishing \$10. You seemed to like it: in the four days between the product launch and the first day of the Birthday Party, we sold more than 100,000 units. We absolutely love seeing all the cool things you’re building with them!

Celebrating our community

Low-cost, high-performance computers are a big part of the story, but they’re not the whole story. One of the most remarkable things about Raspberry Pi is the amazing community that has come together around the idea that more people should have the skills and confidence to get creative with technology.

For every person working for the Raspberry Pi Foundation, there are hundreds and thousands of community members outside the organisation who advance that mission every day. They run Raspberry Jams, volunteer at Code Clubs, write educational resources, moderate our forums, and so much more. The Birthday Party is one of the ways that we celebrate what they’ve achieved and say thank you to them for everything they’ve done.

Over the two days of the celebration, there were 57 workshops and talks from community members, including several that were designed and run by young people. I managed to listen to more of the talks this year, and I was really impressed by the breadth of subjects covered and the expertise on display.

Big thanks to @Raspberry_Pi for letting me run #PiParty @edu_blocks workshop and to @cjdell for his continuing help and support

Educators are an important part of our community and it was great to see so many of our Certified Educators leading sessions and contributing across the whole event.

Thanks to my panel of @raspberry_pi certified educators – you are all amazing! #piparty https://t.co/0psnTEnfxq

Hands-on experiences

One of the goals for this year’s event was to give everyone the opportunity to get hands-on experience of digital making and, even if you weren’t able to get a place at one of the sold-out workshops, there were heaps of drop-in and ask-the-expert sessions, giving everyone the chance to get involved.

The marketplace was one of this year’s highlights: it featured more than 20 exhibitors including the awesome Pimoroni and Pi Hut, as well as some great maker creations, from the Tech Wishing Well to a game of robot football. It was great to see so many young people inspired by other people’s makes.

Code Club’s celebrations

As I mentioned before, this year’s party was very much a joint celebration, marking five years of both Raspberry Pi and Code Club.

Since its launch in 2012, Code Club has established itself as one of the largest networks of after-school clubs in the world. As well as celebrating the milestone of 5,000 active Code Clubs in the UK, it was a real treat to welcome Code Club’s partners from across the world, including Australia, Bangladesh, Brazil, Canada, Croatia, France, New Zealand, South Korea, and Ukraine.

Representatives of Code Club International, up for a birthday party!

Our amazing team

There are so many people to thank for making our fifth Birthday Party such a massive success. The Cambridge Junction was a fantastic venue with a wonderful team (you can support their work here). Our friends at RealVNC provided generous sponsorship and practical demonstrations. ModMyPi packed hundreds of swag bags with swag donated by all of our exhibitors. Fuzzy Duck Brewery did us proud with another batch of their Irrational Ale.

We’re hugely grateful to Sam Aaron and Fran Scott who provided the amazing finales on Saturday and Sunday. No party is quite the same without an algorave and a lot of explosions.

Most of all, I want to say a massive thank you to all of our volunteers and community members: you really did make the Birthday Party possible, and we couldn’t have done it without you.

One of the things we stand for at Raspberry Pi is making computing and digital making accessible to all. There’s a long way to go before we can claim that we’ve achieved that goal, but it was fantastic to see so much genuine diversity on display.

Probably the most important piece of feedback I heard about the weekend was how welcoming it felt for people who were new to the movement. That is entirely down to the generous, open culture that has been created by our community. Thank you all.

The post P.A.R.T.Y. appeared first on Raspberry Pi.

TV Time Machine

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/tv-time-machine/

Back when home television sets were thin on the ground and programmes were monochrome, TV maintained a magical aura, a ‘how do they fit the people in that little box’ wonder which has been lost now that sets are common and almost everyone has their own video camera or recording device. Many older shows were filmed specifically to be watched in black and white, and, in much the same way that plugging your SNES into an HD monitor doesn’t quite look right, old classics just don’t look the same when viewed on the modern screen.

50’s televisions were so pretty. So, so pretty.

Wellington Duraes, Senior Program Manager for Microsoft and proud owner of one of the best names I’ve ever seen, has used a Raspberry Pi and some readily available television content to build a TV Time Machine that draws us back to the days of classic, monochrome viewing the best way he can.

He may not be able to utilise the exact technology of the old screen, but he can trick our mind with the set’s retro aesthetics.

TV Time Machine

As explained in his hackster.io project page, Wellington joined his local Maker community, the Snohomish County Makers in Everett, WA, who helped him to build the wooden enclosure for the television. By purchasing turquoise speaker grille fabric online, he was able to give a gorgeous retro feeling to the outer shell.

Wellington: “I can’t really keep it on close to me because I’ll stop working to watch…”

For the innards, Wellington used a cannibalised thrift store Dell monitor, hooking it up to a Raspberry Pi 2 and some second-hand speakers. After the addition of Adafruit’s video looper code to loop free content downloaded from the Internet Archive, plus some 3D-printed channel and volume knobs, the TV Time Machine was complete.

The innards of the TV Time Machine

“Electronics are the easiest part,” explains Wellington. “This is basically a Raspberry Pi 2 playing videos in an infinite loop from a flash drive, a monitor, and a PC speaker.”

On a personal note, my first – and favourite – television was a black-and-white set, the remote long since lost. A hand-me-down from my parents’ bedroom, I remember watching the launch of Euro Disney on its tiny screen, imagining what the fireworks and parade would look like in colour. Of course, I could have just gone downstairs and watched it on the colour television in the living room, but there was something special about having my own screen whose content I could dictate.

For anyone too young to remember the resort’s original name.

On weekend mornings, I would wake and give up my rights to colour content in order to watch Teenage Mutant Ninja Turtles, Defenders of the Earth, and The Wuzzles (my favourite) on that black-and-white screen, knowing that no one would ask for the channel to be changed – what eight-year-old child wanted to watch boring things like the news and weather?

The Wuzzles theme

intro

I think that’s why I love this project so much, and why, despite now owning a ridiculously large smart TV with all the bells and whistles of modern technology, I want to build this for the nostalgia kick.

The post TV Time Machine appeared first on Raspberry Pi.