Indholdsfortegnelse for #114 i Raspberry Pi Official Magazine

To make your own Sunrise Lamp, you’ll need a shape such as an icosahedron that allows light through, Raspberry Pi Zero, microSD card, power supply, jumper leads, and a NeoPixel ring. 01 Use jumpers to attach the NeoPixel ring to the GPIO header on your Raspberry Pi Zero W, and then to the removable base section of the origami shade. Full instructions and code are at magpi.cc/sunriselamp. 02 You’ll need around 50 sheets of stiff paper or card from which to cut and fold strips to assemble into a discernible shape. Video instructions for creating origami icosohedra can be found on YouTube: magpi.cc/icosahedron. 03 It’s simplest to control the Sunrise Lamp from a web dashboard and to log in via SSH.…

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There are many different programming languages you can choose from, and during your coding journey, you’ll typically learn a few different languages. The good news is that most modern programming languages share similar concepts: variables, if-while loops, function definitions, objects, and so on. So, once you’ve learnt the first language, the second is much easier. As well as core languages, there are tools of the trade that you will need: SQL databasing, networking, GUI implementation, and so on. Which languages you should learn is an ever-shifting conversation, with new languages coming along and evolving every year. Having said that, there are a few solid choices that you should keep on your radar. If you’re an absolute beginner, then avoid the chatter and go straight to Python. Java Many desktop programs…

Retro Gaming with Raspberry Pi shows you how to set up a Raspberry Pi to play classic games. Build your own games console or full-size arcade cabinet, install emulation software and download classic arcade games with our step-by-step guides. Want to make games? Learn how to code your own with Python and Pygame Zero. ▪ Set up Raspberry Pi for retro gaming ▪ Emulate classic computers and consoles ▪ Learn to code your own retro-style games ▪ Build a console, handheld, and full-size arcade machine BUY ONLINE: magpi.cc/store…

TOOLS Model kits You can learn a lot by building model robots or planes, from engineering of joints to how to clean up cuts with sandpaper. You can even do custom paint jobs with them. Your nearest hobby store should have some, but we also really like the Bandai Gunpla kits. MATERIALS…

Make Your Own Neural Networks CREATOR Tariq Rashid Price: £32 / $39 magpi.cc/neuralbook Artificial intelligence (AI) research dates back to the 1950s, when scientists started creating biologically inspired electronic circuits that could function in a similar manner to the human brain using a ‘neural network’ of connections. Things have come a long way since those very basic first machines, but the concept remains the same. Aimed at beginners (no specialist knowledge is required beyond school maths), this easy-tofollow book comprises three main parts. The first teaches you how neural networks work. The second is more practical, guiding you through the process of using Python to program your own neural network that can be trained to recognise human handwritten characters – a task that is very difficult using traditional approaches to…

> Name Alex Glow > Occupation Video host > Community role Maker leader > Website @glowascii If you’re involved at all with the online maker community, you’ve definitely seen Alex Glow’s face somewhere. Whether doing video tutorials, unboxing, interviewing, or just generally showing off a very cool project, she’s everywhere. “When I was a kid, I’d take apart anything”, Alex says about her maker history. “Keyboards, dolls, and so on. I was raised by many people with their own creative endeavours: my bio-dad showed me how to solder, my foster parents taught me to crochet, and my adoptive parents made amazing Halloween costumes, foods, and home improvements. As a preteen, I got really into fountain pens and creating illuminated manuscripts; then, costumes, cut paper, and 2D wire drawings. I joined…

It’s weird how eyes can be a bit creepy – whether they’re animated incorrectly or just sitting on their own. Anyway, here’s a very big, single eye that will keep track of you. “This robot, named ‘Technical Function’, is… used to test out offline computer vision, this time with the much more powerful Raspberry Pi 4,” Sean Glendinning, its creator, explains to us. “It also features a USB microphone array attached to its head, two speakers attached to the sides, and its most striking feature: an animatronic eye where a Raspberry Pi Camera is mounted. I originally wanted to test out offline speech recognition as well, but I haven’t had any good results. It also includes a real time clock, an accelerometer to sense orientation, and a power circuit that…

In this tutorial, you will build a wheeled car using LEGO components. Its movement will be determined by two separately driven wheels placed on either side of the car, allowing it to move forwards, backwards, and turn. You can optionally add LEDs to the car to act as brake lights, indicators, or headlights. You’ll need a Build HAT, two Technic™ motors, and an assortment of LEGO, including two wheels (we used a selection from the LEGO Education SPIKE™ Prime kit) This tutorial is from the Raspberry Pi Foundation and you can find a more detailed guide online at magpi.cc/legocar. 01 Set up the Build HAT Before you begin, you’ll need to have set up your Raspberry Pi computer and attached your Build HAT. See our Get Started with Raspberry Pi…

01 Blender A free 3D modelling program, Blender (blender.org) is great for creating your own custom models to 3D print. It can be a bit tricky for newcomers though, which is why we recommend the excellent Blender learning courses from the Raspberry Pi Foundation: magpi.cc/blenderprojects. Finished files can be output as an .stl file to work with 3D printers. 02 TinkerCAD While a little more basic than Blender, TinkerCAD allows you to create simpler 3D-printable files much more quickly than Blender – especially if you’re new to 3D modelling. You can find it at tinkercad.com and it’s all done in your browser. It even lets you import image files and such as well. 03 Combining model A little trick we’ve learnt while messing around with miniature figures and other things…

BEGINNING ARTIFICIAL INTELLIGENCE WITH THE RASPBERRY PI Covering concepts such as neural networks, fuzzy logic, and deep learning, it also provides practical, fun projects to code and build, culminating in an AI robot vehicle. magpi.cc/beginaibook THE HUNDRED-PAGE MACHINE LEARNING BOOK Learn all about machine learning in… it’s actually 160 pages, but still an impressively concise introduction to the field, covering the fundamentals in an easy-to-understand fashion. themlbook.com HELLO WORLD If you’re interested in the impact AI is having on every aspect of our modern lives, and where it might be heading in the future, Hannah Fry’s book is a fascinating read. magpi.cc/hwbook…

Every Monday we ask the question: have you made something with a Pi over the weekend? Every Monday, our followers send us amazing photos and videos of the things they’ve made. Here’s a selection of some of the awesome things we got sent this month, and we got quite a lot! Remember to follow along at the hashtag #MagPiMonday!…

When Samsung introduced the Sero, it literally turned television on its head. Rather than force viewers to watch in a widescreen format, this 43-inch 4K OLED TV is able to rotate on its stand, giving viewers the choice of horizontal or vertical video – perfect if you want to switch from a TV series such as The Tick to enjoying the latest shenanigans on TikTok. Anton Suntinger was certainly impressed after catching sight of the television in a commercial. Rather than rush out and buy one, though, he looked to create his own version from scratch. Not only would his television show whatever was being played on his Android phone, it would rotate depending on how he was holding his device. “It started as a kind of feasibility study rather…

The best way to learn and improve your coding abilities is to start a project. You can learn a lot from fixing problems in projects and building something from the ground up. Plus, it’s simply more fun to build something you’re personally interested What you pick is up to you. It depends on what you are interested in and there are lots of lots of ideas out there. We advise you to pick up a pen and start writing down ideas, after you get past the first few your later ideas will start to become interesting. Here are some areas to help you get started… Build a full-stack website Everybody uses the web and many of us have had some experience of building websites. So, this is a great place…

In this series, we are exploring some of the most commonly available sensors and their use cases. Previously, we have built a couple of alarms – one for fire and gas safety, the other for detecting intruders – and a basic weather station. In the latter, we made use of an ADC to read the analogue output of a UV sensor. This time we’ll be using an ADC to check the value from a moisture sensor placed in a plant pot. We’ll also add a liquid level sensor to check the water level in a reservoir (saucer) holding the plant pot. If the soil or water reservoir is dry, the monitor will send us a Pushbullet alert telling us to water the plant to keep it healthy. 01 Connect the…

Jordi currently works as a software engineer in Norway for a company that develops systems to design infrastructure: roads, railways, utilities… He originally comes from Spain and, in his spare time, codes video games. Platform games have long been about dexterity: running, jumping, and avoiding enemies and pits. The genre’s roots go back to Nintendo’s Donkey Kong, released in 1981, and gradually evolved from single fixed screens to scrolling levels, and then to 3D. Rainbow Islands: The Story of Bubble Bobble 2, developed for arcades by Taito in 1987, stood out from other platformers thanks to its vertical level design and unique attacks. The player makes their way from the bottom to the top of narrow stages, and can cast rainbows which can be used as both temporary platforms and…

01 Measuring and drawing Although cardboard is a great material to use, and you may have a lot of it, using paper to help plan out your projects can also be good. Use rulers and protractors, and any other drawing tools you have, to mark out what you’d like to do, or just trace the paper you’ve experimented with. We like to use marker pens to get a very visible line, but a pencil can also be good to start with to get it just right. 02 Scoring and cutting For folding your cardboard, you’ll need to do some scoring; this is when you use one scissor blade to run across a fold line without cutting through it to make the cardboard easier to bend. Metal rulers are great to…

TOOLS Carpentry resources Steve Ramsey on YouTube has excellent videos with great carpentry tips and tricks, as well as an online course for people really wanting to get stuck in with carpentry: magpi.cc/carpentrysteve. WORK SPACE UPGRADES Learn to weld Welding can be a really useful tool when working with metal, however it can also be complicated and very dangerous. While there are some YouTube videos you can watch, we recommend finding an online or local course you can do that will teach you how to weld safely. Local maker spaces The expense of tools and materials can really ramp up, and you may not have the space or money for them. This is where a local maker space can be great – these community spaces tend to be filled with…

One of the best features of Raspberry Pi and Raspberry Pi Pico is that they’re very small, which means you can slip them into projects or hide them around your house. Here are some of the best smaller projects for you to check out. OctoCam Zero camera kit This fun little Raspberry Pi Zero kit will help you attach a camera to a window so that you can track wildlife, or the weather, or whatever you wish. magpi.cc/octocam | £43 Digital Orrery Solar system clock This little clock not only tells you the time, but also depicts the exact arrangement of planets in the Solar System at the same time! You can also move it forwards or backwards to see the planets at that time. magpi.cc/picosolar Smart doorbell See who’s…

INTRODUCTION TO MACHINE LEARNING AND AI Created by the Raspberry Pi Foundation, this four-week FutureLearn course explores different types of machine learning and shows you how to train your own AI using free online tools. magpi.cc/futurelearnml LEARN WITH GOOGLE AI Google’s education site is a great place to start your journey into exploring AI. The 37 resources here include guides and full courses – start with the Machine Learning Crash Course. ai.google/education FUNDAMENTALS OF DEEP LEARNING FOR COMPUTER VISION Computer vision is a subdivision of AI, and this hands-on course from Nvidia shows you how to implement common deep learning workflows such as image classification and object detection. magpi.cc/nvidiacv…

HEART RATE DETECTION > magpi.cc/GtyfhE This exceptionally clever piece of tech uses Eulerian Magnification which lets you analyse video frames to determine a heart beat. BETTER SAFE THAN SORRY > magpi.cc/XSqC1V This funky robot has sensors that let it know if there is nowhere for its foot/leg to go, announces this, and then moves backwards. Clever! OPENAUTO PRO > magpi.cc/k8QZR4 OpenAuto is software that acts like a modern car computer system, and this one is running on Raspberry Pi.…

Free gift check When will my Raspberry Pi Zero 2 W gift arrive after I subscribe to the magazine for twelve months in print? Ibs via Twitter Depending on where you subscribed from, it may take a little while since we are based in the UK. If you are concerned, you can contact magpi@subscriptionhelpline.co.uk for any and all subscription enquiries, including where your free gift might be. #MagPiMonday email edition I am writing because I have made a project which I would tag with #MagPiMonday, but I’m too young for social media. I have some light-up tinsel that I put on my mini Christmas tree. It’s either solid on or solid off. I found on the battery-box a 2-pin JST connector from the display in the shop. I did not…

TonyPi is an incredible humanoid Raspberry Pi robot which we reviewed way back in issue 111. It’s 37 cm tall and specialises in object recognition, and is easily remote-controlled to move as well. We have one to give away. Head here to enter: magpi.cc/win Learn more: hiwonder.hk Terms & Conditions Competition opens on 26 January 2022 and closes on 24 February 2022. Prize is offered to participants worldwide aged 13 or over, except employees of the Raspberry Pi Foundation, the prize supplier, their families, or friends. Winners will be notified by email no more than 30 days after the competition closes. By entering the competition, the winner consents to any publicity generated from the competition, in print and online. Participants agree to receive occasional newsletters from The MagPi magazine. We…

People get excited about old games. It’s not exactly a secret, given the ongoing boom in remakes, remasters, and repackaged classics. But there’s something special about trying to come as close as you can to the original gaming experience. Perhaps the most surprising thing I’ve found over years of building emulation systems is how broad their appeal is. Kids who have never known a time without HD screens and realistic 3D take to pixelated platformers and EGA edutainment software without a blink. Even the difficulty spikes of old-school arcade classics, designed to separate players from their money as efficiently as possible, become artful punctuation in the language of play, thanks to the save states and infinite credits of an emulator-based arcade cabinet. With greater access to development tools, approachable languages,…