Organise your life with the help of a Raspberry Pi, a 3.5″ touchscreen, Google Tasks, and hackster.io user Michal Sporna.
Distracting baby optional, though advised.
Baby – in the workplace – thought you ought to know
There’s a baby in the office today. And, as babies tend to do in places of work, he’s stolen all of our attention away from what we’re meant to be doing (our jobs), and has redirected it for the greater good (keeping him entertained). Oh, baby!
If only I had a to-do list to keep all my day’s tasks in plain sight and constantly remind myself of what I should be doing (writing this blog post) instead of what I’m actually doing (naming all the kittens on my T-shirt with the help of a nine-month-old)!
Sorry, the baby just came over to my desk and stole my attention again. Where was I?
Michal Sporna‘s interactive to-do list that syncs with Google Tasks consists of a Raspberry Pi 3 Model B and a 3.5″ touchscreen encased in a laser-cut wooden housing, though this last element is optional.
“This is yet another web to-do app, but designed for a 3.5″ screen and Raspberry Pi,” says Michal in the introduction to his hackster.io tutorial. “The idea is for this device to serve as task tracking device, replacing a regular notebook and having to write stuff with pen.”
Michal explains that, while he enjoys writing down tasks on paper, editing items on paper isn’t that user-friendly. By replacing pen and paper with stylus and touchscreen, and making use Google Tasks, he improved the process for himself.
The Google Tasks platform allows you to record and edit tasks, and to share them across multiple devices. The app integrates nicely with Gmail and Google Calendar, and its browser functionality allowed Michal to auto-run it on Chromium in Raspbian, so his tasks automatically display on the touchscreen. #NotSponsored
Michael Portera‘s trading card scanner uses LEGO, servo motors, and a Raspberry Pi and Camera Module to scan Magic: The Gathering cards and look up their prices online. This is a neat and easy-to-recreate project that you can adapt for whatever your, or your younger self’s, favourite trading cards are.
For those of you who aren’t this nerdy [Janina is 100% this nerdy – Ed.], Magic: The Gathering (or MTG for short) is a trading card game first launched in 1993. It’s based on a sprawling fantasy multiverse storyline, and is very heavy on mechanics — the current comprehensive rules fill 228 pages! You can imagine it as being a bit like Dungeons and Dragons, with less role-playing and more of a chess vibe. Unlike in chess, however, you can beat your MTG opponent in one turn with just the right combination of cards. If that’s your style of play, that is.
Scanning trading cards
So far, there are around 20000 official MTG cards, and, as with other types of trading cards, some of them are worth a lot of money.
Michael is one of the many people who were keen MTG players in their youth. Here’s how he came up with his project idea:
I was really into trading cards as a kid. I recently came across a lot of Magic: The Gathering cards in a box and thought to myself — I wonder how many cards I have and how much they’re worth?! Logging and looking these up manually would take a while, so I decided to see if I could automate some of the process. Somehow, the process led to building a platform out of Lego and leveraging AWS S3 and Rekognition.
LEGO, servos and camera
To build the housing of the scanner, Michael used LEGO, stating “I’m not good at wood working, and I thought that it might be rough on the cards.” While he doesn’t provide a build plan for the housing, Michael only used bricks from in the LEGO Medium Creative Brick Box he bought for the project. In addition, his tutorial includes a lot of pictures to guide you.
Servo motors spin plastic wheels to move single cards from a stack set into the scanner. Michael positioned a Raspberry Pi Camera Module so that it can take a picture of the title of each card as it is set before the lens. The length of the camera’s ribbon cable gave Michael a little difficulty, so he recommends getting an extension for it if you’re planning to recreate the build.
Optical character recognition and MTG card price API
On the software side, Michael wrote three scripts. One is a Python script to control the servos and take pictures. This, he says, “[records] about 20–25 cards a minute.”
Another script identifies the cards and looks up their prices automatically. Michael tried out OpenCV and Tesseract for optical character recognition (OCR) first, before settling on AWS S3 and Rekognition for storing and processing images, respectively. You’ll need an AWS account to do this — Michael used the free tier, which he says allows him to process 5000 pictures per month.
A sizeable collection
Finally, the data that Rekognition sends back gets processed by another Python script that looks up the identified cards on the TCGplayer API to find their price.
Michael says he’s very satisfied with the accuracy of the project’s OCR. He found out that the 920 Magic: The Gathering cards he scanned are worth about $275 in total. He provides a full write-up plus code over on hackster.io.
And for my next trick…
You might be thinking what I’m thinking: the logical next step for this project is to turn it into a card sorter. Then you could input a list of the card deck you want to put together, and presto! The device picks out the right cards from your collection. Building a Commander deck just became a little easier!
What trading cards would you use this project with, and how would you extend it? Also, what’s your favourite commander? Let me know in the comments!
If your day has been a little fraught so far, watch this video. It opens with a tableau of methodically laid-out components and then shows them soldered, screwed, and slotted neatly into place. Everything fits perfectly; nothing needs percussive adjustment. Then it shows us glimpses of an AR future just like the one promised in the less dystopian comics and TV programmes of my 1980s childhood. It is all very soothing, and exactly what I needed.
Transform any surface into mixed-reality using Raspberry Pi, a laser projector, and Android Things. Android Experiments – http://experiments.withgoogle.com/android/lantern Lantern project site – http://nordprojects.co/lantern check below to make your own ↓↓↓ Get the code – https://github.com/nordprojects/lantern Build the lamp – https://www.hackster.io/nord-projects/lantern-9f0c28
Creating augmented reality with projection
We’ve seen plenty of Raspberry Pi IoT builds that are smart devices for the home; they add computing power to things like lights, door locks, or toasters to make these objects interact with humans and with their environment in new ways. Nord Projects‘ Lantern takes a different approach. In their words, it:
imagines a future where projections are used to present ambient information, and relevant UI within everyday objects. Point it at a clock to show your appointments, or point to speaker to display the currently playing song. Unlike a screen, when Lantern’s projections are no longer needed, they simply fade away.
Lantern is set up so that you can connect your wireless device to it using Google Nearby. This means there’s no need to create an account before you can dive into augmented reality.
Your own open-source AR lamp
Nord Projects collaborated on Lantern with Google’s Android Things team. They’ve made it fully open-source, so you can find the code on GitHub and also download their parts list, which includes a Pi, an IKEA lamp, an accelerometer, and a laser projector. Build instructions are at hackster.io and on GitHub.
This is a particularly clear tutorial, very well illustrated with photos and GIFs, and once you’ve sourced and 3D-printed all of the components, you shouldn’t need a whole lot of experience to put everything together successfully. Since everything is open-source, though, if you want to adapt it — for example, if you’d like to source a less costly projector than the snazzy one used here — you can do that too.
The instructions walk you through the mechanical build and the wiring, as well as installing Android Things and Nord Projects’ custom software on the Raspberry Pi. Once you’ve set everything up, an accelerometer connected to the Pi’s GPIO pins lets the lamp know which surface it is pointing at. A companion app on your mobile device lets you choose from the mini apps that work on that surface to select the projection you want.
The designers are making several mini apps available for Lantern, including the charmingly named Space Porthole: this uses Processing and your local longitude and latitude to project onto your ceiling the stars you’d see if you punched a hole through to the sky, if it were night time, and clear weather. Wouldn’t you rather look at that than deal with the ant problem in your kitchen or tackle your GitHub notifications?
What would you like to project onto your living environment? Let us know in the comments!
Some gaming consoles make it easy to stream to Twitch, some gaming consoles don’t (come on, Nintendo). So for those that don’t, I’ve made this beta version of the “Twitch-O-Matic”. No it doesn’t chop onions or fold your laundry, but what it DOES do is stream anything with HDMI output to your Twitch channel with the simple push of a button!
eSports and online game streaming
Interest in eSports has skyrocketed over the last few years, with viewership numbers in the hundreds of millions, sponsorship deals increasing in value and prestige, and tournament prize funds reaching millions of dollars. So it’s no wonder that more and more gamers are starting to stream live to online platforms in order to boost their fanbase and try to cash in on this growing industry.
Streaming to Twitch
Launched in 2011, Twitch.tv is an online live-streaming platform with a primary focus on video gaming. Users can create accounts to contribute their comments and content to the site, as well as watching live-streamed gaming competitions and broadcasts. With a staggering fifteen million daily users, Twitch is accessible via smartphone and gaming console apps, smart TVs, computers, and tablets. But if you want to stream to Twitch, you may find yourself using third-party software in order to do so. And with more buttons to click and more wires to plug in for older, app-less consoles, streaming can get confusing.
Side note: we Tinkernut
We’ve featured Tinkernut a few times on the Raspberry Pi blog – his tutorials are clear, his projects are interesting and useful, and his live-streamed comment videos for every build are a nice touch to sharing homebrew builds on the internet.
So, yes, we love him. [This is true. Alex never shuts up about him. – Ed.] And since he has over 500K subscribers on YouTube, we’re obviously not the only ones. We wave our Tinkernut flags with pride.
The Raspberry Pi Zero W is connected to the HDMI to CSI adapter via the camera connector, in the same way you’d attach the camera ribbon. Tinkernut uses a standard Raspbian image on an 8GB SD card, with SSH enabled for remote access from his laptop. He uses the simple command Raspivid to test the HDMI connection by recording ten seconds of video footage from his console.
One lead is all you need
Once you have the Pi receiving video from your console, you can connect to Twitch using your Twitch stream key, which you can find by logging in to your account at Twitch.tv. Tinkernut’s tutorial gives you all the commands you need to stream from your Pi.
To up the aesthetic impact of your project, adding buttons and backlights is fairly straightforward.
Pretty LED frills
To run the stream command, Tinketnut uses a button: press once to start the stream, press again to stop. Pressing the button also turns on the LED backlight, so it’s obvious when streaming is in progress.
For the full code and 3D-printable case STL file, head to Tinketnut’s hackster.io project page. And if you’re already using a Raspberry Pi for Twitch streaming, share your build setup with us. Cheers!
SPECIAL NOTE*** THE FULL TUTORIAL WILL BE AVAILABLE NEXT WEEK April Fools! What a terrible day. So many pranks. You can’t believe anything you read. People invading your space. The mental and physical anguish of enduring the day. It’s time to fight back! Let’s catch the perps in action by making a device that always watches.
A Raspberry Pi Zero W, a small camera, and a rechargeable Lithium Polymer (LiPo) battery constitute the bulk of this project’s tech. A pair of 3D-printed parts, and gelatine-solidified Coke Zero make up the fake fizzy body.
“So let’s make this video as short as possible and just buy a cheap pre-made spy cam off of Amazon. Just kidding,” Tinkernut jokes in the tutorial video for the project, before going through the step-by-step process of using the Raspberry Pi to “DIY this the right way”.
After accessing the Zero W from his laptop via SSH, Tinkernut opted for using the rpi_camera_surveillance_system Python script written by GitHub user RuiSantosdotme to control the spy cam. Luckily, this meant no additional library setup, and basically no lag on the video feed.
What we want to do is create a script that activates the camera and serves it to a web page so that we can access it from any web browser. There are plenty of different ways to do this (Motion, Raspivid, etc), but I found a simple Python script that does everything I need it to do and doesn’t require any extra software or libraries to install. The best thing about it is that the lag time is practically unnoticeable.
With the code in place, every boot-up of the Raspberry Pi automatically launches both the script and a web page of the live video, allowing for constant monitoring of potential sneaks and thieves.
The projects is powered by a 1500mAh LiPo battery and the Adafruit LiPo charger. It also includes a simple on/off switch, which Tinkernut wired to the charger and the Pi’s PP1 and PP6 connector pads.
Tinkernut decided to use a Coke Zero bottle for the build, incorporating 3D-printed parts to house the Pi, and a mix of Coke and gelatine to create a realistic-looking filling for the bottle. However, the setup can be transferred to pretty much any hollow item in your home, say, a cookie jar or a cracker box. So get creative and get spying!
A complete spy cam how-to
If you’d like to make your own secret spy cam, you can find a tutorial for Tinkernut’s build at hackster.io, or follow along with his video below. Also make sure to subscribe his YouTube channel to be updated on all his newest builds — they’re rather splendid.
Learn how to take a regular Coke Zero bottle, cram a Raspberry Pi and webcam inside of it, and have it still look like a regular Coke Zero bottle. Why would you want to do this? To spy on those irritating April Fooligans!!!
Spring has sprung, and with it, sleepy-eyed wildlife is beginning to roam our gardens and local woodlands. So why not follow hackster.io maker reichley’s tutorial and build your own solar-powered squirrelhouse nature cam?
“I live half a mile above sea level and am SURROUNDED by animals…bears, foxes, turkeys, deer, squirrels, birds”, reichley explains in his tutorial. “Spring has arrived, and there are LOADS of squirrels running around. I was in the building mood and, being a nerd, wished to combine a common woodworking project with the connectivity and observability provided by single-board computers (and their camera add-ons).”
Building a tiny home
reichley started by sketching out a design for the house to determine where the various components would fit.
Since he’s fan of autonomy and renewable energy, he decided to run the project’s Raspberry Pi Zero W via solar power. To do so, he reiterated the design to include the necessary tech, scaling the roof to fit the panels.
To keep the project running 24/7, reichley had to figure out the overall power consumption of both the Zero W and the Raspberry Pi Camera Module, factoring in the constant WiFi connection and the sunshine hours in his garden.
He used a LiPo SHIM to bump up the power to the required 5V for the Zero. Moreover, he added a BH1750 lux sensor to shut off the LiPo SHIM, and thus the Pi, whenever it’s too dark for decent video.
To control the project, he used Calin Crisan’s motionEyeOS video surveillance operating system for single-board computers.
Unless you’ve been AFK for the last two days, you’ll no doubt be aware of the release of the brand-spanking-new Raspberry Pi 3 Model B+. With faster connectivity, more computing power, Power over Ethernet (PoE) pins, and the same $35 price point, the new board has been a hit across all our social media accounts! So while we wind down from launch week, let’s all pull up a chair, make yet another cup of coffee, and look through some of our favourite reactions from the last 48 hours.
Our Twitter mentions were refreshing at hyperspeed on Wednesday, as you all began to hear the news and spread the word about the newest member to the Raspberry Pi family.
This sort of attention to detail work is exactly what I love about being involved with @Raspberry_Pi. We’re squeezing the last drops of performance out of the 40nm process node, and perfecting Pi 3 in the same way that the original B+ perfected Pi 1.” https://t.co/hEj7JZOGeZ
And I think we counted about 150 uses of this GIF on Twitter alone:
Is something going on with the @Raspberry_Pi today? You’d never guess from my YouTube subscriptions page… 😀
A few members of our community were lucky enough to get their hands on a 3B+ early, and sat eagerly by the YouTube publish button, waiting to release their impressions of our new board to the world. Others, with no new Pi in hand yet, posted reaction vids to the launch, discussing their plans for the upgraded Pi and comparing statistics against its predecessors.
Happy Pi Day World! There is a new Raspberry Pi 3, the B+! In this video I will review the new Pi 3 B+ and do some speed tests. Let me know in the comments if you are getting one and what you are planning on making with it!
It’s Pi day! Sorry, wondrous Mathematical constant, this day is no longer about you. The Raspberry Pi foundation just released a new version of the Raspberry Pi called the Rapsberry Pi B+.
If you have a YouTube or Vimeo channel, or if you create videos for other social media channels, and have published your impressions of the new Raspberry Pi, be sure to share a link with us so we can see what you think!
We shared a few photos and videos on Instagram, and over 30000 of you checked out our Instagram Story on the day.
5,609 Likes, 103 Comments – Raspberry Pi (@raspberrypifoundation) on Instagram: “Some glamour shots of the latest member of the #RaspberryPi family – the Raspberry Pi 3 Model B+ ….”
As hot off the press (out of the oven? out of the solder bath?) Pi 3B+ boards start to make their way to eager makers’ homes, they are all broadcasting their excitement, and we love seeing what they plan to get up to with it.
On a day where science is making the headlines, lovely to see the scientists of the future in our office – getting tips from fab @Raspberry_Pi founder @EbenUpton #scientists #RaspberryPi #PiDay2018 @sirissac6thform
Principal Hardware Engineer Roger Thornton will also make a live appearance online this week: he is co-hosting Hack Chat later today. And of course, you can see more of Roger and Eben in the video where they discuss the new 3B+.
Raspberry Pi 3 Model B+ is now on sale now for $35.
It’s been a supremely busy week here at Pi Towers and across the globe in the offices of our Approved Resellers, and seeing your wonderful comments and sharing in your excitement has made it all worth it. Please keep it up, and be sure to share the arrival of your 3B+ as well as the projects into which you’ll be integrating them.
A robot pet is the dream of many a child, thanks to creatures such as K9, Doctor Who’s trusted companion, and the Tamagotchi, bleeping nightmare of parents worldwide. But both of these pale in comparison (sorry, K9) to Petoi, the walking, meowing, live-streaming cat from maker Rongzhong Li.
Mentioned on IEEE Spectrum: https://spectrum.ieee.org/automaton/robotics/humanoids/video-friday-boston-dynamics-spotmini-opencat-robot-engineered-arts-mesmer-uncanny-valley More reads on Hackster: https://www.hackster.io/petoi/opencat-845129 优酷： http://v.youku.com/v_show/id_XMzQxMzA1NjM0OA==.html?spm=a2h3j.8428770.3416059.1 We are developing programmable and highly maneuverable quadruped robots for STEM education and AI-enhanced services. Its compact and bionic design makes it the only affordable consumer robot that mimics various mammal gaits and reacts to surroundings.
Not only have cats conquered the internet, they also have a paw firmly in the door of many makerspaces and spare rooms — rooms such as the one belonging to Petoi’s owner/maker, Rongzhong Li, who has been working on this feline creation since he bought his first Raspberry Pi.
Petoi in its current state – apple for scale in lieu of banana
Petoi is just like any other housecat: it walks, it plays, its ribcage doubles as a digital xylophone — but what makes Petoi so special is Li’s use of the project as a platform for study.
I bought my first Raspberry Pi in June 2016 to learn coding hardware. This robot Petoi served as a playground for learning all the components in a regular Raspberry Pi beginner kit. I started with craft sticks, then switched to 3D-printed frames for optimized performance and morphology.
Various iterations of Petoi have housed various bits of tech, 3D-printed parts, and software, so while it’s impossible to list the exact ingredients you’d need to create your own version of Petoi, a few components remain at its core.
An early version of Petoi, housed inside a plastic toy helicopter frame
A Raspberry Pi lives within Petoi and acts as its brain, relaying commands to an Arduino that controls movement. Li explains:
The Pi takes no responsibility for controlling detailed limb movements. It focuses on more serious questions, such as “Who am I? Where do I come from? Where am I going?” It generates mind and sends string commands to the Arduino slave.
Li is currently working on two functional prototypes: a mini version for STEM education, and a larger version for use within the field of AI research.
You can read more about the project, including details on the various interactions of Petoi, on the hackster.io project page.
See how we built it, including our materials, code, and supplemental instructions, on Hackster.io: https://www.hackster.io/hackerhouse/automated-indoor-gardener-a90907 With how busy our lives are, it’s sometimes easy to forget to pay a little attention to your thirsty indoor plants until it’s too late and you are left with a crusty pile of yellow carcasses.
Building an automated gardener
Tired of their plants looking a little too ‘crispy’, Hacker House have created an automated gardener using a Raspberry Pi Zero W alongside some 3D-printed parts, a 5v USB grow light, and a peristaltic pump.
They designed and 3D printed a PLA casing for the project, allowing enough space within for the Raspberry Pi Zero W, the pump, and the added electronics including soldered wiring and two N-channel power MOSFETs. The MOSFETs serve to switch the light and the pump on and off.
Due to the amount of power the light and pump need, the team replaced the Pi’s standard micro USB power supply with a 12v switching supply.
Raspberry Pis make great babysitters for your favourite plants, both inside and outside your home. Here at Pi Towers, we have Bert, our Slack- and Twitter-connected potted plant who reminds us when he’s thirsty and in need of water.
Note: the Pi Towers team have peeled away from their desks to spend time with their families over the festive season, and this blog will be quiet for a while as a result. We’ll be back in the New Year with a bushel of amazing projects, awesome resources, and much merriment and fun times. Happy holidays to all!
Now back to the matter at hand. Your brand new Christmas Raspberry Pi.
Your new Raspberry Pi
Did you wake up this morning to find a new Raspberry Pi under the tree? Congratulations, and welcome to the Raspberry Pi community! You’re one of us now, and we’re happy to have you on board.
But what if you’ve never seen a Raspberry Pi before? What are you supposed to do with it? What’s all the fuss about, and why does your new computer look so naked?
Setting up your Raspberry Pi
Are you comfy? Good. Then let us begin.
Download our free operating system
First of all, you need to make sure you have an operating system on your micro SD card: we suggest Raspbian, the Raspberry Pi Foundation’s official supported operating system. If your Pi is part of a starter kit, you might find that it comes with a micro SD card that already has Raspbian preinstalled. If not, you can download Raspbian for free from our website.
An easy way to get Raspbian onto your SD card is to use a free tool called Etcher. Watch The MagPi’s Lucy Hattersley show you what you need to do. You can also use NOOBS to install Raspbian on your SD card, and our Getting Started guide explains how to do that.
Plug it in and turn it on
Your new Raspberry Pi 3 comes with four USB ports and an HDMI port. These allow you to plug in a keyboard, a mouse, and a television or monitor. If you have a Raspberry Pi Zero, you may need adapters to connect your devices to its micro USB and micro HDMI ports. Both the Raspberry Pi 3 and the Raspberry Pi Zero W have onboard wireless LAN, so you can connect to your home network, and you can also plug an Ethernet cable into the Pi 3.
Make sure to plug the power cable in last. There’s no ‘on’ switch, so your Pi will turn on as soon as you connect the power. Raspberry Pi uses a micro USB power supply, so you can use a phone charger if you didn’t receive one as part of a kit.
Learn with our free projects
If you’ve never used a Raspberry Pi before, or you’re new to the world of coding, the best place to start is our projects site. It’s packed with free projects that will guide you through the basics of coding and digital making. You can create projects right on your screen using Scratch and Python, connect a speaker to make music with Sonic Pi, and upgrade your skills to physical making using items from around your house.
Here’s James to show you how to build a whoopee cushion using a Raspberry Pi, paper plates, tin foil and a sponge:
Explore the world of Raspberry Pi physical computing with our free FutureLearn courses: http://rpf.io/futurelearn Free make your own Whoopi Cushion resource: http://rpf.io/whoopi For more information on Raspberry Pi and the charitable work of the Raspberry Pi Foundation, including Code Club and CoderDojo, visit http://rpf.io Our resources are free to use in schools, clubs, at home and at events.
You’ve plundered our projects, you’ve successfully rigged every chair in the house to make rude noises, and now you want to dive deeper into digital making. Good! While you’re digesting your Christmas dinner, take a moment to skim through the Raspberry Pi blog for inspiration. You’ll find projects from across our worldwide community, with everything from home automation projects and retrofit upgrades, to robots, gaming systems, and cameras.
You’ll also find bucketloads of ideas in The MagPi magazine, the official monthly Raspberry Pi publication, available in both print and digital format. You can download every issue for free. If you subscribe, you’ll get a Raspberry Pi Zero W to add to your new collection. HackSpace magazine is another fantastic place to turn for Raspberry Pi projects, along with other maker projects and tutorials.
And, of course, simply typing “Raspberry Pi projects” into your preferred search engine will find thousands of ideas. Sites like Hackster, Hackaday, Instructables, Pimoroni, and Adafruit all have plenty of fab Raspberry Pi tutorials that they’ve devised themselves and that community members like you have created.
If you make something marvellous with your new Raspberry Pi – and we know you will – don’t forget to share it with us! Our Twitter, Facebook, Instagram and Google+ accounts are brimming with chatter, projects, and events. And our forums are a great place to visit if you have questions about your Raspberry Pi or if you need some help.
It’s good to get together with like-minded folks, so check out the growing Raspberry Jam movement. Raspberry Jams are community-run events where makers and enthusiasts can meet other makers, show off their projects, and join in with workshops and discussions. Find your nearest Jam here.
In his Christmas lights project, Caleb Johnson uses an app as a control panel to switch between predefined displays. The full code is available on his GitHub, and it connects a Raspberry Pi A+ to a strip of programmable LEDs that change their pattern at the touch of a phone screen.
What’s great about this project, aside from the simplicity of its design, is the scope for extending it. Why not share the app with friends and family, allowing them to control your lights remotely? Or link the lights to social media so they are triggered by a specific hashtag, like in Alex Ellis’ #cheerlights project below.
Here we have a smart holiday light which will only run when it detects your presence in the room through a passive infrared PIR sensor. I’ve used hot glue for the fixings and an 8-LED NeoPixel strip connected to port 18.
Cheerlights, an online service created by Hans Scharler, allows makers to incorporate hashtag-controlled lighting into the projects. By tweeting the hashtag #cheerlights, followed by a colour, you can control a network of lights so that they are all displaying the same colour.
For his holiday light hack using Cheerlights, Alex incorporated the Pimoroni Blinkt! and a collection of cheap Christmas decorations to create cute light-up ornaments for the festive season.
To make your own, check out Alex’s blog post, and head to your local £1/$1 store for hackable decor. You could even link your Christmas tree and the trees of your family, syncing them all in one glorious, Santa-pleasing spectacular.
With just a few bucks of extra material, I walk you through converting your regular Christmas lights into a whole-house light show. The goal here is to go from scratch. Although this guide is intended for people who don’t know how to use linux at all and those who do alike, the focus is for people for whom linux and the raspberry pi are a complete mystery.
Looking to outdo your neighbours with your Christmas light show this year? YouTuber Makin’Things has created a beginners guide to setting up a Raspberry Pi–based musical light show for your facade, complete with information on soldering, wiring, and coding.
Once you’ve wrapped your house in metres and metres of lights and boosted your speakers so they can be heard for miles around, why not incorporate #cheerlights to make your outdoor decor interactive?
Still not enough? How about controlling your lights using a drum kit? Christian Kratky’s MIDI-Based Christmas Lights Animation system (or as I like to call it, House Rock) does exactly that.
Project documentation and source code: https://www.hackster.io/cyborg-titanium-14/light-pi-1c88b0 The song is taken from: https://www.youtube.com/watch?v=G6r1dAire0Y
We know these projects are just the tip of the iceberg when it comes to the Raspberry Pi–powered Christmas projects out there, and as always, we’d love you to share yours with us. So post a link in the comments below, or tag us on social media when posting your build photos, videos, and/or blog links. ‘Tis the season for sharing after all.
When James Puderer moved to Lima, Peru, his roadside runs left a rather nasty taste in his mouth. Hit by the pollution from old diesel cars in the area, he decided to monitor the air quality in his new city using Raspberry Pis and the abundant taxies as his tech carriers.
With the onboard tech, the device collects data on longitude, latitude, humidity, temperature, pressure, and airborne particle count, feeding it back to an Android Things datalogger. This data is then pushed to Google IoT Core, where it can be remotely accessed.
Next, the data is processed by Google Dataflow and turned into a BigQuery table. Users can then visualize the collected measurements. And while James uses Google Maps to analyse his data, there are many tools online that will allow you to organise and study your figures depending on what final result you’re hoping to achieve.
James hopped in a taxi and took his monitor on the road, collecting results throughout the journey
James has provided the complete build process, including all tech ingredients and code, on his Hackster.io project page, and urges makers to create their own air quality monitor for their local area. He also plans on building upon the existing design by adding a 12V power hookup for connecting to the taxi, functioning lights within the sign, and companion apps for drivers.
Sensing the world around you
We’ve seen a wide variety of Raspberry Pi projects using sensors to track the world around us, such as Kasia Molga’s Human Sensor costume series, which reacts to air pollution by lighting up, and Clodagh O’Mahony’s Social Interaction Dress, which she created to judge how conversation and physical human interaction can be scored and studied.
Kasia Molga’s Human Sensor — a collection of hi-tech costumes that react to air pollution within the wearer’s environment.
Many people also build their own Pi-powered weather stations, or use the Raspberry Pi Oracle Weather Station, to measure and record conditions in their towns and cities from the roofs of schools, offices, and homes.
Have you incorporated sensors into your Raspberry Pi projects? Share your builds in the comments below or via social media by tagging us.
Find all the code and materials on: https://www.hackster.io/hackerhouse/holographic-audio-visualizer-with-motion-control-e72fee A 3D holographic audio visualizer with gesture control can definitely spice up your party and impress your friends. This display projects an image from a monitor down onto an acrylic pyramid, or “frustum”, which then creates a 3D effect.
Homemade holographic visualiser
You may have seen a similar trick for creating holograms in this tutorial by American Hacker:
Who will know that from plastic cd case we can make mini 3d hologram generator and you can watch 3d videos without glasses.
The illusion works due to the way in which images reflect off a flat-topped pyramid or frustum, to use its proper name. In the wonderful way they always do, the residents of Hacker House have now taken this trick one step further.
The Hacker House upgrade
Using an LCD monitor, 3D-printed parts, a Raspberry Pi, and a Flick board, the Hacker House team has produced a music visualiser truly worthy of being on display.
The Pi Supply Flick is a 3D-tracking and gesture board for your Raspberry Pi, enabling you to channel your inner Jedi and control devices with a mere swish of your hand. As the Hacker House makers explain, in this music player project, there are various ways in which you could control the playlist, visualisation, and volume. However, using the Flick adds a wow-factor that we highly approve of.
The music and visualisations are supplied by a Mac running node.js. As the Raspberry Pi is running on the same network as the Mac, it can communicate with the it via HTTP requests.
The Pi processes incoming commands from the Flick board, and in response send requests to the Mac. Swipe upward above the Flick board, for example, and the Raspberry Pi will request a change of visualisation. Swipe right, and the song will change.
As for the hologram itself, it is formed on an acrylic pyramid sitting below an LCD screen. Images on the screen reflect off the three sides of the pyramid, creating the illusion of a three-dimensional image within. Standard hocus pocus trickery.
Full details on the holographic visualiser, including the scripts, can be found on the hackster.io project page. And if you make your own, we’d love to see it.
Using ideas from this Hacker House build and the American Hacker tutorial, our maker community is bound to create amazing things with the Raspberry Pi, holograms, and tricks of the eye. We’re intrigued to see what you come up with!
After making a delightful Bitcoin lottery using a Raspberry Pi, Sean Hodgins brings us more Pi-powered goodness in time for every maker’s favourite holiday: Easter! Just kidding, it’s Halloween. Check out his hair-raising new build, the Haunted Jack in the Box.
This project uses a raspberry pi and face detection using the pi camera to determine when someone is looking at it. Plenty of opportunities to scare people with it. You can make your own!
Imagine yourself wandering around a dimly lit house. Your eyes idly scan a shelf. Suddenly, out of nowhere, a twangy melody! What was that? You take a closer look…there seems to be a box in jolly colours…with a handle that’s spinning by itself?!
You freeze, unable to peel your eyes away, and BAM!, out pops a maniacally grinning clown. You promptly pee yourself. Happy Halloween, courtesy of Sean Hodgins.
Eerie disembodied voice: You’re welco-o-o-ome!
How has Sean built this?
Sean purchased a jack-in-the-box toy and replaced its bottom side with one that would hold the necessary electronic components. He 3D-printed this part, but says you could also just build it by hand.
The bottom of the box houses a Raspberry Pi 3 Model B and a servomotor which can turn the windup handle. There’s also a magnetic reed switch which helps the Pi decide when to trigger the Jack. Sean hooked up the components to the Pi’s GPIO pins, and used an elastic band as a drive belt to connect the pulleys on the motor and the handle.
Sean explains that he has used a lot of double-sided tape and superglue in this build. The bottom and top are held together with two screws, because, as he describes it, “the Jack coming out is a little violent.”
But if I explain it, it won’t be scary anymore! OK, fiiiine.
With the help of a a Camera Module and OpenCV, Sean implemented facial recognition: Jack knows when someone is looking at his box, and responds by winding up and popping out.
Testing the haunting script
Sean’s Python script is available here, but as he points out, there are many ways in which you could adapt this code, and the build itself, to be even more frightening.
So very haunted
What would you do with this build? Add creepy laughter? Soundbites from It? Lighting effects? Maybe even infrared light and a NoIR Camera Module, so that you can scare people in total darkness? There are so many possibilities for this project — tell us your idea in the comments.
So when Michael Darby’s latest PUBG-inspired Game Boy build appeared in my notifications last week, I squealed with excitement and quickly sent the link to my team…while drinking a cocktail by a pool in Turkey ☀️
For those unfamiliar with the game: PlayerUnknown’s Battlegrounds, or PUBG for short, is a Battle-Royale-style multiplayer online video game in which individuals or teams fight to the death on an island map. As players collect weapons, ammo, and transport, their ‘safe zone’ shrinks, forcing a final face-off until only one character remains.
The game has been an astounding success on Steam, the digital distribution platform which brings PUBG to the masses. It records daily player counts of over a million!
Yeah, I’d say one or two people seem to enjoy it!
PUBG on a Game Boy?!
As it’s a fairly complex game, let’s get this out of the way right now: no, Michael is not running the entire game on a Nintendo Game Boy. That would be magicsilly impossible. Instead, he’s streaming the game from his home PC to a Raspberry Pi Zero W fitted within the hacked handheld console.
Michael removed the excess plastic inside an old Game Boy Color shell to make space for a Zero W, LiPo battery, and TFT screen. He then soldered the necessary buttons to GPIO pins, and wrote a Python script to control them.
The maker battleground
The full script can be found here, along with a more detailed tutorial for the build.
In order to stream PUBG to the Zero W, Michael uses the open-source NVIDIA steaming service Moonlight. He set his PC’s screen resolution to 800×600 and its frame rate to 30, so that streaming the game to the TFT screen works perfectly, albeit with no sound.
The end result is a rather impressive build that has confused YouTube commenters since he uploaded footage for it last week. The video has more than 60000 views to date, so it appears we’re not the only ones impressed with Michael’s make.
If you’re a regular reader of our blog, you may recognise Michael’s name from his recent Nerf blaster mod. And fans of Raspberry Pi may also have seen his Pi-powered Windows 98 wristwatch earlier in the year. He blogs at 314reactor, where you can read more about his digital making projects.
Player Two has entered the game
Now it’s your turn. Have you used a Raspberry Pi to create a gaming system? I’m not just talking arcades and RetroPie here. We want to see everything, from Pi-powered board games to tech on the football field.
Share your builds in the comments below and while you’re at it, what game would you like to stream to a handheld device?
Using a Raspberry Pi, an Arduino, an Adafruit NeoPixel Ring and a servomotor, Japanese makers HomeMadeGarbage produced this Pronunciation Training Machine to help their parents distinguish ‘L’s and ‘R’s when speaking English.
23 Likes, 1 Comments – Home Made Garbage (@homemadegarbage) on Instagram: “L R 発音矯正ギブス お母ちゃん編 Pronunciation training machine #right #light #raspberrypi #arduino #neopixel”
How does an Pronunciation Training Machine work?
As you can see in the video above, the machine utilises the Google Cloud Speech API to recognise their parents’ pronunciation of the words ‘right’ and ‘light’. Correctly pronounce the former, and the servo-mounted arrow points to the right. Pronounce the later and the NeoPixel Ring illuminates because, well, you just said “light”.
You can find the full code for the project on its hackster page here.
Variations on the idea
It’s a super-cute project with great potential, and the concept could easily be amended for other training purposes. How about using motion sensors to help someone learn their left from their right?
Or use random.choice to switch on LEDs over certain images, and speech recognition to reward a correct answer? Light up a picture of a cat, for example, and when the player says “cat”, they receive a ‘purr’ or a treat?
Obligatory kitten picture image c/o somewhere on the internet!
Raspberry Pi-based educational aids do not have to be elaborate builds. They can use components as simple as a servo and an LED, and still have the potential to make great improvements in people’s day-to-day lives.
Your own projects
If you’ve created an educational tool using a Raspberry Pi, we’d love to see it. The Raspberry Pi itself is an educational tool, so you’re helping it to fulfil its destiny! Make sure you share your projects with us on social media, or pop a link in the comments below. We’d also love to see people using the Pronunciation Training Machine (or similar projects), so make sure you share those too!
A massive shout out to Artie at hackster.io for this heads-up, and for all the other Raspberry Pi projects he sends my way. What a star!
The modest dimensions of our Raspberry Pi Zero and its wirelessly connectable sibling, the Pi Zero W, enable makers in our community to build devices that are very small indeed. The PiCorder built by Wayne Keenan is probably the slimmest Pi-powered video-recording device we’ve ever seen.
A simple Pi-camcorder using @pimoroni #HyperPixel, ZeroLipo, lipo bat, camera and #PiZeroW. All parts from the Pirates, total of ~£85. Project build instructions: https://www.hackster.io/TheBubbleworks/picorder-0eb94d
Wayne’s PiCorder is a very straightforward make. On the hardware side, it features a Pimoroni HyperPixel screen, Pi Zero camera module, and Zero LiPo plus LiPo battery pack. To put it together, he simply soldered header pins onto a Zero W, and connected all the components to it – easy as Pi! (Yes, I went there.)
So sleek as to be almost aerodynamic
Recording with the PiCorder (rePiCording?)
Then it was just a matter of installing the HyperPixel driver on the Pi, and the PiCorder was good to go. In this basic setup, recording is controlled via SSH. However, there’s a discussion about better ways to control the device in the comments on Wayne’s write-up. As the HyperPixel is a touchscreen, adding a GUI would make full use of its capabilities.
Think about how many screens you’re looking at right now
The PiCorder is a great project to recreate if you’re looking to build a small portable camera. If you’re new to soldering, this build is perfect for you: just follow our ‘How to solder’ video and tutorial, and you’re on your way. This could be the start of your journey into the magical world of physical computing!
A Candy Dispenser running Android Things, that exchange photos for candies. It uses computer vision to classify the image. https://github.com/alvarowolfx/ai-candy-dispenser https://www.hackster.io/alvarowolfx/android-things-a-i-candy-dispenser-a47e74
Released late last year, Android Things is Google’s Android-based operating system for low-cost Internet of Things (IoT) devices such as the Raspberry Pi.
Invented in ancient India, candy is a scrumptious treat often made of sugar and/or chocolate.
The Android Things Candy Dispenser
Via its 20×4 display, Alvaro’s candy dispenser asks for an image, for example of a cat or a dog. Produce the requested image in front of the onboard Camera Module and the dispenser releases a delicious reward for you.
Inside the dispenser
Alvaro’s schematic provides all the information you need to build your own Android Things candy dispenser (click for a larger version)
The dispenser uses a Raspberry Pi to control both the image detection and the candy release. Press the button, and the Raspberry Pi displays one of several image subjects on the screen. Via the camera, the Pi records the image you present and sends for processing via Google’s Cloud Vision API. Cloud Vision supplies image annotations and metadata, and if these match the image request, boom, free candy!
To discover more about Google Cloud Vision, check out this video from the Cloud Vision team.
Alvaro provides full instructions for the build, including all necessary code and peripherals, on both Instructables and GitHub.
Building with Android Things
Given that Android Things has not been available for very long, we have yet to see many complete builds using it with the Raspberry Pi. If you’d like to try out this OS, Alvaro’s project is a great entry point. You should also check out the Pimoroni Rainbow HAT Android Things Starter Kit that provides everything you need to begin making. And if you have a Pi and are raring to go, follow the official ‘Android Things on Raspberry Pi’ setup guide here.
If you’ve already built a project using the Android Things platform, we’d love to see it! Make sure to share your project link in the comments below.
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.
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.
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.
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.
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!
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!
We’re extremely excited to share with you the latest issue of The MagPi, the official Raspberry Pi magazine. It’s a very special issue bundled with an exclusive project kit from Google.
Called AIY Projects, the free hardware kit enables you to add voice interaction to your Raspberry Pi projects. The first AIY Projects kits are bundled free with the print edition of The MagPi 57.
What you’ll find inside
Inside the magazine, you’ll find a Google Voice Hardware Attached on Top (HAT) accessory board, a stereo microphone Voice HAT board, a large arcade button, and a selection of wires. Last but not least, you’ll find a custom cardboard case to house it all in.
All you need to add is a Raspberry Pi 3. Then, after some software setup, you’ll have access to the Google Assistant SDK and Google Cloud Speech API.
Check out the exclusive Google AIY Projects Kit that comes free with The MagPi 57! Grab yourself a copy in stores or online now: http://magpi.cc/2pI6IiQ This first AIY Projects kit taps into the Google Assistant SDK and Cloud Speech API using the AIY Projects Voice HAT (Hardware Accessory on Top) board, stereo microphone, and speaker (included free with the magazine).
We’ve got a full breakdown of how to set it all up and get it working inside the magazine. The folks at Google, along with us at The MagPi, are really excited to see what projects you can create (or enhance) with this kit, whether you’re creating a voice-controlled robot or a voice interface that answers all your questions. Some Raspberry Pi owners have been building AIY Projects in secret at Hackster, and we have their best voice interaction ideas in the magazine.
On top of this incredible bundle we also have our usual selection of excellent tutorials – such as an introduction to programming with Minecraft Pi, and hacking an Amazon Dash button – along with reviews, project showcases, and our guide to building the ultimate makers’ toolbox.
Create the ultimate makers’ toolkit and much more with issue 57 of The MagPi
Subscribers should be getting their copies tomorrow, and you can also buy a copy in UK stores including WHSmith, Tesco, Sainsbury’s, and Asda. Copies have been shipped to North America, and are available at Barnes & Noble and other stores. Otherwise, you can get a copy online from The PiHut. Digital versions (without the AIY Projects kit) are available in our Android and iOS app. Finally, as always, there’s the free PDF download.
We really hope you enjoy this issue and make some amazing things with your AIY Projects kit. Let us know what you plan to make on social media, using the hashtag #AIYProjects, or on the Raspberry Pi forums.
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