Tag Archives: raspberry

A Raspbian desktop update with some new programming tools

Post Syndicated from Simon Long original https://www.raspberrypi.org/blog/a-raspbian-desktop-update-with-some-new-programming-tools/

Today we’ve released another update to the Raspbian desktop. In addition to the usual small tweaks and bug fixes, the big new changes are the inclusion of an offline version of Scratch 2.0, and of Thonny (a user-friendly IDE for Python which is excellent for beginners). We’ll look at all the changes in this post, but let’s start with the biggest…

Scratch 2.0 for Raspbian

Scratch is one of the most popular pieces of software on Raspberry Pi. This is largely due to the way it makes programming accessible – while it is simple to learn, it covers many of the concepts that are used in more advanced languages. Scratch really does provide a great introduction to programming for all ages.

Raspbian ships with the original version of Scratch, which is now at version 1.4. A few years ago, though, the Scratch team at the MIT Media Lab introduced the new and improved Scratch version 2.0, and ever since we’ve had numerous requests to offer it on the Pi.

There was, however, a problem with this. The original version of Scratch was written in a language called Squeak, which could run on the Pi in a Squeak interpreter. Scratch 2.0, however, was written in Flash, and was designed to run from a remote site in a web browser. While this made Scratch 2.0 a cross-platform application, which you could run without installing any Scratch software, it also meant that you had to be able to run Flash on your computer, and that you needed to be connected to the internet to program in Scratch.

We worked with Adobe to include the Pepper Flash plugin in Raspbian, which enables Flash sites to run in the Chromium browser. This addressed the first of these problems, so the Scratch 2.0 website has been available on Pi for a while. However, it still needed an internet connection to run, which wasn’t ideal in many circumstances. We’ve been working with the Scratch team to get an offline version of Scratch 2.0 running on Pi.

Screenshot of Scratch on Raspbian

The Scratch team had created a website to enable developers to create hardware and software extensions for Scratch 2.0; this provided a version of the Flash code for the Scratch editor which could be modified to run locally rather than over the internet. We combined this with a program called Electron, which effectively wraps up a local web page into a standalone application. We ended up with the Scratch 2.0 application that you can find in the Programming section of the main menu.

Physical computing with Scratch 2.0

We didn’t stop there though. We know that people want to use Scratch for physical computing, and it has always been a bit awkward to access GPIO pins from Scratch. In our Scratch 2.0 application, therefore, there is a custom extension which allows the user to control the Pi’s GPIO pins without difficulty. Simply click on ‘More Blocks’, choose ‘Add an Extension’, and select ‘Pi GPIO’. This loads two new blocks, one to read and one to write the state of a GPIO pin.

Screenshot of new Raspbian iteration of Scratch 2, featuring GPIO pin control blocks.

The Scratch team kindly allowed us to include all the sprites, backdrops, and sounds from the online version of Scratch 2.0. You can also use the Raspberry Pi Camera Module to create new sprites and backgrounds.

This first release works well, although it can be slow for some operations; this is largely unavoidable for Flash code running under Electron. Bear in mind that you will need to have the Pepper Flash plugin installed (which it is by default on standard Raspbian images). As Pepper Flash is only compatible with the processor in the Pi 2.0 and Pi 3, it is unfortunately not possible to run Scratch 2.0 on the Pi Zero or the original models of the Pi.

We hope that this makes Scratch 2.0 a more practical proposition for many users than it has been to date. Do let us know if you hit any problems, though!

Thonny: a more user-friendly IDE for Python

One of the paths from Scratch to ‘real’ programming is through Python. We know that the transition can be awkward, and this isn’t helped by the tools available for learning Python. It’s fair to say that IDLE, the Python IDE, isn’t the most popular piece of software ever written…

Earlier this year, we reviewed every Python IDE that we could find that would run on a Raspberry Pi, in an attempt to see if there was something better out there than IDLE. We wanted to find something that was easier for beginners to use but still useful for experienced Python programmers. We found one program, Thonny, which stood head and shoulders above all the rest. It’s a really user-friendly IDE, which still offers useful professional features like single-stepping of code and inspection of variables.

Screenshot of Thonny IDE in Raspbian

Thonny was created at the University of Tartu in Estonia; we’ve been working with Aivar Annamaa, the lead developer, on getting it into Raspbian. The original version of Thonny works well on the Pi, but because the GUI is written using Python’s default GUI toolkit, Tkinter, the appearance clashes with the rest of the Raspbian desktop, most of which is written using the GTK toolkit. We made some changes to bring things like fonts and graphics into line with the appearance of our other apps, and Aivar very kindly took that work and converted it into a theme package that could be applied to Thonny.

Due to the limitations of working within Tkinter, the result isn’t exactly like a native GTK application, but it’s pretty close. It’s probably good enough for anyone who isn’t a picky UI obsessive like me, anyway! Have a look at the Thonny webpage to see some more details of all the cool features it offers. We hope that having a more usable environment will help to ease the transition from graphical languages like Scratch into ‘proper’ languages like Python.

New icons

Other than these two new packages, this release is mostly bug fixes and small version bumps. One thing you might notice, though, is that we’ve made some tweaks to our custom icon set. We wondered if the icons might look better with slightly thinner outlines. We tried it, and they did: we hope you prefer them too.

Downloading the new image

You can either download a new image from the Downloads page, or you can use apt to update:

sudo apt-get update
sudo apt-get dist-upgrade

To install Scratch 2.0:

sudo apt-get install scratch2

To install Thonny:

sudo apt-get install python3-thonny

One more thing…

Before Christmas, we released an experimental version of the desktop running on Debian for x86-based computers. We were slightly taken aback by how popular it turned out to be! This made us realise that this was something we were going to need to support going forward. We’ve decided we’re going to try to make all new desktop releases for both Pi and x86 from now on.

The version of this we released last year was a live image that could run from a USB stick. Many people asked if we could make it permanently installable, so this version includes an installer. This uses the standard Debian install process, so it ought to work on most machines. I should stress, though, that we haven’t been able to test on every type of hardware, so there may be issues on some computers. Please be sure to back up your hard drive before installing it. Unlike the live image, this will erase and reformat your hard drive, and you will lose anything that is already on it!

You can still boot the image as a live image if you don’t want to install it, and it will create a persistence partition on the USB stick so you can save data. Just select ‘Run with persistence’ from the boot menu. To install, choose either ‘Install’ or ‘Graphical install’ from the same menu. The Debian installer will then walk you through the install process.

You can download the latest x86 image (which includes both Scratch 2.0 and Thonny) from here or here for a torrent file.

One final thing

This version of the desktop is based on Debian Jessie. Some of you will be aware that a new stable version of Debian (called Stretch) was released last week. Rest assured – we have been working on porting everything across to Stretch for some time now, and we will have a Stretch release ready some time over the summer.

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CoderDojo Coolest Projects 2017

Post Syndicated from Ben Nuttall original https://www.raspberrypi.org/blog/coderdojo-coolest-projects-2017/

When I heard we were merging with CoderDojo, I was delighted. CoderDojo is a wonderful organisation with a spectacular community, and it’s going to be great to join forces with the team and work towards our common goal: making a difference to the lives of young people by making technology accessible to them.

You may remember that last year Philip and I went along to Coolest Projects, CoderDojo’s annual event at which their global community showcase their best makes. It was awesome! This year a whole bunch of us from the Raspberry Pi Foundation attended Coolest Projects with our new Irish colleagues, and as expected, the projects on show were as cool as can be.

Coolest Projects 2017 attendee

Crowd at Coolest Projects 2017

This year’s coolest projects!

Young maker Benjamin demoed his brilliant RGB LED table tennis ball display for us, and showed off his brilliant project tutorial website codemakerbuddy.com, which he built with Python and Flask. [Click on any of the images to enlarge them.]

Coolest Projects 2017 LED ping-pong ball display
Coolest Projects 2017 Benjamin and Oly

Next up, Aimee showed us a recipes app she’d made with the MIT App Inventor. It was a really impressive and well thought-out project.

Coolest Projects 2017 Aimee's cook book
Coolest Projects 2017 Aimee's setup

This very successful OpenCV face detection program with hardware installed in a teddy bear was great as well:

Coolest Projects 2017 face detection bear
Coolest Projects 2017 face detection interface
Coolest Projects 2017 face detection database

Helen’s and Oly’s favourite project involved…live bees!

Coolest Projects 2017 live bees

BEEEEEEEEEEES!

Its creator, 12-year-old Amy, said she wanted to do something to help the Earth. Her project uses various sensors to record data on the bee population in the hive. An adjacent monitor displays the data in a web interface:

Coolest Projects 2017 Aimee's bees

Coolest robots

I enjoyed seeing lots of GPIO Zero projects out in the wild, including this robotic lawnmower made by Kevin and Zach:

Raspberry Pi Lawnmower

Kevin and Zach’s Raspberry Pi lawnmower project with Python and GPIO Zero, showed at CoderDojo Coolest Projects 2017

Philip’s favourite make was a Pi-powered robot you can control with your mind! According to the maker, Laura, it worked really well with Philip because he has no hair.

Philip Colligan on Twitter

This is extraordinary. Laura from @CoderDojo Romania has programmed a mind controlled robot using @Raspberry_Pi @coolestprojects

And here are some pictures of even more cool robots we saw:

Coolest Projects 2017 coolest robot no.1
Coolest Projects 2017 coolest robot no.2
Coolest Projects 2017 coolest robot no.3

Games, toys, activities

Oly and I were massively impressed with the work of Mogamad, Daniel, and Basheerah, who programmed a (borrowed) Amazon Echo to make a voice-controlled text-adventure game using Java and the Alexa API. They’ve inspired me to try something similar using the AIY projects kit and adventurelib!

Coolest Projects 2017 Mogamad, Daniel, Basheerah, Oly
Coolest Projects 2017 Alexa text-based game

Christopher Hill did a brilliant job with his Home Alone LEGO house. He used sensors to trigger lights and sounds to make it look like someone’s at home, like in the film. I should have taken a video – seeing it in action was great!

Coolest Projects 2017 Lego home alone house
Coolest Projects 2017 Lego home alone innards
Coolest Projects 2017 Lego home alone innards closeup

Meanwhile, the Northern Ireland Raspberry Jam group ran a DOTS board activity, which turned their area into a conductive paint hazard zone.

Coolest Projects 2017 NI Jam DOTS activity 1
Coolest Projects 2017 NI Jam DOTS activity 2
Coolest Projects 2017 NI Jam DOTS activity 3
Coolest Projects 2017 NI Jam DOTS activity 4
Coolest Projects 2017 NI Jam DOTS activity 5
Coolest Projects 2017 NI Jam DOTS activity 6

Creativity and ingenuity

We really enjoyed seeing so many young people collaborating, experimenting, and taking full advantage of the opportunity to make real projects. And we loved how huge the range of technologies in use was: people employed all manner of hardware and software to bring their ideas to life.

Philip Colligan on Twitter

Wow! Look at that room full of awesome young people. @coolestprojects #coolestprojects @CoderDojo

Congratulations to the Coolest Projects 2017 prize winners, and to all participants. Here are some of the teams that won in the different categories:

Coolest Projects 2017 winning team 1
Coolest Projects 2017 winning team 2
Coolest Projects 2017 winning team 3

Take a look at the gallery of all winners over on Flickr.

The wow factor

Raspberry Pi co-founder and Foundation trustee Pete Lomas came along to the event as well. Here’s what he had to say:

It’s hard to describe the scale of the event, and photos just don’t do it justice. The first thing that hit me was the sheer excitement of the CoderDojo ninjas [the children attending Dojos]. Everyone was setting up for their time with the project judges, and their pure delight at being able to show off their creations was evident in both halls. Time and time again I saw the ninjas apply their creativity to help save the planet or make someone’s life better, and it’s truly exciting that we are going to help that continue and expand.

Even after 8 hours, enthusiasm wasn’t flagging – the awards ceremony was just brilliant, with ninjas high-fiving the winners on the way to the stage. This speaks volumes about the ethos and vision of the CoderDojo founders, where everyone is a winner just by being part of a community of worldwide friends. It was a brilliant introduction, and if this weekend was anything to go by, our merger certainly is a marriage made in Heaven.

Join this awesome community!

If all this inspires you as much as it did us, consider looking for a CoderDojo near you – and sign up as a volunteer! There’s plenty of time for young people to build up skills and start working on a project for next year’s event. Check out coolestprojects.com for more information.

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Is your product “Powered by Raspberry Pi”?

Post Syndicated from Mike Buffham original https://www.raspberrypi.org/blog/powered-by-raspberry-pi/

One of the most exciting things for us about the growth of the Raspberry Pi community has been the number of companies that have grown up around the platform, and who have chosen to embed our products into their own. While many of these design-ins have been “silent”, a number of people have asked us for a standardised way to indicate that a product contains a Raspberry Pi or a Raspberry Pi Compute Module.

Powered by Raspberry Pi Logo

At the end of last year, we introduced a “Powered by Raspberry Pi” logo to meet this need. It is now included in our trademark rules and brand guidelines, which you can find on our website. Below we’re showing an early example of a “Powered by Raspberry Pi”-branded device, the KUNBUS Revolution Pi industrial PC. It has already made it onto the market, and we think it will inspire you to include our logo on the packaging of your own product.

KUNBUS RevPi
Powered by Raspberry Pi logo on RevPi

Using the “Powered by Raspberry Pi” brand

Adding the “Powered by Raspberry Pi” logo to your packaging design is a great way to remind your customers that a portion of the sale price of your product goes to the Raspberry Pi Foundation and supports our educational work.

As with all things Raspberry Pi, our rules for using this brand are fairly straightforward: the only thing you need to do is to fill out this simple application form. Once you have submitted it, we will review your details and get back to you as soon as possible.

When we approve your application, we will require that you use one of the official “Powered by Raspberry Pi” logos and that you ensure it is at least 30 mm wide. We are more than happy to help you if you have any design queries related to this – just contact us at [email protected]

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Shelfchecker Smart Shelf: build a home library system

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/smart-shelf-home-library/

Are you tired of friends borrowing your books and never returning them? Maybe you’re sure you own 1984 but can’t seem to locate it? Do you find a strange satisfaction in using the supermarket self-checkout simply because of the barcode beep? With the ShelfChecker smart shelf from maker Annelynn described on Instructables, you can be your own librarian and never misplace your books again! Beep!

Shelfchecker smart shelf annelynn Raspberry Pi

Harry Potter and the Aesthetically Pleasing Smart Shelf

The ShelfChecker smart shelf

Annelynn built her smart shelf utilising a barcode scanner, LDR light sensors, a Raspberry Pi, plus a few other peripherals and some Python scripts. She has created a fully integrated library checkout system with accompanying NeoPixel location notification for your favourite books.

This build allows you to issue your book-borrowing friends their own IDs and catalogue their usage of your treasured library. On top of that, you’ll be able to use LED NeoPixels to highlight your favourite books, registering their removal and return via light sensor tracking.

Using light sensors for book cataloguing

Once Annelynn had built the shelf, she drilled holes to fit the eight LDRs that would guard her favourite books, and separated them with corner brackets to prevent confusion.

Shelfchecker smart shelf annelynn Raspberry Pi

Corner brackets keep the books in place without confusion between their respective light sensors

Due to the limitations of the MCP3008 Adafruit microchip, the smart shelf can only keep track of eight of your favourite books. But this limitation won’t stop you from cataloguing your entire home library; it simply means you get to pick your ultimate favourites that will occupy the prime real estate on your wall.

Obviously, the light sensors sense light. So when you remove or insert a book, light floods or is blocked from that book’s sensor. The sensor sends this information to the Raspberry Pi. In response, an Arduino controls the NeoPixel strip along the ‘favourites’ shelf to indicate the book’s status.

Shelfchecker smart shelf annelynn Raspberry Pi

The book you are looking for is temporarily unavailable

Code your own library

While keeping a close eye on your favourite books, the system also allows creation of a complete library catalogue system with the help of a MySQL database. Users of the library can log into the system with a barcode scanner, and take out or return books recorded in the database guided by an LCD screen attached to the Pi.

Shelfchecker smart shelf annelynn Raspberry Pi

Beep!

I won’t go into an extensive how-to on creating MySQL databases here on the blog, because my glamourous assistant Janina has pulled up these MySQL tutorials to help you get started. Annelynn’s Github scripts are also packed with useful comments to keep you on track.

Raspberry Pi and books

We love books and libraries. And considering the growing number of Code Clubs and makespaces into libraries across the world, and the host of book-based Pi builds we’ve come across, the love seems to be mutual.

We’ve seen the Raspberry Pi introduced into the Wordery bookseller warehouse, a Pi-powered page-by-page book scanner by Jonathon Duerig, and these brilliant text-to-speech and page turner projects that use our Pis!

Did I say we love books? In fact we love them so much that members of our team have even written a few.*

If you’ve set up any sort of digital making event in a library, have in some way incorporated Raspberry Pi into your own personal book collection, or even managed to recreate the events of your favourite story using digital making, make sure to let us know in the comments below.

* Shameless plug**

Fancy adding some Pi to your home library? Check out these publications from the Raspberry Pi staff:

A Beginner’s Guide to Coding by Marc Scott

Adventures in Raspberry Pi by Carrie Anne Philbin

Getting Started with Raspberry Pi by Matt Richardson

Raspberry Pi User Guide by Eben Upton

The MagPi Magazine, Essentials Guides and Project Books

Make Your Own Game and Build Your Own Website by CoderDojo

** Shameless Pug

 

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Mira, tiny robot of joyful delight

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/mira-robot-alonso-martinez/

The staff of Pi Towers are currently melting into puddles while making ‘Aaaawwwwwww’ noises as Mira, the adorable little Pi-controlled robot made by Pixar 3D artist Alonso Martinez, steals their hearts.

Mira the robot playing peek-a-boo

If you want to get updates on Mira’s progress, sign up for the mailing list! http://eepurl.com/bteigD Mira is a desk companion that makes your life better one smile at a time. This project explores human robot interactivity and emotional intelligence. Currently Mira uses face tracking to interact with the users and loves playing the game “peek-a-boo”.

Introducing Mira

Honestly, I can’t type words – I am but a puddle! If I could type at all, I would only produce a stream of affectionate fragments. Imagine walking into a room full of kittens. What you would sound like is what I’d type.

No! I can do this. I’m a professional. I write for a living! I can…

SHE BLINKS OHMYAAAARGH!!!

Mira Alonso Martinez Raspberry Pi

Weebl & Bob meets South Park’s Ike Broflovski in an adorable 3D-printed bundle of ‘Aaawwwww’

Introducing Mira (I promise I can do this)

Right. I’ve had a nap and a drink. I’ve composed myself. I am up for this challenge. As long as I don’t look directly at her, I’ll be fine!

Here I go.

As one of the many über-talented 3D artists at Pixar, Alonso Martinez knows a thing or two about bringing adorable-looking characters to life on screen. However, his work left him wondering:

In movies you see really amazing things happening but you actually can’t interact with them – what would it be like if you could interact with characters?

So with the help of his friends Aaron Nathan and Vijay Sundaram, Alonso set out to bring the concept of animation to the physical world by building a “character” that reacts to her environment. His experiments with robotics started with Gertie, a ball-like robot reminiscent of his time spent animating bouncing balls when he was learning his trade. From there, he moved on to Mira.

Mira Alonso Martinez

Many, many of the views of this Tested YouTube video have come from me. So many.

Mira swivels to follow a person’s face, plays games such as peekaboo, shows surprise when you finger-shoot her, and giggles when you give her a kiss.

Mira’s inner workings

To get Mira to turn her head in three dimensions, Alonso took inspiration from the Microsoft Sidewinder Pro joystick he had as a kid. He purchased one on eBay, took it apart to understand how it works, and replicated its mechanism for Mira’s Raspberry Pi-powered innards.

Mira Alonso Martinez

Alonso used the smallest components he could find so that they would fit inside Mira’s tiny body.

Mira’s axis of 3D-printed parts moves via tiny Power HD DSM44 servos, while a camera and OpenCV handle face-tracking, and a single NeoPixel provides a range of colours to indicate her emotions. As for the blinking eyes? Two OLED screens boasting acrylic domes fit within the few millimeters between all the other moving parts.

More on Mira, including her history and how she works, can be found in this wonderful video released by Tested this week.

Pixar Artist’s 3D-Printed Animated Robots!

We’re gushing with grins and delight at the sight of these adorable animated robots created by artist Alonso Martinez. Sean chats with Alonso to learn how he designed and engineered his family of robots, using processes like 3D printing, mold-making, and silicone casting. They’re amazing!

You can also sign up for Alonso’s newsletter here to stay up-to-date about this little robot. Hopefully one of these newsletters will explain how to buy or build your own Mira, as I for one am desperate to see her adorable little face on my desk every day for the rest of my life.

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BackMap, the haptic navigation system

Post Syndicated from Janina Ander original https://www.raspberrypi.org/blog/backmap-haptic/

At this year’s TechCrunch Disrupt NY hackathon, one team presented BackMap, a haptic feedback system which helps visually impaired people to navigate cities and venues. It is assisted by a Raspberry Pi and integrated into a backpack.

Good vibrations with BackMap

The team, including Shashank Sharma, wrote an iOS phone app in Swift, Apple’s open-source programming language. To convert between addresses and geolocations, they used the Esri APIs offered by PubNub. So far, so standard. However, they then configured their BackMap setup so that the user can input their destination via the app, and then follow the route without having to look at a screen or listen to directions. Instead, vibrating motors have been integrated into the straps of a backpack and hooked up to a Raspberry Pi. Whenever the user needs to turn left or right, the Pi makes the respective motor vibrate.

Disrupt NY 2017 Hackathon | Part 1

Disrupt NY 2017 Hackathon presentations filmed live on May 15th, 2017. Preceding the Disrupt Conference is Hackathon weekend on May 13-14, where developers and engineers descend from all over the world to take part in a 24-hour hacking endurance test.

BackMap can also be adapted for indoor navigation by receiving signals from beacons. This could be used to direct users to toilet facilities or exhibition booths at conferences. The team hopes to upgrade the BackMap device to use a wristband format in the future.

Accessible Pi

Here at Pi Towers, we are always glad to see Pi builds for people with disabilities: we’ve seen Sanskriti and Aman’s Braille teacher Mudra, the audio e-reader Valdema by Finnish non-profit Kolibre, and Myrijam and Paul’s award-winning, eye-movement-controlled wheelchair, to name but a few.

Our mission is to bring the power of coding and digital making to everyone, and we are lucky to be part of a diverse community of makers and educators who have often worked proactively to make events and resources accessible to as many people as possible. There is, for example, the autism- and Tourette’s syndrome-friendly South London Raspberry Jam, organised by Femi Owolade-Coombes and his mum Grace. The Raspberry VI website is a portal to all things Pi for visually impaired and blind people. Deaf digital makers may find Jim Roberts’ video tutorials, which are signed in ASL, useful. And anyone can contribute subtitles in any language to our YouTube channel.

If you create or use accessible tutorials, or run a Jam, Code Club, or CoderDojo that is designed to be friendly to people who are neuroatypical or have a disability, let us know how to find your resource or event in the comments!

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Making Waves: print out sound waves with the Raspberry Pi

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/printed-sound-wave/

For fun, Eunice Lee, Matthew Zhang, and Bomani McClendon have worked together to create Waves, an audiovisual project that records people’s spoken responses to personal questions and prints them in the form of a sound wave as a gift for being truthful.

Waves

Waves is a Raspberry Pi project centered around transforming the transience of the spoken word into something concrete and physical. In our setup, a user presses a button corresponding to an intimate question (ex: what’s your motto?) and answers it into a microphone while pressing down on the button.

What are you grateful for?

“I’m grateful for finishing this project,” admits maker Eunice Lee as she presses a button and speaks into the microphone that is part of the Waves project build. After a brief moment, her confession appears on receipt paper as a waveform, and she grins toward the camera, happy with the final piece.

Eunice testing Waves

Waves is a Raspberry Pi project centered around transforming the transience of the spoken word into something concrete and physical. In our setup, a user presses a button corresponding to an intimate question (ex: what’s your motto?) and answers it into a microphone while pressing down on the button.

Sound wave machine

Alongside a Raspberry Pi 3, the Waves device is comprised of four tactile buttons, a standard USB microphone, and a thermal receipt printer. This type of printer has become easily available for the maker movement from suppliers such as Adafruit and Pimoroni.

Eunice Lee, Matthew Zhang, Bomani McClendon - Sound Wave Raspberry Pi

Definitely more fun than a polygraph test

The trio designed four colour-coded cards that represent four questions, each of which has a matching button on the breadboard. Press the button that belongs to the question to be answered, and Python code directs the Pi to record audio via the microphone. Releasing the button stops the audio recording. “Once the recording has been saved, the script viz.py is launched,” explains Lee. “This script takes the audio file and, using Python matplotlib magic, turns it into a nice little waveform image.”

From there, the Raspberry Pi instructs the thermal printer to produce a printout of the sound wave image along with the question.

Making for fun

Eunice, Bomani, and Matt, students of design and computer science at Northwestern University in Illinois, built Waves as a side project. They wanted to make something at the intersection of art and technology and were motivated by the pure joy of creating.

Eunice Lee, Matthew Zhang, Bomani McClendon - Sound Wave Raspberry Pi

Making makes people happy

They have noted improvements that can be made to increase the scope of their sound wave project. We hope to see many more interesting builds from these three, and in the meantime we invite you all to look up their code on Eunice’s GitHub to create your own Waves at home.

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Estefannie’s GPS-Controlled GoPro Photo Taker

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/estefannie-gopro-selfie/

Are you tired of having to take selfies physically? Do you only use your GoPro for the occasional beach vacation? Are you maybe even wondering what to do with the load of velcro you bought on a whim? Then we have good news for you: Estefannie‘s back to help you out with her Personal Automated GPS-Controlled Portable Photo Taker…PAGCPPT for short…or pagsssspt, if you like.

RASPBERRY PI + GPS CONTROLLED PHOTO TAKER

Hey World! Do you like vacation pictures but don’t like taking them? Make your own Personal Automated GPS Controlled Portable Photo Taker! The code, components, and instructions are in my Hackster.io account: https://www.hackster.io/estefanniegg/automated-gps-controlled-photo-taker-3fc84c For this build, I decided to put together a backpack to take pictures of me when I am close to places that like.

The Personal Automated GPS-Controlled Portable Photo Taker

Try saying that five times in a row.

Go on. I’ll wait.

Using a Raspberry Pi 3, a GPS module, a power pack, and a GoPro plus GoPro Stick, Estefannie created the PAGCPPT as a means of automatically taking selfies at pre-specified tourist attractions across London.

Estefannie Explains it All Raspberry Pi GPS GoPro Camera

There’s pie in my backpack too…but it’s a bit messy

With velcro and hot glue, she secured the tech in place on (and inside) a backpack. Then it was simply a case of programming her set up to take pictures while she walked around the city.

Estefannie Explains it All Raspberry Pi GPS GoPro Camera

Making the GoPro…go

Estefannie made use of a GoPro API library to connect her GoPro to the Raspberry Pi via WiFi. With the help of this library, she wrote a Python script that made the GoPro take a photograph whenever her GPS module placed her within a ten-metre radius of a pre-selected landmark such as Tower Bridge, Abbey Road, or Platform 9 3/4.

Estefannie Explains it All Raspberry Pi GPS GoPro Camera

“Accio selfie.”

The full script, as well as details regarding the components she used for the project, can be found on her hackster.io page here.

Estefannie Explains it All

You’ll have noticed that we’ve covered Estefannie once or twice before on the Raspberry Pi blog. We love project videos that convey a sense of ‘Oh hey, I can totally build one of those!’, and hers always tick that box. They are imaginative, interesting, quirky, and to be totally honest with you, I’ve been waiting for this particular video since she hinted at it on her visit to Pi Towers in May. I got the inside scoop, yo!

What’s better than taking pictures? Not taking pictures. But STILL having pictures. I made a personal automated GPS controlled Portable Photo Taker ⚡ NEW VIDEO ALERT⚡ Link in bio.

1,351 Likes, 70 Comments – Estefannie Explains It All (@estefanniegg) on Instagram: “What’s better than taking pictures? Not taking pictures. But STILL having pictures. I made a…”

Make sure to follow her on YouTube and Instagram for more maker content and random shenanigans. And if you have your own maker social media channel, YouTube account, blog, etc, this is your chance to share it for the world to see in the comments below!

The post Estefannie’s GPS-Controlled GoPro Photo Taker appeared first on Raspberry Pi.

A rather dandy Pi-assisted Draisine

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/dandy-draisine/

It’s time to swap pedal power for relaxed strides with the Raspberry Pi-assisted Draisine from bicyle-modding pro Prof. Holger Hermanns.

Raspberry PI-powered Dandy Horse Draisine

So dandy…

A Draisine…

If you have children yourself or have seen them in the wild on occasion, you may be aware of how much they like balance bikes – bicycle frames without pedals, propelled by striding while sitting on the seat. It’s a nice way for children to take the first steps (bah-dum tss) towards learning to ride a bicycle. However, between 1817, when the balance bike (also known as a draisine or Dandy Horse) was invented by Karl von Drais, and the introduction of the pedal bike around 1860, this vehicle was the new, fun, and exciting way to travel for everyone.

Raspberry PI-powered Dandy Horse Draisine

We can’t wait for the inevitable IKEA flatpack release

Having previously worked on wireless braking systems for bicycles, Prof. Hermanns is experienced in adding tech to two wheels. Now, he and his team of computer scientists at Germany’s Saarland University have updated the balance bike for the 21st century: they built the Draisine 200.0 to explore pedal-free, power-assisted movement as part of the European Research Council-funded POWVER project.

With this draisine, his team have created a beautiful, fully functional final build that would look rather fetching here on the bicycle-flooded streets of Cambridge.

The frame of the bike, except for the wheel bearings and the various screws, is made of Okoumé wood, which looks somewhat rose, has fine nerves (which means that it is easy to mill) and seems to have excellent weather resistance.

Draisine 200.0

Uploaded by ecomento.tv on 2017-06-08.

…with added Pi!

Within the wooden body of the draisine lies a array of electrical components, including a 200-watt rear hub motor, a battery, an accelerometer, a magnetic sensor, and a Raspberry Pi. Checking the accelerometer and reading wheel-embedded sensors 150 times per second (wow!), the Pi activates the hub motor to assist the draisine, which allows it to reach speeds of up to 16mph (25km/h – wow again!).

Raspberry PI-powered Dandy Horse Draisine

The inner workings of the Draisine 200.0

More detailed information on the Draisine 200.0 build can be found here. Hermanns’s team also plan to release the code for the project once confirmation of no licence infringement has been given.

Take to the road

We’ve seen a variety of bicycle-oriented Pi builds that improve safety and help with navigation. But as for electricity-assisted Pi bikes, this one may be the first, and it’s such a snazzy one at that!

If you’d like to see more cycle-based projects using the Raspberry Pi, check out Matt’s Smart Bike Light, David’s bike computer, and, for the fun of it, the Pi-powered bicycle beer dispenser we covered last month.

The Pi Towers hive mind is constantly discussing fun new ways for its active cycling community to use the Raspberry Pi, and we’d love to hear your ideas as well! So please do share them in the comments below.

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Nintendo & BREIN Target Seller of ‘Pirate’ Retro Gaming System

Post Syndicated from Andy original https://torrentfreak.com/nintendo-brein-target-seller-of-pirate-retro-gaming-system-170610/

As millions of often younger gamers immerse themselves in the latest 3D romp-fests from the world’s leading games developers, huge numbers of people are reliving their youth through the wonders of emulation.

The majority of old gaming systems can be emulated on a decent PC these days, opening up the possibility of reanimating thousands of the greatest games to ever grace the planet. While that’s a great prospect, the good news doesn’t stop there. The games are all free – if you don’t mind pirating them.

While many people go the do-it-yourself route by downloading emulators and ROMs (the games) from the Internet, increasingly people are saving time by buying systems ready-made online. Some of these are hugely impressive, housed in full-size arcade machine cabinets and packing many thousands of games. They also have sizeable price tags to match, running in some cases to thousands of dollars. But there are other options.

The rise of affordable compact computers has opened up emulation and retro gaming to a whole new audience and inevitable some people have taken to selling these devices online with the games pre-bundled on SD cards. These systems can be obtained relatively cheaply but despite the games being old, companies like Nintendo still take a dim view of their sale.

That’s also the case in the Netherlands, where Nintendo and other companies are taking action against people involved in the sale of what are effectively pirate gaming systems. In a recent case, Dutch anti-piracy outfit BREIN took action against the operator of the Retrospeler (Retro Player) site, an outlet selling a ready-made retro gaming system.

Retro Player site (translated from Dutch)

As seen from the image above, for a little under 110 euros the player can buy a games machine with classics like Super Mario, Street Fighter, and Final Fantasy pre-installed. Add a TV via an HDMI lead and a joypad or two, and yesteryear gaming becomes reality today. Unfortunately, the fun didn’t last long and it was soon “Game Over” for Retro Player.

Speaking with TorrentFreak, BREIN chief Tim Kuik says that the system sold by Retro Player was based on the popular Raspberry Pi single-board computer. Although small and relatively cheap, the Pi is easily capable of running retro games via software such as RetroPie, but it’s unclear which product was installed on the version sold by Retro Player.

What is clear is that the device came pre-installed with a lot of games. The now-defunct Retro Player site listed 6,500 titles for a wide range of classic gaming systems, including Gameboy, Super Nintendo, Nintendo 64, Megadrive and Playstation. Kuik didn’t provide precise numbers but said that the machine came packaged with “a couple of thousand” titles.

BREIN says in this particular case it was acting on behalf of Nintendo, among others. However, it doesn’t appear that the case will be going to court. Like many other cases handled by the anti-piracy group, BREIN says it has reached a settlement with the operator of the Retro Player site for an unspecified amount.

The debate and controversy surrounding retro gaming and emulation is one that has been running for years. The thriving community sees little wrong with reanimating games for long-dead systems and giving them new life among a new audience. On the other hand, copyright holders such as Nintendo view their titles as their property, to be exploited in a time, place and manner of their choosing.

While that friction will continue for a long time to come, there will be few if any legal problems for those choosing to pursue their emulation fantasies in the privacy of their own home. Retro gaming is here to stay and as long as computing power continues to increase, the experience is only likely to improve.

Source: TF, for the latest info on copyright, file-sharing, torrent sites and ANONYMOUS VPN services.

Encased in amber: meet the epoxy-embedded Pi

Post Syndicated from Janina Ander original https://www.raspberrypi.org/blog/epoxy-pi-resin-io/

The maker of one of our favourite projects from this year’s Maker Faire Bay Area took the idea of an ’embedded device’ and ran with it: Ronald McCollam has created a wireless, completely epoxy-encased Pi build – screen included!

Resin.io in resin epoxy-encased Raspberry Pi

*cue epic music theme* “Welcome…to resin in resin.”

Just encase…

Of course, this build is not meant to be a museum piece: Ronald embedded a Raspberry Pi 3 with built-in wireless LAN and Bluetooth to create a hands-on demonstration of the resin.io platform, for which he is a Solution Architect. Resin.io is useful for remotely controlling groups of Linux-based IoT devices. In this case, Ronald used it to connect to the encased Pi. And yes, he named his make Resin-in-resin – we salute you, sir!

resin.io in resin epoxy-encased Raspberry Pi

“Life uh…finds a way.”

Before he started the practical part of his project, he did his research to find a suitable resin. He found that epoxy types specifically designed for encasing electronics are very expensive. In the end, Ronald tried out a cheap type, usually employed to coat furniture, by encasing an LED. It worked perfectly, and he went ahead to use this resin for embedding the Pi.

Bubbleshooting epoxy

This was the first time Ronald had worked with resin, so he learned some essential things about casting. He advises other makers to mix the epoxy very, very slowly to minimize the formation of bubbles; to try their hands on some small-scale casting attempts first; and to make sure they’re using a large enough mold for casting. Another thing to keep in mind is that some components of the make will heat up and expand while the device is running.

His first version of an encased Pi was still connected to the outside world by its USB cable:

Ronald McCollam on Twitter

Updates don’t get more “hands off” than a Raspberry Pi encased in epoxy — @resin_io inside resin! Come ask me about it at @DockerCon!

Not satisfied with this, he went on to incorporate an inductive charging coil as a power source, so that the Pi could be totally insulated in epoxy. The Raspberry Pi Foundation’s Matt Richardson got a look the finished project at Maker Faire Bay Area:

MattRichardson🏳️‍🌈 on Twitter

If you’re at @makerfaire, you must check out what @resin_io is showing. A @Raspberry_Pi completely enclosed in resin. Completely wireless. https://t.co/djVjoLz3hI

MAGNETS!

The charging coil delivers enough power to keep the Pi running for several hours, but it doesn’t allow secure booting. After some head-scratching, Ronald came up with a cool solution to this problem: he added a battery and a magnetic reed switch. He explains:

[The] boot process is to use the magnetic switch to turn off the Pi, put it on the charger for a few minutes to allow the battery to charge up, then remove the magnet so the Pi boots.

Pi in resin controlled by resin.io

“God help us, we’re in the hands of engineers.”

He talks about his build on the resin.io blog, and has provided a detailed project log on Hackaday. For those of you who want to recreate this project at home, Ronald has even put together an Adafruit wishlist of the necessary components.

Does this resin-ate with you?

What’s especially great about Ronald’s posts is that they’re full of helpful tips about getting started with using epoxy resin in your digital making projects. So whether you’re keen to build your own wireless Pi, or just generally interested in embedding electronic components in resin, you’ll find his write-ups useful.

If you have experience in working with epoxy and electronic devices and want to share what you’ve learned, please do so in the comments!

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Tweetponic lavender: nourishing nature with the Twitter API

Post Syndicated from Janina Ander original https://www.raspberrypi.org/blog/tweetponic-lavender/

In a Manhattan gallery, there is an art installation that uses a Raspberry Pi to control the lights, nourishing an underground field of lavender. The twist: the Pi syncs the intensity of the lights to the activity of a dozen or so Twitter accounts belonging to media personalities and members of the US government.

In May 2017 I cultivated a piece of land in Midtown Manhattan nurtured by tweets.

204 Likes, 5 Comments – Martin Roth (@martinroth02) on Instagram: “In May 2017 I cultivated a piece of land in Midtown Manhattan nurtured by tweets.”

Turning tweets into cellulose

Artist Martin Roth has used the Raspberry Pi to access the accounts via the Twitter API, and to track their behaviour. This information is then relayed to the lights in real time. The more tweets, retweets, and likes there are on these accounts at a given moment, the brighter the lights become, and the better the lavender plants grow. Thus Twitter storms are converted into plant food, and ultimately into a pleasant lavender scent.

Until June 21st @ ACF (11 East 52nd Street)

39 Likes, 1 Comments – Martin Roth (@martinroth02) on Instagram: “Until June 21st @ ACF (11 East 52nd Street)”

Regarding his motivation to create the art installation, Martin Roth says:

[The] Twitter storm is something to be resisted. But I am using it in my exhibition as a force to create growth.

The piece, descriptively titled In May 2017 I cultivated a piece of land in Midtown Manhattan nurtured by tweets, is on show at the Austrian Cultural Forum, New York.

Using the Twitter API as part of digital making

We’ve seen a number of cool makes using the Twitter API. These often involve the posting of tweets in response to real-world inputs. Some of our favourites are the tweeting cat flap Flappy McFlapface, the tweeting dog Oliver Twitch, and of course Pi Towers resident Bert the plant. It’s interesting to see the concept turned on its head.

If you feel inspired by these projects, head on over to our resource introducing the Twitter API using Python. Or do you already have a project, in progress or finished, that uses the API? Let us know about it in the comments!

The post Tweetponic lavender: nourishing nature with the Twitter API appeared first on Raspberry Pi.

AWS Greengrass – Run AWS Lambda Functions on Connected Devices

Post Syndicated from Jeff Barr original https://aws.amazon.com/blogs/aws/aws-greengrass-run-aws-lambda-functions-on-connected-devices/

I first told you about AWS Greengrass in the post that I published during re:Invent (AWS Greengrass – Ubiquitous Real-World Computing). We launched a limited preview of Greengrass at that time and invited you to sign up if you were interested.

As I noted at the time, many AWS customers want to collect and process data out in the field, where connectivity is often slow and sometimes either intermittent or unreliable. Greengrass allows them to extend the AWS programming model to small, simple, field-based devices. It builds on AWS IoT and AWS Lambda, and supports access to the ever-increasing variety of services that are available in the AWS Cloud.

Greengrass gives you access to compute, messaging, data caching, and syncing services that run in the field, and that do not depend on constant, high-bandwidth connectivity to an AWS Region. You can write Lambda functions in Python 2.7 and deploy them to your Greengrass devices from the cloud while using device shadows to maintain state. Your devices and peripherals can talk to each other using local messaging that does not pass through the cloud.

Now Generally Available
Today we are making Greengrass generally available in the US East (Northern Virginia) and US West (Oregon) Regions. During the preview, AWS customers were able to get hands-on experience with Greengrass and to start building applications and businesses around it. I’ll share a few of these early successes later in this post.

The Greengrass Core code runs on each device. It allows you to deploy and run Lambda applications on the device, supports local MQTT messaging across a secure network, and also ensures that conversations between devices and the cloud are made across secure connections. The Greengrass Core also supports secure, over-the-air software updates, including Lambda functions. It includes a message broker, a Lambda runtime, a Thing Shadows implementation, and a deployment agent. Greengrass Core and (optionally) other devices make up a Greengrass Group. The group includes configuration data, the list of devices and the identity of the Greengrass Core, a list of Lambda functions, and a set of subscriptions that define where the messages should go. All of this information is copied to the Greengrass core devices during the deployment process.

Your Lambda functions can use APIs in three distinct SDKs:

AWS SDK for Python – This SDK allows your code to interact with Amazon Simple Storage Service (S3), Amazon DynamoDB, Amazon Simple Queue Service (SQS), and other AWS services.

AWS IoT Device SDK – This SDK (available for Node.js, Python, Java, and C++) helps you to connect your hardware devices to AWS IoT. The C++ SDK has a few extra features including access to the Greengrass Discovery Service and support for root CA downloads.

AWS Greengrass Core SDK – This SDK provides APIs that allow local invocation of other Lambda functions, publish messages, and work with thing shadows.

You can run the Greengrass Core on x86 and ARM devices that have version 4.4.11 (or newer) of the Linux kernel, with the OverlayFS and user namespace features enabled. While most deployments of Greengrass will be targeted at specialized, industrial-grade hardware, you can also run the Greengrass Core on a Raspberry Pi or an EC2 instance for development and test purposes.

For this post, I used a Raspberry Pi attached to a BrickPi, connected to my home network via WiFi:

The Raspberry Pi, the BrickPi, the case, and all of the other parts are available in the BrickPi 3 Starter Kit. You will need some Linux command-line expertise and a decent amount of manual dexterity to put all of this together, but if I did it then you surely can.

Greengrass in Action
I can access Greengrass from the Console, API, or CLI. I’ll use the Console. The intro page of the Greengrass Console lets me define groups, add Greengrass Cores, and add devices to my groups:

I click on Get Started and then on Use easy creation:

Then I name my group:

And name my first Greengrass Core:

I’m ready to go, so I click on Create Group and Core:

This runs for a few seconds and then offers up my security resources (two keys and a certificate) for downloading, along with the Greengrass Core:

I download the security resources and put them in a safe place, and select and download the desired version of the Greengrass Core software (ARMv7l for my Raspberry Pi), and click on Finish.

Now I power up my Pi, and copy the security resources and the software to it (I put them in an S3 bucket and pulled them down with wget). Here’s my shell history at that point:

Following the directions in the user guide, I create a new user and group, run the rpi-update script, and install several packages including sqlite3 and openssl. After a couple of reboots, I am ready to proceed!

Next, still following the directions, I untar the Greengrass Core software and move the security resources to their final destination (/greengrass/configuration/certs), giving them generic names along the way. Here’s what the directory looks like:

The next step is to associate the core with an AWS IoT thing. I return to the Console, click through the group and the Greengrass Core, and find the Thing ARN:

I insert the names of the certificates and the Thing ARN into the config.json file, and also fill in the missing sections of the iotHost and ggHost:

I start the Greengrass demon (this was my second attempt; I had a typo in one of my path names the first time around):

After all of this pleasant time at the command line (taking me back to my Unix v7 and BSD 4.2 days), it is time to go visual once again! I visit my AWS IoT dashboard and see that my Greengrass Core is making connections to IoT:

I go to the Lambda Console and create a Lambda function using the Python 2.7 runtime (the IAM role does not matter here):

I publish the function in the usual way and, hop over to the Greengrass Console, click on my group, and choose to add a Lambda function:

Then I choose the version to deploy:

I also configure the function to be long-lived instead of on-demand:

My code will publish messages to AWS IoT, so I create a subscription by specifying the source and destination:

I set up a topic filter (hello/world) on the subscription as well:

I confirm my settings and save my subscription and I am just about ready to deploy my code. I revisit my group, click on Deployments, and choose Deploy from the Actions menu:

I choose Automatic detection to move forward:

Since this is my first deployment, I need to create a service-level role that gives Greengrass permission to access other AWS services. I simply click on Grant permission:

I can see the status of each deployment:

The code is now running on my Pi! It publishes messages to topic hello/world; I can see them by going to the IoT Console, clicking on Test, and subscribing to the topic:

And here are the messages:

With all of the setup work taken care of, I can do iterative development by uploading, publishing, and deploying new versions of my code. I plan to use the BrickPi to control some LEGO Technic motors and to publish data collected from some sensors. Stay tuned for that post!

Greengrass Pricing
You can run the Greengrass Core on three devices free for one year as part of the AWS Free Tier. At the next level (3 to 10,000 devices) two options are available:

  • Pay as You Go – $0.16 per month per device.
  • Annual Commitment – $1.49 per year per device, a 17.5% savings.

If you want to run the Greengrass Core on more than 10,000 devices or make a longer commitment, please get in touch with us; details on all pricing models are on the Greengrass Pricing page.

Jeff;

Storm Glass: simulate the weather at your desk

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/storm-glass/

Inspired by the tempescope, The Modern Inventor’s Storm Glass is a weather-simulating lamp that can recreate the weather of any location in the world, all thanks to the help of a Raspberry Pi Zero W.

The Modern Inventors Storm Glass

Image c/o The Modern Inventor

The lamp uses the Weather Underground API, which allows the Raspberry Pi to access current and predicted weather conditions across the globe. Some may argue “Why do I need a recreation of the weather if I can look out my window?”, but I think the idea of observing tomorrow’s weather today, or keeping an eye on conditions in another location, say your favourite holiday destination, is pretty sweet.

Building a Storm Glass

The Modern Inventor, whose name I haven’t found out yet so I’ll call him TMI, designed and 3D printed the base and cap for the lamp. The glass bottle that sits between the two is one of those fancy mineral water bottles you’ve seen in the supermarket but never could justify buying before.

The base holds the Pi, as well as a speaker, a microphone, and various other components such as a Speaker Bonnet and NeoPixel Ring from Adafruit.

The Modern Inventors Storm Glass

Image c/o The Modern Inventor

“The rain maker is a tiny 5V centrifuge pump I got online, which pumps water along some glass tubing and into the lid where the rain falls from”, TMI explains on his Instructables project page. “The cloud generator is a USB-powered ultrasonic diffuser/humidifier. I just pulled out the guts and got rid of the rest. Make sure to keep the electronics which create the ultrasonic signal that drives the diffuser.”

The Modern Inventor's Storm Glass

Image c/o The Modern Inventor

With the tech in place, TMI (yes, I do appreciate the irony of using TMI as a designator for someone about whom I lack information) used hot glue like his life depended on it, bringing the whole build together into one slick-looking lamp.

Coding the storm

TMI set up the Storm Glass to pull data about weather conditions in a designated location via the Weather Underground API and recreate these within the lamp. He also installed Alexa Voice Service in it, giving the lamp a secondary function as a home automation device.

The Modern Inventor's Storm Glass

Image c/o The Modern Inventor

Code for the Storm Glass, alongside a far more detailed explanation of the build process, can be found on TMI’s project page. He says the total cost of this make comes to less than $80.

Create your own weather device

If you’d like to start using weather APIs to track conditions at home or abroad, we have a whole host of free Raspberry Pi resources for you to try your hand on: begin by learning how to fetch weather data using the RESTful API or using Scratch and the OpenWeatherMap to create visual representations of weather across the globe. You could even create a ‘Dress for the weather’ indicator so you’re never caught without a coat, an umbrella, or sunscreen again!

However you use the weather in your digital making projects, we’d love to see what you’ve been up to in the comments below.

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Raspberry Pi Looper-Synth-Drum…thing

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

To replace his iPad for live performance, Colorado-based musician Toby Hendricks built a looper, complete with an impressive internal sound library, all running on a Raspberry Pi.

Raspberry Pi Looper/synth/drum thing

Check out the guts here: https://youtu.be/mCOHFyI3Eoo My first venture into raspberry pi stuff. Running a custom pure data patch I’ve been working on for a couple years on a Raspberry Pi 3. This project took a couple months and I’m still tweaking stuff here and there but it’s pretty much complete, it even survived it’s first live show!

Toby’s build is a pretty mean piece of kit, as this video attests. Not only does it have a multitude of uses, but the final build is beautiful. Do make sure to watch to the end of the video for a wonderful demonstration of the kit.

Inside the Raspberry Pi looper

Alongside the Raspberry Pi and Behringer U-Control sound card, Toby used Pure Data, a multimedia visual programming language, and a Teensy 3.6 processor to complete the build. Together, these allow for playback of a plethora of sounds, which can either be internally stored, or externally introduced via audio connectors along the back.

This guy is finally taking shape. DIY looper/fx box/sample player/synth. #teensy #arduino #raspberrypi #puredata

98 Likes, 6 Comments – otem rellik (@otem_rellik) on Instagram: “This guy is finally taking shape. DIY looper/fx box/sample player/synth. #teensy #arduino…”

Delay, reverb, distortion, and more are controlled by sliders along one side, while pre-installed effects are selected and played via some rather beautiful SparkFun buttons on the other. Loop buttons, volume controls, and a repurposed Nintendo DS screen complete the interface.

Raspberry Pi Looper Guts

Thought I’d do a quick overview of the guts of my pi project. Seems like many folks have been interested in seeing what the internals look like.

Code for the looper can be found on Toby’s GitHub here. Make sure to continue to follow him via YouTube and Instagram for updates on the build, including these fancy new buttons.

Casting my own urethane knobs and drum pads from 3D printed molds! #3dprinted #urethanecasting #diy

61 Likes, 4 Comments – otem rellik (@otem_rellik) on Instagram: “Casting my own urethane knobs and drum pads from 3D printed molds! #3dprinted #urethanecasting #diy”

I got the music in me

If you want to get musical with a Raspberry Pi, but the thought of recreating Toby’s build is a little daunting, never fear! Our free GPIO Music Box resource will help get you started. And projects such as Mike Horne’s fabulous Raspberry Pi music box should help inspire you to take your build further.

Raspberry Pi Looper post image of Mike Horne's music box

Mike’s music box boasts wonderful flashy buttons and turny knobs for ultimate musical satisfaction!

If you use a Raspberry Pi in any sort of musical adventure, be sure to share your project in the comments below!

 

 

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“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.

Alex, Matt, and Courtney in a punt on the Cam

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.

RAF firing range sign

“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…”

You can find more information on Skycademy here, plus more detail about our test launch day in Dan’s blog post here.

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.

Letter of thanks to Raspberry Pi from a young fan

*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.

Estefannie on Twitter

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.

Jillian Ogle on Twitter

@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.

Raspberry Pi on Twitter

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

Raspberry Pi team at the Houses of Parliament

  • 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.

European Astro Pi: Mission complete

Post Syndicated from David Honess original https://www.raspberrypi.org/blog/european-astro-pi-mission-complete/

In October last year, with the European Space Agency and CNES, we launched the first ever European Astro Pi challenge. We asked students from all across Europe to write code for the flight of French ESA astronaut Thomas Pesquet to the International Space Station (ISS) as part of the Proxima mission.

The winners were announced back in March, and since then their code has been uploaded to the ISS and run in space!

Thomas Pesquet aboard the ISS with the Astro Pi units

French ESA astronaut Thomas Pesquet with the Astro Pi units. Image credit ESA.

Code from 64 student teams ran between 28 April and 10 May, supervised by Thomas, in the European Columbus module.

Astro Pi on Twitter

We can confirm student programs are finished, results are downloaded from @Space_Station and teams will receive their​ data by next week 🛰️📡

On 10 May the results, data, and log files were downloaded to the ground, and the following week they were emailed back to the student teams for analysis.

Ecole St-André d’E on Twitter

On vient de recevoir les données enregistrées par nos codes #python depuis l’ #iss @CNES @astro_pi @Thom_astro . Reste à analyser tout ça!

We’ve looked at the results, and we can see that many of the teams have been successful in their missions: congratulations to all of you! We look forward to reading your write-ups and blogs.

In pictures

In a surprise turn of events, we learnt that Thomas set up a camera to take regular pictures of the Astro Pi units for one afternoon. This was entirely voluntary on his part and was not scheduled as part of the mission. Thank you so much, Thomas!

Some lucky teams have some very nice souvenirs from the ISS. Here are a couple of them:

Astro Pi units on the ISS photographed by Thomas Pesquet

Juvara team – Italy (left) and South London Raspberry Jam – UK (right). Image credit ESA.

Astro Pi units on the ISS photographed by Thomas Pesquet

Astro Team – Italy (left) and AstroShot – Greece (right). Image credit ESA.

Until next time…

This brings the 2016/17 European Astro Pi challenge to a close. We would like to thank all the students and teachers who participated; the ESA Education, Integration and Implementation, Ground Systems, and Flight Control teams; BioTesc (ESA’s user operations control centre for Astro Pi); and especially Thomas Pesquet himself.

Thomas and Russian Soyuz commander Oleg Novitskiy return to Earth today, concluding their six-month stay on the ISS. After a three-hour journey in their Soyuz spacecraft, they will land in the Kazakh steppe at approximately 15:09 this afternoon. You can watch coverage of the departure, re-entry, and landing on NASA TV.

Astro Pi has been a hugely enjoyable project to work on, and we hope to be back in the new school year (2017-18) with brand-new challenges for teachers and students.

 

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Getting started with soldering

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/getting-started-soldering/

In our newest resource video, Content and Curriculum Manager Laura Sach introduces viewers to the basics of soldering.

Getting started with soldering

Learn the basics of how to solder components together, and the safety precautions you need to take. Find a transcript of this video in our accompanying learning resource: raspberrypi.org/learning/getting-started-with-soldering/

So sit down, grab your Raspberry Pi Zero, and prepare to be schooled in the best (and warned about the worst) practices in the realm of soldering.

Do I have to?!

Yes. Yes, you do.

If you are planning to use a Raspberry Pi Zero or Zero W, or to build something magnificent using wires, buttons, lights, and more, you’ll want to practice your soldering technique. Those of us inexperienced in soldering have been jumping for joy since the release of the Pimoroni solderless header. However, if you want to your project to progress from the ‘prototyping with a breadboard’ stage to a durable final build, soldering is the best option for connecting all its components together.

soldering raspberry pi gif

Hot glue just won’t cut it this time. Sorry.

I promise it’s not hard to do, and the final result will give you a warm feeling of accomplishment…made warmer still if, like me, you burn yourself due to your inability to pay attention to instructions. (Please pay attention to the instructions.)

Soldering 101

As Laura explains in the video, there are two types of solder to choose from for your project: the lead-free kind that requires a slightly higher temperature to melt, and the lead-containing kind that – surprise, surprise – has lead in it. Although you’ll find other types of solder, one of these two is what you want for tinkering.

soldering raspberry pi

The decision…is yours.

In order to heat your solder and apply it to your project, you’ll need either Kryptonian heat vision* or, on this planet at least, a soldering iron. There is a variety of soldering irons available on the market, and as your making skills improve you will probably upgrade. But for now, try not to break the bank and choose an iron that’s within your budget. You may also want to ask around, as someone you know might be able to lend you theirs and help you out with your first soldering attempt.

Safety first!

Make sure you always solder in a well-ventilated area. Before you start, remove any small people, four-legged friends, and other trip hazards from the space and check you have everything you need close at hand.

soldering raspberry pi

The lab at Pi Towers is well ventilated thanks to this handy ventilation pipe…thingy.

And never forget, things get hot when you heat them! Always allow a moment for cooling before you handle your wonderful soldering efforts. I remember the first time I tried soldering a button to a Raspberry Pi and…let’s just say that I still bear the scars incured because I didn’t follow my own safety advice.

Let’s do this!

Now you’re geared up and ready to solder, follow along with Laura and fit a header to your Raspberry Pi Zero! You can also read a complete transcript of the video in our free Getting started with soldering  resource.

If you use Laura’s video to help you complete a soldering project, make sure to share your final piece with us via social media using the hashtag #ThanksLauraSach.

 

 

*spoiler alert!

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Bicycle-powered Menabrea beer dispenser

Post Syndicated from Alex Bate original https://www.raspberrypi.org/blog/menabrea-beer-bike/

Cycle. Beat the on-screen pace. Receive free Menabrea beer. All on a system controlled by a Raspberry Pi.

Honestly, what’s not to like?

Menabrea UK

If you’re wondering what it takes to win an ice cold pint at one of our Race to Biella events, this clip will give you more of an idea. It’s no mean feat!! Do you think you have the pedal power? Join us tonight at The Avonbridge Hotel for sunshine, cycling and, of course, a refreshing pint or two.

Glasgow-based creative content agency Bright Signals were contacted by Wire with a brief for a pretty tasty project: create something for Menabrea that ties in with the Giro d’Italia cycle race passing close to the brewery in Biella, Northern Italy.

Cycle race, was it? Menabrea brewery, you say?

The team at Bright Signals came up with the superb idea of a bicycle-powered Menabrea beer dispenser.

It must be noted that when I said the words ‘bicycle-powered beer dispenser’ aloud in the Raspberry Pi office, many heads turned and Director of Software Engineering Gordon Hollingworth dropped everything he was doing in order to learn more.

The final build took a fortnight to pull together, with Bright Signals working on the Raspberry Pi-controlled machine and Wire in charge of its graphic design.

Menabrea Beer Bike Raspberry Pi

Cheer for beer!
Image c/o Grant Gibson and Menabrea

Reuse, reduce, return to the bar

“This was probably one of the most enjoyable builds I’ve worked on,” says Bright Signal’s Deputy Managing Director, Grant Gibson. “We had a really clear idea of what we were doing from the start, and we managed to reuse loads of parts from the donor bicycle as we simplified the bike and built the pouring system.” The team integrated the bottle cage of the donor bike into the main dispensing mechanism, and the bike’s brake levers now cradle a pint glass at the perfect angle for pouring.

A Raspberry Pi powers the 24″ screen atop the beer dispenser, as well as the buttons, pouring motors, and lights.

Menabrea Beer Bike Raspberry Pi

Perfect size for the Raspberry Pi lobby!
Image c/o Grant Gibson

Giro di Scozia

Fancy trying Menabrea’s bicycle-powered beer dispenser for yourself? The final stop of its 4-week tour will be the Beer Cafe in Glasgow this Friday 2nd June. If you make it to the event, be sure to share your photos and video with us in the comments below, or via our social media channels such as Twitter, Facebook, and Instagram. And if you end up building your own beer-dispensing cycle, definitely write up a tutorial for the project! We know at least one person who is keenly interested…

Menabrea on Twitter

Another successful racer wins a pint of Menabrea in the #racetobiella. The bike’s at The Fox and Hound, Houston today…

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