Schlagwort: The MagPi Magazine

  • Meet Ellora James

    Meet Ellora James

    Reading Time: 4 minutes

    In the latest issue of The MagPi magazine, we meet the smart young computer scientist behind an exciting new YouTube channel. When did you have that ‘ah-hah’ moment with computing? Ellora James remembers when she had hers.

    “When I was about 14/15 years old, I was considering taking Computer Science at exam level, and so my teacher gave me a Raspberry Pi to borrow and a booklet on Python to play about with,” Ellora tells us. “I remember taking it all home, setting up Raspberry Pi on my kitchen table, and writing my first-ever line of python where I got it to print ‘Hello World’. I was just fascinated by the concept of being able to get computers to do what we tell them, and I’ve been hooked ever since.”

    Ellora James

    Ellora James in a Raspberry Pi t shirt eating a pie
    Our favourite pie and microcomputer in one shot

    Several years, one company, and many awards later, Ellora is an up-and-coming young computer scientist who has recently launched her own amazing YouTube channel.

    What is your history with Raspberry Pi?

    “I continued to work through the Python booklet at home and started to dive deeper into Raspberry Pi itself. The big thing that really cemented my love of Raspberry Pi was being selected to attend the Raspberry Pi Digital Making Day in Cambridge, back in 2016. We had to create a 60-second video to apply and despite mine, from what I can remember, being very cheesy, I was selected to attend.

    Ellora James recording for her YouTube channel
    Ellora’s new YouTube channel includes fun builds with Raspberry Pi

    Me and my Mum travelled to Cambridge, which was a fun trip in itself. We tried soldering, set up bird-boxes with infrared cameras and Raspberry Pi Zero, and got to use electric paint to create circuits on T-shirts. It was so much fun, and I’m still planning on setting up my bird-box one day. Being specifically selected to attend gave me a lot of motivation to keep making. And that must have stayed with me over the years, as I’m back making again, and this time on an even bigger scale with my channel!”

    What is Envirocache?

    Envirocache is a mobile app designed to get children (and adults) outside, active, and educated about the world around them. The app allows you to search for walking routes near you and shows you points of interest you can find along the way. You unlock badges and earn points for finding these, like a nature treasure hunt.

    Ellora manages her YouTube channel mostly by herself, which can be a lot of work
    Ellora manages her YouTube channel mostly by herself, which can be a lot
    of work

    The concept started off as an entry to the Apps for Good competition and has grown from there. I now work on the app alongside my team members, Mari-Ann Ganson and Jamie Smith. The app is still in its development stage, but we’re looking at a potential release date this year.”

    What are some of your favourite things you’ve made with Raspberry Pi?

    “My first big project was my ‘PiAlarm’. I got a touchscreen display for the Raspberry Pi for Christmas back in 2015, and ended up designing an alarm clock in Python. It took many hours of work and I also lost my code at one point and had to start again, but I learned a lot from that project, and being my first big one it definitely holds a special place in my heart.

    Ellora with grow hat

    It had a full user interface, let me pick from multiple songs, and even tweeted the time it took me to get up and turn it off in an effort to encourage me to get out of bed quicker. I actually made a short video about it and still have the code somewhere, so I’m thinking of revisiting it on my channel as a future project. I also took part in the 2016/17 European Astro Pi Challenge, where my project idea involved measuring environmental data on the ISS to see how this impacted the circadian rhythms of astronauts.

    The idea was that the astronauts would log how long they slept for, the quality of their sleep, and also hunger levels, to gain an understanding of their circadian rhythm. I also planned to create a reaction game to test how sleep and hunger levels affected their reaction times.”

    Subscribe to Ellora’s YouTube channel

    If you like the sound of Ellora’s projects, why not subscribe to her YouTube channel. Ellora describes her channel as such:

    Hi everybody! My name is Ellora James and I’m a University student studying Ethical Hacking. I love all things technology and digital making, and this channel is dedicated to that. I’m also mildly *obsessed* with the Raspberry Pi, so you’ll see a lot of them on this channel!

    Website: LINK

  • Star Wars Arcade Cabinet | The MagPi #105

    Star Wars Arcade Cabinet | The MagPi #105

    Reading Time: 4 minutes

    Why pay over the odds when you can build an accurate replica, and have fun doing it? For the latest issue of The MagPi Magazine, Rob Zwetsloot switches off his targeting computer to have a look.

    header of the arcade cabinet bearing a Star Wars logo
    Art had to be rescaled, but it’s been done faithfully

    Getting the arcade machine of your dreams gets a little harder every day, especially the older they are. Making one, however, is always possible if you have the right skills and a Raspberry Pi.

    “My project was to build a replica, or as close as I could reasonably manage, of the Atari Star Wars arcade cabinet,” James Milroy tells us. “I really wanted to build a cockpit as that’s what I played on in the eighties, but sadly I didn’t have the room to house it, so the compromise was to build a stand-up cabinet instead.”

    The workings were simple when it came down to it: Raspberry Pi 3B+ with Pimoroni Picade X HAT. This gives us a power switch, audio amp, buttons, and a joystick if necessary. The replica yoke is interfaced with a USB adapter from the same company
    The workings were simple when it came down to it: Raspberry Pi 3B+ with Pimoroni Picade X HAT. This gives us a power switch, audio amp, buttons, and a joystick if necessary. The replica yoke is interfaced with a USB adapter from the same company

    Even then, the standard cabinet has a lot of detail, and James really nailed the look of it. Why build it from scratch, though? “Initially, I had toyed with sourcing an original cabinet and restoring it, but soon gave up on that idea after finding it nigh on impossible to source a cabinet here in the UK,” James explains. “Almost all cabinets for sale were located in the USA, so they were out of the question due to the high cost of shipping. Atari only made just over 12,500 cabinets worldwide, so their rarity meant that they commanded top dollar, effectively putting them out of my price range. It was at this point that I decided that if it was going to happen, then I would have to make it myself.”

    star wars arcade cabinet full length shot

    Making a cabinet is hard enough, but the control system would have to be an original Atari yoke. “The Atari yoke is considered the ‘holy grail’ of controllers and, again, is very hard to find,” James says. “My prayers were answered in October 2018 when a thread on a forum I was subscribed to popped up with a small Utah-based startup aiming to supply replica yokes at a realistic price to the arcade community. I grabbed two of these (one for my friend) and the project was on.”

    Good feeling

    When it came to actually emulating the game, for James there was only one choice: “My decision to go with a Raspberry Pi was a no-brainer really. I had previously made a bartop cabinet using a Raspberry Pi 3 and RetroPie/EmulationStation which I was really pleased with. So I had a platform that I already had experience with and knew was more than capable of emulating the one game I needed to run. Besides, the simplicity and low cost of the ecosystem for Raspberry Pi far outweighs the extra expense and effort required going down the PC route.”

    The riser was a custom build by James that emulates lights from the films
    The riser was a custom build by James that emulates lights from the film

    With a custom build and emulation, authenticity of the gameplay experience could be a bit off. However, that’s not the case here. “I think that it plays just like the real arcade machine mainly due to the inclusion of the replica yoke controller, and adding your credit by pressing the button on the coin door,” says James. “Ideally a vector monitor or a CRT would go a long way to making it look just like the original, but a reasonable representation is possible on an LCD using shaders and anti-aliasing. Gameplay does seem to get really hard really quick, though; this could be due to an imperfect emulation, but is more likely due to my reactions having dulled somewhat in the last 38 years!”

    Always in motion

    While the current build is amazing as it is, James does have some ideas to improve it. “Overall, I’m really pleased with the way the cabinet has worked out,” he says. “I will be replacing Raspberry Pi 3B+ with a Raspberry Pi 4 to enable me to run a newer version of MAME which will hopefully offer a better emulation, sort some audio glitching I get with my current setup, and hopefully enable some graphical effects (such as bloom and glow) to make it look more like its running on a CRT.”

    Get your copy of The Magpi #105 now!

    You can grab the brand-new issue right now online from the Raspberry Pi Press store, or via our app on Android or iOS. You can also pick it up from supermarkets and newsagents, but make sure you do so safely while following all your local guidelines. There’s also a free PDF you can download.

    Website: LINK

  • Raspberry Pi Zero W turns iPod Classic into Spotify music player

    Raspberry Pi Zero W turns iPod Classic into Spotify music player

    Reading Time: 4 minutes

    Recreating Apple’s iconic iPod Classic as a Spotify player may seem like sacrilege but it works surprisingly well, finds Rosie Hattersley. Check out the latest issue of The MagPi magazine (pg 8 – 12) for a tutorial to follow if you’d like to create your own.

    Replacement Raspberry Pi parts laying inside an empty iPod case to check they will fit
    Replacement Raspberry Pi parts laying inside an empty iPod case to check they will fit

    When the original iPod was launched, the idea of using it to run anything other than iTunes seemed almost blasphemous. The hardware remains a classic, but our loyalties are elsewhere with music services these days. If you still love the iPod but aren’t wedded to Apple Music, Guy Dupont’s Spotify hack makes a lot of sense. “It’s empowering as a consumer to be able to make things work for me – no compromises,” he says. His iPod Classic Spotify player project cost around $130, but you could cut costs with a different streaming option.

    “I wanted to explore what Apple’s (amazing) original iPod user experience would feel like in a world where we have instant access to tens of millions of songs. And, frankly, it was really fun to take products from two competitors and make them interact in an unnatural way.” 

    Guy Dupont

    Installing the C-based haptic code on Raspberry Pi Zero, and connecting Raspberry Pi, display, headers, and leads
    Installing the C-based haptic code on Raspberry Pi Zero, and connecting Raspberry Pi, display, headers, and leads

    Guy’s career spans mobile phone app development, software engineering, and time in recording studios in Boston as an audio engineer, so a music tech hack makes sense. He first used Raspberry Pi for its static IP so he could log in remotely to his home network, and later as a means of monitoring his home during a renovation project. Guy likes using Raspberry Pi when planning a specific task because he can “program [it] to do one thing really well… and then I can leave it somewhere forever”, in complete contrast to his day job. 

    Mighty micro

    Guy seems amazed at having created a Spotify streaming client that lives inside, and can be controlled by, an old iPod case from 2004. He even recreated the iPod’s user interface in software, right down to the font. A ten-year-old article about the click wheel provided some invaluable functionality insights and allowed him to write code to control it in C. Guy was also delighted to discover an Adafruit display that’s the right size for the case, doesn’t expose the bezels, and uses composite video input so he could drive it directly from Raspberry Pi’s composite out pins, using just two wires. “If you’re not looking too closely, it’s not immediately obvious that the device was physically modified,” he grins.

    All replacement parts mounted in the iPod case
    All replacement parts mounted in the iPod case

    Guy’s retro iPod features a Raspberry Pi Zero W. “I’m not sure there’s another single-board computer this powerful that would have fit in this case, let alone one that’s so affordable and readily available,” he comments. “Raspberry Pi did a miraculous amount of work in this project.” The user interface is a Python app, while Raspberry Pi streams music from Spotify via Raspotify, reads user input from the iPod’s click wheel, and drives a haptic motor – all at once. 

    Guy managed to use a font for the music library that looks almost exactly the same as Apple’s original
    Guy managed to use a font for the music library that looks almost exactly the same as Apple’s original

    Most of the hardware for the project came from Guy’s local electronics store, which has a good line in Raspberry Pi and Adafruit components. He had a couple of attempts to get the right size of haptic motor, but most things came together fairly easily after a bit of online research. Help, when he needed it, was freely given by the Raspberry Pi community, which Guy describes as “incredible”.

    Things just clicked 

    Guy previously used Raspberry Pi to stream albums around his home
    Guy previously used Raspberry Pi to stream albums around his home

    Part of the fun of this project was getting the iPod to run a non-Apple streaming service, so he’d also love to see versions of the iPod project using different media players. You can follow his instructions on GitHub.

    Next, Guy intends to add a DAC (digital to analogue converter) for the headphone jack, but Bluetooth works for now, even connecting from inside his jacket pocket, and he plans to get an external USB DAC in time. 

    Website: LINK

  • Kay-Berlin Food Computer | The MagPi #104

    Kay-Berlin Food Computer | The MagPi #104

    Reading Time: 4 minutes

    In the latest issue of The MagPi Magazine, out today, Rob Zwetsloot talks to teacher Chris Regini about the incredible project his students are working on.

    When we think of garden automation, we often think of basic measures like checking soil moisture and temperature. The Kay-Berlin Food Computer, named after student creators Noah Kay and Noah Berlin, does a lot more than that. A lot more.

    At night, an IR LED floodlight allows for infrared camera monitoring via a Raspberry Pi NoIR Camera Module
    At night, an IR LED floodlight allows for infrared camera monitoring via a Raspberry Pi NoIR Camera Module

    “It is a fully automated growth chamber that can monitor over a dozen atmospheric and root zone variables and post them to an online dashboard for remote viewing,” Chris Regini tells us. He’s supervising both Noahs in this project. “In addition to collecting data, it is capable of adjusting fan speeds based on air temperature and humidity, dosing hydroponic reservoirs with pH adjustment and nutrient solutions via peristaltic pumps, dosing soil with water based on moisture sensor readings, adjusting light spectra and photoperiods, and capturing real-time and time-lapsed footage using a [Raspberry Pi] Camera Module NoIR in both daylight and night-time growth periods.”

    Everything can be controlled manually or set to be autonomous. This isn’t just keeping your garden looking nice, this is the future of automated farming.

    All the data is used for automation, but it’s accessible to students for manual control
    All the data is used for automation, but it’s accessible to students for manual control

    Seeds of knowledge

    “The idea originated from the long standing MIT food computer project and lots of open-source collaboration in both the agriculture and Raspberry Pi communities,” Chris explains. “We’ve always had the hopes of creating an automated growing system that could collect long-term data for use in the ISS during space travel or in terrestrial applications where urbanisation or climate concerns required the growth of food indoors.”

    With students doing a lot of learning from home in the past year, having such a system accessible online for interaction was important for Chris: “Adding a layer that could keep students engaged in this endeavour during remote learning was the catalyst that truly spurred on our progress.”

    “All data is viewable in real time and historically,
    “All data is viewable in real time and historically,

    This level of control and web accessibility is perfect for Raspberry Pi, which Chris, his students, and his Code Club have been using for years.

    “The fact that we had access to the GPIOs for sensors and actuators as well as the ability to capture photo and video was great for our application,” Chris says. “Being able to serve the collected data and images to the web, as well as schedule subroutines via systemd, made it the perfect fit for accessing our project remotely and having it run time-sensitive programs.”

    There are six plants in the box, allowing for a lot of data collection
    There are six plants in the box, allowing for a lot of data collection

    The computer has been in development for a while, but the students working on it have a wide range of skills that have made it possible.

    “We have had a dedicated nucleus of students that have spent time learning plant science, electronic circuitry, Python, developing UIs, and creating housings in CAD,” Chris explains. “They all started as complete beginners and have benefited greatly from the amazing tutorials available to them through the Raspberry Pi Foundation website as well as the courses offered on FutureLearn.”

    Grow beyond

    “The entire system has a network of sensors... which monitor atmospheric variables of air temperature, humidity, CO2, O2, and air pressure.
    The entire system has a network of sensors which monitor atmospheric variables of air temperature,
    humidity, CO2, O2, and air pressure.

    The project is ongoing – although they’re already getting a lot of data that is being used for citizen science.

    “The system does a fantastic job collecting data and allowing us to visualise it via our Adafruit IO+ dashboards,” Chris says. “Upgrading our sensors and actuators to more reliable and accurate models has allowed the system to produce research level data that we are currently sharing in a citizen science project called Growing Beyond Earth. It is funded by NASA and is organised through Fairchild Botanical Gardens. We have been guided along the way by industry professionals in the field of hydroponics and have also collaborated with St. Louis-based MARSfarm to upgrade the chamber housing, reflective acrylic panels, and adjustable RGBW LED panel.  Linking our project with scientists, engineers, researchers, and entrepreneurs has allowed it to really take off.”

    Get your copy of The Magpi #104 now!

    You can grab the brand-new issue right now online from the Raspberry Pi Press store, or via our app on Android or iOS. You can also pick it up from supermarkets and newsagents, but make sure you do so safely while following all your local guidelines. There’s also a free PDF you can download.

    MagPi 104 cover

    Website: LINK

  • #MonthOfMaking is back in The MagPi 103!

    #MonthOfMaking is back in The MagPi 103!

    Reading Time: 3 minutes

    Hey folks, Rob from The MagPi here! I hope you’ve been doing well. Despite how it feels, a brand-new March is just around the corner. Here at The MagPi, we like to celebrate March with our annual #MonthOfMaking event, where we want to motivate you to get making.

    A MonthOfMaking project: Someone wearing a wearable tech project featuring LEDs, a two-digit LED matrix, and a tablet screen. The person is high-fiving someone who is out of view.
    You could make tech you can wear

    But what should I make?

    Making what? Anything you want. Flex your creative building skills with some programming, or circuity, or woodworking, metalwork, knitting, baking, photography, and whatever else you’ve been wanting to try out. Just make it, and share it with the hashtag #MonthOfMaking.

    A MonthOfMaking project: a wildlife camera camouflaged in branches
    You could make something to hide in nature while you capture… nature

    In The MagPi 103 we have a big feature on alternative ways you can make — at least alternative to what we usually cover in the magazine. From sewing and embroidery to recycling and animation, we hope you’ll be inspired to try something new.

    Try something new with Raspberry Pi Pico

    I’ve got a few projects lined up myself, including some Raspberry Pi Pico stuff I’ve been mulling over.

    A MonthOfMaking project: a homemade chandelier consisting of glass bottles and an LED ring
    You could make a chandelier light fitting out of drinks bottles?!

    Speaking of: we also show you some easy Raspberry Pi Pico projects to celebrate its recent release! You’ll discover all the ways you can get started with and learn more about Raspberry Pi’s first microcontroller.

    All this and our usual selection of articles on weather maps, on-air lights, meme generators, hardware reviews, and much more is packed into issue 103!

    A MonthOfMaking project: two Nintendo Game Boys, one of them hacked with two extra buttons and a colour display
    Maybe you could tinker with some old tech

    Get The MagPi 103 now

    You can grab the brand-new issue right now online from the Raspberry Pi Press store, or via our app on Android or iOS. You can also pick it up from supermarkets and newsagents, but make sure you do so safely while following all your local guidelines.

    magpi magazine cover issue 103

    Finally, there’s also a free PDF you can download. Good luck during the #MonthOfMaking, folks! I’ll see y’all online.

    Website: LINK

  • Raspberry Pi engineers on the making of Raspberry Pi Pico | The MagPi 102

    Raspberry Pi engineers on the making of Raspberry Pi Pico | The MagPi 102

    Reading Time: 4 minutes

    In the latest issue of The MagPi Magazine, on sale now, Gareth Halfacree asks what goes into making Raspberry Pi’s first in-house microcontroller and development board.

    [youtube https://www.youtube.com/watch?v=o-tRJPCv0GA?feature=oembed&w=500&h=281]

    “It’s a flexible product and platform,” says Nick Francis, Senior Engineering Manager at Raspberry Pi, when discussing the work the Application-Specific Integrated Circuit (ASIC) team put into designing RP2040, the microcontroller at the heart of Raspberry Pi Pico

    It would have been easy to have said, well, let’s do a purely educational microcontroller “quite low-level, quite limited performance,” he tells us. “But we’ve done the high-performance thing without forgetting about making it easy to use for beginners. To do that at this price point is really good.”

    “I think we’ve done a pretty good job,” agrees James Adams, Chief Operating Officer at Raspberry Pi. “We’ve obviously tossed around a lot of different ideas about what we could include along the way, and we’ve iterated quite a lot and got down to a good set of features.”

    A board and chip

    “The idea is it’s [Pico] a component in itself,” says James. “The intent was to expose as many of the I/O (input/output) pins for users as possible, and expose them in the DIP-like (Dual Inline Package) form factor, so you can use Raspberry Pi Pico as you might use an old 40-pin DIP chip. Now, Pico is 2.54 millimetres or 0.1 inch pitch wider than a ‘standard’ 40-pin DIP, so not exactly the same, but still very similar.

    “After the first prototype, I changed the pins to be castellated so you can solder it down as a module, without needing to put any headers in. Which is, yes, another nod to using it as a component.”

    Getting the price right

    “One of the things that we’re very excited about is the price,” says James. “We’re able to make these available cheap as chips – for less than the price of a cup of coffee.”

    “It’s extremely low-cost,” Nick agrees. “One of the driving requirements right at the start was to build a very low-cost chip, but which also had good performance. Typically, you’d expect a microcontroller with this specification to be more expensive, or one at this price to have a lower specification. We tried to push the performance and keep the cost down.”

    “We’re able to make these available cheap as chips.”

    James Adams

    Raspberry Pi Pico also fits nicely into the Raspberry Pi ecosystem: “Most people are doing a lot of the software development for this, the SDK (software development kit) and all the rest of it, on Raspberry Pi 4 or Raspberry Pi 400,” James explains. “That’s our primary platform of choice. Of course, we’ll make it work on everything else as well. I would hope that it will be as easy to use as any other microcontroller platform out there.”

    Eben Upton on RP2040

    “RP2040 is an exciting development for Raspberry Pi because it’s Raspberry Pi people making silicon,” says Eben Upton, CEO and co-founder of Raspberry Pi. “I don’t think other people bring their A-game to making microcontrollers; this team really brought its A-game. I think it’s just beautiful.

    Is Pico really that small, or is Eben a giant?

    “What does Raspberry Pi do? Well, we make products which are high performance, which are cost-effective, and which are implemented with insanely high levels of engineering attention to detail – and this is that. This is that ethos, in the microcontroller space. And that couldn’t have been done with anyone else’s silicon.”

    Issue #102 of The MagPi Magazine is out NOW

    MagPi 102 cover

    Never want to miss an issue? Subscribe to The MagPi and we’ll deliver every issue straight to your door. Also, if you’re a new subscriber and get the 12-month subscription, you’ll get a completely free Raspberry Pi Zero bundle with a Raspberry Pi Zero W and accessories.

    Website: LINK

  • Gifts that last all year round

    Gifts that last all year round

    Reading Time: 3 minutes

    What if you could give the joy of opening a Raspberry Pi–themed gift every single month for a whole year? But what if the thought of wrapping 12 individual things fills you with Scrooge-level dread?

    Snap up a magazine subscription for one of your nearest and/or dearest and we’ll take care of the packaging and delivery while you sit back and reap all the credit!

    You could end up with a few extra gifts depending on what you sign up for so, read on and take your pick.

    The MagPi magazine

    Magpi magazines fanned out with free gift to the side of them

    The official Raspberry Pi magazine comes with a free Raspberry Pi Zero W kit worth £20 when you sign up for a 12-month subscription. You can use our tiniest computer in tonnes of projects, meaning Raspberry Pi fans can never have enough. That’s a top gift-giving bonus for you right there.

    Every issue of The MagPi is packed with computing and electronics tutorials, how-to guides, and the latest news and reviews. They also hit their 100th issue this month so, if someone on your list has been thinking about getting a subscription, now is a great time.

    Check out subscription deals on the official Raspberry Pi Press store.

    HackSpace magazine

    Hackspace magazines fanned out with adafruit gift on top

    HackSpace magazine is the one to choose for fixers and tinkerers of all abilities. If you’re looking for a gift for someone who is always taking things apart and hacking everyday objects, HackSpace magazine will provide a year of inspiration for them.

    12-month subscriptions come with a free Adafruit Circuit Playground Express, which has been specially developed to teach programming novices from scratch and is worth £25.

    Check out subscription deals on the official Raspberry Pi Press store.

    Custom PC

    Some Custom PC magazines fanned out with the free giveaway mouse on top of them

    Custom PC is the magazine for people who are passionate about PC technology and hardware. And they’ve just launched a pretty cool new giveaway with every 12-month subscription: a free Chillblast Aero RGB Gaming mouse worth £40. Look, it lights up, it’s cool.

    Check out subscription offers on the official Raspberry Pi Press store.

    Wireframe magazine

    Wireframe magazine lifts the lid on video games. In every issue, you’ll find out how games are made, who makes them, and how you can code them to play for yourself using detailed guides.

    The latest deal gets you three issues for just £10, plus your choice of one of our official books as a gift. By the way, that ‘three for £10 plus a free book’ is available across ALL our magazines. Did I not tell you that before? My bad. It’s good though, right?

    Check out more subscriptions deals on the official Raspberry Pi Press store.

    Three books for the price of one

    A selection of Raspberry Pi books on a table surrounded by Christmas decorations

    And as an extra Christmas gift to you all, we’ve decided to keep our Black Friday deal rolling until Christmas Eve, so if you buy just one teeny tiny book from the Raspberry Pi Press store, you get two more completely FREE!

    Better still, all of the books in the deal only cost £7 or £10 to start with, so makes for a good chunky batch of presents at a brilliantly affordable price.

    Website: LINK

  • 100 Raspberry Pi moments

    100 Raspberry Pi moments

    Reading Time: 4 minutes

    The official Raspberry Pi magazine turned 100 this month! To celebrate, the greatest Raspberry Pi moments, achievements, and events that The MagPi magazine has ever featured came back for a special 100th issue.

    100 Raspberry Pi Moments is a cracking bumper feature (starting on page 32 of issue 100, if you’d like to read the whole thing) highlighting some influential projects and educational achievements, as well as how our tiny computers have influenced pop culture. And since ’tis the season, we thought we’d share the How Raspberry Pi made a difference section to bring some extra cheer to your festive season.

    The Raspberry Pi Foundation was originally launched to get more UK students into computing. Not only did it succeed at that, but the hardware and the Foundation have also managed to help people in other ways and all over the world. Here are just a few examples!

    Computers for good

    The Raspberry Pi Foundation provides free learning resources for everyone; however, not everyone has access to a computer to learn at home. Thanks to funding from the Bloomfield Trust and in collaboration with UK Youth and local charities, the Foundation has been able to supply hundreds of Raspberry Pi Desktop Kits to young people most in need. The computers have allowed these children, who wouldn’t have been able to otherwise, to learn from home and stay connected to their schools during lockdown. The Foundation’s work to distribute Raspberry Pi computers to young people in need is ongoing.

    Elsewhere, a need for more medical equipment around the world resulted in many proposals and projects being considered for cheap, easy-to produce machines. Some included Raspberry Pi Zero, with 40,000 of these sold for ventilator designs.

    Offline learning

    While there’s no global project or standard to say what an offline internet should contain, some educational projects have tried to condense down enough online content for specific people and load it all onto a Raspberry Pi. RACHEL-Pi is one such solution. The RACHEL-PI kit acts as a server, hosting a variety of different educational materials for all kinds of subjects, as well as an offline version of Wikipedia with 6000 articles. There’s even medical info for helping others, math lessons from Khan Acadamy, and much more.

    The RACHEL sites are available in English, French, and Spanish

    17,000 ft is another great project, which brings computing to schools high up in the Himalayas through a similar method in an attempt to help children stay in their local communities.

    Young learners in red jackets and baseball caps using tablets to learn in a Himalayan school
    Ladakh is a desert-like region up a mountain that can easily shut down during the winter

    Education in other countries

    The free coding resources available on our projects site are great, and the Raspberry Pi Foundation works to make them accessible to people whose first language isn’t English: we have a dedicated translation team and, thanks to volunteers around the world, provide our free resources translated into up to 32 other languages. From French and Welsh to Korean and Arabic, there’s a ton of projects that learners from all over the world can access in their first language.

    And through the Code Club and CoderDojo programmes, the Foundation supports volunteers around the world to run free coding clubs for young people.

    A Raspberry Pi lab in Kuma Adamé, Togo that Dominique Laloux helped create and update
    A Raspberry Pi lab in Kuma Adamé, Togo, that Dominique Laloux helped create and update

    That’s not all: several charitable groups have set up Raspberry Pi classrooms to bring computing education to poorer parts of the world. People in African countries and parts of rural India have benefited from these programmes, and work is being done to widen access to ever more people and places.

    Pocket FM

    The Pocket FM is far smaller than traditional transmitters, and therefore easy to move into the country and set up

    The HAM radio community loves Raspberry Pi for amateur radio projects; however, sometimes people need radio for more urgent purposes. In 2016, German group Media in Cooperation and Transition created the Pocket FM 96 , micro radio transmitters with 4–6km range. These radios allowed Syrians in the middle of a civil war to connect to free media on Syrnet for more reliable news.

    There are a number of independent radio stations that transmit through Pocket FM
    There are a number of independent radio stations that transmit through Pocket FM

    Raspberry Pi powered these transmitters, chosen because of how easy it is to upgrade and add components to. Each transmitter is powered by solar power, and Syrnet is still transmitting through them as the war continues into its tenth year.

    Website: LINK

  • The MagPi #100: celebrate 100 amazing moments from Raspberry Pi history

    The MagPi #100: celebrate 100 amazing moments from Raspberry Pi history

    Reading Time: 3 minutes

    Hey there, folks, Rob from The MagPi here! I hope you’ve all been doing OK.

    Today we celebrate the 100th issue of The MagPi, the official Raspberry Pi magazine!

    Flat view of the special front cover of the magazine featuring a big red number 100

    Most of you probably know that The MagPi didn’t start off official, though: eight and a half years ago, intrepid community members came together to create The MagPi as a fanzine, and it ran as one for 30 issues (plus one special) until early 2015, when it became part of Raspberry Pi and went official.

    Officially official

    An orange rover robot which looks a bit like a dog with wheels and a cute smiling face

    For 70 issues now, the rest of the team and I have worked hard to bring Raspberry Pi fans a monthly magazine packed full of amazing content from the global Raspberry Pi (and wider maker) community. In the last six-ish years, I’ve built robots with you, stuffed Raspberry Pi Zeros into games controllers, lit up my Christmas tree, written far too many spooky puns, gone stargazing, recorded videos for numerous Raspberry Pi launches, and tried to help everyone who wanted to get their hands on the (in)famous issue 40.

    Celebrating a milestone

    Hand held gaming devices which look like traditional Game Boys

    I could go on, but I already have: for issue 100 we’re celebrating 100 incredible moments in Raspberry Pi history, from its humble beginnings to becoming the third best-selling computer ever, and one of the few to be on the International Space Station.

    One of those moments was the release of Raspberry Pi 400, an incredibly cool model of Raspberry Pi that elicited a few ‘oohs’ and ‘aahs’ from me when mine arrived in the post. We give it the full MagPi breakdown with benchmarks and interviews, courtesy of our good friend Gareth Halfacree.

    How to get issue 100

    Photos of ten Christmas themed projects and short blurbs linking to longer articles about them

    But wait, there’s more! We’ve managed to squeeze in our usual array of projects, tutorials, reviews, and community reports as well. Expect cool robots, funky guitars, handheld console building guides, and case reviews.

    You can buy The MagPi 100 right this very moment from the online Raspberry Pi Press store, get it on our app for Android or iOS, or even just download the PDF.

    Subscription offers!

    Never want to miss an issue? Subscribe to The MagPi and we’ll deliver every issue straight to your door. Also, if you’re a new subscriber and get the 12-month subscription, you’ll get a completely free Raspberry Pi Zero bundle with a Raspberry Pi Zero W and accessories.

    I really think you’ll like this issue. Here’s to another 100.

    A gif of Patrick Stewart saying But the future is left for us to write

    Website: LINK

  • The Howff 3D scanning rig| The MagPi 99

    The Howff 3D scanning rig| The MagPi 99

    Reading Time: 4 minutes

    How do you create a 3D model of a historic graveyard? With eight Raspberry Pi computers, as Rob Zwetsloot discovers in the latest issue of The MagPi magazine, out now.

    The software builds up the 3D model of the graveyard

    “In the city centre of Dundee is a historical burial ground, The Howff,” says Daniel Muirhead. We should probably clarify that he’s a 3D artist. “This old graveyard is densely packed with around 1500 gravestones and other funerary monuments, which happens to make it an excellent technical challenge for photogrammetry photo capture.”

    This architecture, stone paths, and vibrant flora is why Daniel ended up creating a 3D-scanning rig out of eight Raspberry Pi computers. And the results are quite stunning.

    Eight Raspberry Pi computers are mounted to the ball, with cameras pointing towards the ground

    “The goal of this project was to capture photos for use in generating a 3D model of the ground,” he continues. “That model will be used as a base for attaching individual gravestone models and eventually building up a full composite model of this complex subject. The ground model will also be purposed for rendering an ultra-high-resolution map of the graveyard. The historical graveyard has a very active community group that are engaged in its study and digitisation, the Dundee Howff Conservation Group, so I will be sharing my digital outputs with them.”

    Google graveyard

    There are thousands of pictures, like this one, being used to create the model

    To move the rig throughout the graveyard, Daniel used himself as the major moving part. With the eight Raspberry Pi cameras taking a photo every two seconds, he was able to capture over 180,000 photos over 13 hours of capture sessions.

    “The rig was held above my head and the cameras were angled in such a way as to occlude me from view, so I was not captured in the photographs which instead were focused on the ground,” he explains. “Of the eight cameras, four were the regular model with 53.5 ° horizontal field of view (FoV), and the other four were a wide-angle model with 120 ° FoV. These were arranged on the rig pointing outwards in eight different directions, alternating regular and wide-angle, all angled at a similar pitch down towards the ground. During capture, the rig was rotated by +45 ° for every second position, so that the wide-angles were facing where the regulars had been facing on the previous capture, and vice versa.”
    Daniel worked according to a very specific grid pattern, staying in one spot for five seconds at a time, with the hopes that at the end he’d have every patch of ground photographed from 16 different positions and angles.

    Maker Daniel Muirhead is a 3D artist with an interest in historical architecture

    “With a lot of photo data to scan through for something fairly complex, we wondered how well the system had worked. Daniel tells us the only problems he had were with some bug fixing on his code: “The images were separated into batches of around 10,000 (1250 photos from each of the eight cameras), plugged into the photogrammetry software, and the software had no problem in reconstructing the ground as a 3D model.”

    Accessible 3D surveying

    He’s now working towards making it accessible and low-cost to others that might want it. “Low-cost in the triple sense of financial, labour, and time,” he clarifies. “I have logged around 8000 hours in a variety of photogrammetry softwares, in the process capturing over 300,000 photos with a regular camera for use in such files, so I have some experience in this area.”

    “With the current state of technology, it should be possible with around £1000 in equipment to perform a terrestrial photo-survey of a town centre in under an hour, then with a combined total of maybe three hours’ manual processing and 20 hours’ automated computer processing, generate a high-quality 3D model, the total production time being under 24 hours. It should be entirely plausible for a local community group to use such a method to perform weekly (or at least monthly) 3D snapshots of their town centre.”

    The MagPi issue 99 – Out now

    The MagPi magazine is out now, available in print from the Raspberry Pi Press onlinestore, your local newsagents, and the Raspberry Pi Store, Cambridge.

    You can also download the PDF directly from the MagPi magazine website.

    Website: LINK

  • Haunted House hacks

    Haunted House hacks

    Reading Time: 3 minutes

    Spookify your home in time for Halloween with Rob Zwetsloot and these terror-ific projects!

    We picked four of our favourites from a much longer feature in the latest issue of The MagPi magazine, so make sure you check it out if you need more Haunted House hacks in your life.

    Raspberry Pi Haunted House

    This project is a bit of a mixture of indoors and outdoors, with a doorbell on the house activating a series of spooky effects like a creaking door, ‘malfunctioning’ porch lights, and finally a big old monster mash in the garage.

    A Halloween themed doorbell

    MagPi magazine talked to its creator Stewart Watkiss about it a few years ago and he revealed how he used a PiFace HAT to interface with home automation techniques to create the scary show, although it can be made much easier these days thanks to Energenie. Our favourite part, though, is still the Home Alone-esque monster party that caps it off.

    Check it our for yourself here.

    Eye of Sauron

    It’s a very nice-looking build as well

    The dreaded dark lord Sauron from Lord of the Rings watched over Middle-earth in the form of a giant flaming eye atop his black tower, Barad-dûr. Mike Christian’s version sits on top of a shed in Saratoga, CA.

    The eye of sauron on top of a barn lit in red lights
    Atop the shed with some extra light effects, it looks very scary

    It makes use of the Snake Eyes Bonnet from Adafruit, with some code modifications and projecting onto a bigger eye. Throw in some cool lights and copper wires and you get a nice little effect, much like that from the films.

    There are loads more cool photos on Mike’s original project page.

    Raspberry Pi-powered Jack-o-Lantern

    We love the eyes and scary sounds in this version that seem to follow you around

    A classic indoor Halloween decoration (and outdoor, according to American movies) is the humble Jack-o’-lantern. While you could carve your own for this kind of project (and we’ve seen many people do so), this version uses a pre-cut, 3D-printed pumpkin.

    3D printed pumpkin glowing orange
    The original 3D print lit with a single source is still fairly scary

    If you want to put one outside as well, we highly recommend you add some waterproofing or put it under a porch of some kind, especially if you live in the UK.

    Here’s a video about the project by the maker.

    Scary door

    You’re unlikely to trick someone already in your house with a random door that has appeared out of nowhere, but while they’re investigating they’ll get the scare of their life. This door was created as a ‘sequel’ to a Scary Porch, and has a big monitor where a window might be in the door. There’s also an array of air-pistons just behind the door to make it sound like someone is trying to get out.

    [youtube https://www.youtube.com/watch?v=LL48k6GSOrM?feature=oembed&w=500&h=281]

    There are various videos that can play on the door screen, and they’re randomised so any viewers won’t know what to expect. This one also uses relays, so be careful.

    This project is the brainchild of the element14 community and you can read more about how it was made here.

    The MagPi magazine is out now, available in print from the Raspberry Pi Press onlinestore, your local newsagents, and the Raspberry Pi Store, Cambridge.

    You can also download the PDF directly from the MagPi magazine website.

    Website: LINK

  • 17000ft | The MagPi 98

    17000ft | The MagPi 98

    Reading Time: 5 minutes

    How do you get internet over three miles up the Himalayas? That’s what the 17000 ft Foundation and Sujata Sahu had to figure out. Rob Zwetsloot reports in the latest issue of the MagPi magazine, out now.

    Living in more urban areas of the UK, it can be easy to take for granted decent internet and mobile phone signal. In more remote areas of the country, internet can be a bit spotty but it’s nothing compared with living up in a mountain.

    Tablet computers are provided that connect to a Raspberry Pi-powered network

    “17000 ft Foundation is a not-for-profit organisation in India, set up to improve the lives of people settled in very remote mountainous hamlets, in areas that are inaccessible and isolated due to reasons of harsh mountainous terrain,” explains its founder, Sujata Sahu. “17000 ft has its roots in high-altitude Ladakh, a region in the desolate cold desert of the Himalayan mountain region of India. Situated in altitudes upwards of 9300 ft and with temperatures dropping to -50°C in inhabited areas, this area is home to indigenous tribal communities settled across hundreds of tiny, scattered hamlets. These villages are remote, isolated, and suffer from bare minimum infrastructure and a centuries-old civilisation unwilling but driven to migrate to faraway cities in search of a better life. Ladakh has a population of just under 300,000 people living across 60,000 km2 of harsh mountain terrain, whose sustenance and growth depends on the infrastructure, resources, and support provided by the government.”

    A huge number of students have already benefited from the program

    The local governments have built schools. However, they don’t have enough resources or qualified teachers to be truly effective, resulting in a problem with students dropping out or having to be sent off to cities. 17000 ft’s mission is to transform the education in these communities.

    High-altitude Raspberry Pi

    “The Foundation today works in over 200 remote government schools to upgrade school infrastructure, build the capacity of teachers, provide better resources for learning, thereby improving the quality of education for its children,” says Sujata. “17000 ft Foundation has designed and implemented a unique solar-powered offline digital learning solution called the DigiLab, using Raspberry Pi, which brings the power of digital learning to areas which are truly off-grid and have neither electricity nor mobile connectivity, helping children to learn better, while also enabling the local administration to monitor performance remotely.”

    Each school is provided with solar power, Raspberry Pi computers to act as a local internet for the school, and tablets to connect to it. It serves as a ‘last mile connectivity’ from a remote school in the cloud, with an app on a teacher’s phone that will download data when it can and then update the installed Raspberry Pi in their school.

    Remote success

    “The solution has now been implemented in 120 remote schools of Ladakh and is being considered to be implemented at scale to cover the entire region,” adds Sujata. “It has now run successfully across three winters of Ladakh, withstanding even the harshest of -50°C temperatures with no failure. In the first year of its implementation alone, 5000 students were enrolled, with over 93% being active. The system has now delivered over 60,000 hours of learning to students in remote villages and improved learning outcomes.”

    Not all children stay in the villages year round

    It’s already helping to change education in the area during the winter. Many villages (and schools) can shut down for up to six months, and families who can’t move away are usually left without a functioning school. 17000 ft has changed this.

    “In the winter of 2018 and 2019, for the first time in a few decades, parents and community members from many of these hamlets decided to take advantage of their DigiLabs and opened them up for their children to learn despite the harsh winters and lack of teachers,” Sujata explains. “Parents pooled in to provide basic heating facilities (a Bukhari – a wood- or dung-based stove with a long pipe chimney) to bring in some warmth and scheduled classes for the senior children, allowing them to learn at their own pace, with student data continuing to be recorded in Raspberry Pi and available for the teachers to assess when they got back. The DigiLab Program, which has been made possible due to the presence of the Raspberry Pi Server, has solved a major problem that the Ladakhis have been facing for years!”

    Some of the village schools go unused in the winter

    How can people help?

    Sujata says, “17000 ft Foundation is a non-profit organisation and is dependent on donations and support from individuals and companies alike. This solution was developed by the organisation in a limited budget and was implemented successfully across over a hundred hamlets. Raspberry Pi has been a boon for this project, with its low cost and its computing capabilities which helped create this solution for such a remote area. However, the potential of Raspberry Pi is as yet untapped and the solution still needs upgrades to be able to scale to cover more schools and deliver enhanced functionality within the school. 17000 ft is very eager to help take this to other similar regions and cover more schools in Ladakh that still remain ignored. What we really need is funds and technical support to be able to reach the good of this solution to more children who are still out of the reach of Ed Tech and learning. We welcome contributions of any size to help us in this project.”

    For donations from outside India, write to sujata.sahu@17000ft.org. Indian citizens can donate through 17000ft.org/donate.

    The MagPi magazine is out now, available in print from the Raspberry Pi Press onlinestore, your local newsagents, and the Raspberry Pi Store, Cambridge.

    You can also download the PDF directly from the MagPi magazine website.

    Subscribers to the MagPi for 12 months get a free Adafruit Circuit Playground, or can choose from one of our other subscription offers, including this amazing limited-time offer of three issues and a book for only £10!

    Website: LINK

  • Atomic TV | The MagPi 97

    Atomic TV | The MagPi 97

    Reading Time: 4 minutes

    Nothing on television worth watching? Ryan Cochran’s TV set is just as visually arresting when it’s turned off, as David Crookes reports in the latest issue of the MagPi magazine, out now.

    Flat-screen televisions, with their increasingly thin bezels, are designed to put the picture front and centre. Go back a few decades, however, and a number of TVs were made to look futuristic – some even sported space age designs resembling astronaut helmets or flying saucers sat upon elaborate stands. They were quirky and hugely fun.

    Maker Ryan Cochran’s project evokes such memories of the past. “I have a passion for vintage modern design and early NASA aesthetics, and I wanted to make something which would merge the two into an art piece that could fit on my shelf,” he recalls. “The first thing I could think of was a small television.” And so the idea for the Atomic TV came into being.

    Made of wood and using spare tech parts left over from a couple of past projects, it’s a television that’s as compelling to look at when it’s turned off as when it’s playing videos on a loop. “My main concern was fit and finish,” he says. “I didn’t want this thing to look amateurish at all. I wanted it to look like a professionally built prototype from 1968.”

    Turn on

    Before he began planning the look of the project, Ryan wanted to make sure everything would connect. “The parts sort of drove the direction of the project, so the first thing I did was mock everything up without a cabinet to make sure everything worked together,” he says.

    This posed some problems. “The display is 12 volts, and I would have preferred to simplify things by using one of the 5-volt displays on the market, but I had what I had, so I figured a way to make it work,” Ryan explains, discovering the existence of a dual 5 V-12 V power supply.

    With a Raspberry Pi 4 computer, the LCD display, a driver board, and a pair of USB speakers borrowed from his son all firmly in hand, he worked on a way of controlling the volume and connected everything up.

    “Power comes in and goes to an on/off switch,” he begins. “From there, it goes to the dual voltage power supply with the 12 V running the display and the 5 V running Raspberry Pi 4 and the small amp for the speakers. Raspberry Pi runs Adafruit’s Video Looper script and pulls videos from a USB thumb drive. It’s really simple, and there are no physical controls other than on/off switch and volume.”

    Tune in

    The bulk of the work came with the making of the project’s housing. “I wanted to nod the cap to Tom Sachs, an artist who does a lot of work I admire and my main concern was fit and finish,” Ryan reveals.

    He filmed the process from start to end, showing the intricate work involved, including a base created from a cake-stand and a red-and-white panel for the controls. To ensure the components wouldn’t overheat, a fan was also included.

    “The television runs 24/7 and it spends 99 percent of its time on mute,” says Ryan. “It’s literally just moving art that sits on my shelf playing my favourite films and video clips and, every now and then, I’ll look over, notice a scene I love, and turn up the volume to watch for a few minutes. It’s a great way to relax your brain and escape reality every now and then.”

    Get The MagPi magazine issue 97 — out today

    The MagPi magazine is out now, available in print from the Raspberry Pi Press onlinestore, your local newsagents, and the Raspberry Pi Store, Cambridge.

    You can also download the PDF directly from the MagPi magazine website.

    Subscribers to the MagPi for 12 months get a free Adafruit Circuit Playground, or can choose from one of our other subscription offers, including this amazing limited-time offer of three issues and a book for only £10!

    Website: LINK

  • (Raspberry) Pi Commander | The MagPi 95

    (Raspberry) Pi Commander | The MagPi 95

    Reading Time: 4 minutes

    Adrien Castel’s idea of converting an old electronic toy into a retro games machine was no flight of fancy, as David Crookes discovers

    The 1980s was a golden era for imaginative electronic toys. Children would pester their parents for a Tomytronic 3D or a Nintendo Game & Watch. And they would enviously eye anyone who had a Tomy Turnin’ Turbo Dashboard with its promise of replicating the thrill of driving (albeit without the traffic jams).

    All of the buttons, other than the joystick, are original to the toy – as are the seven red LED lights

    Two years ago, maker Matt Brailsford turned that amazing toy into a fully working Out Run arcade machine and Adrien Castel was smitten. “I loved the fact that he’d upcycled an old toy and created something that could be enjoyed as a grown-up,” he says. “But I wanted to push the simulation a bit further and I thought a flying sim could do the trick.”

    “I didn’t want to modify the look of the toy”

    Ideas began flying around Adrien’s mind. “I knew what I wanted to achieve so I made an overall plan in my head,” he recalls. First he found the perfect toy: a battery-powered Sky Fighter F-16 tabletop game made by Dival. He then decided to base his build around a Raspberry Pi 3A+. “It’s the perfect hardware for projects like this because of its flexibility,” Adrien says.

    Taking off

    The toy needed some work. Its original bright red joystick was missing and Adrien knew he’d have to replace the original screen with a TFT LCD. To do this, he 3D-printed a frame to fit the TFT display and he created a smaller base for the replacement joystick. Adrien also changed the microswitches for greater sensitivity but he didn’t go overboard with the changes.

    The games can make use of the full screen. Adrien would have liked a larger screen, but the original ratio oddly lay between 4:3 and 16:9, making a bigger display harder to find

    “I knew I would have to adapt some parts for the joystick and for the screen, but I didn’t want to modify the look of the toy,” Adrien explains. “To be honest, modifying the toy would have involved some sanding and painting and I was worried that it would ruin the overall effect of the project if it was badly executed.”

    A Raspberry Pi 3A+ sits at the heart of the Pi Commander, alongside a mini audio amplifier, and it’s wired up to components within the toy

    As such, a challenge was set. “I had to keep most of the original parts such as throttle levers and LEDs and adapt them to the new build,” he says. “This meant getting them to work together with the system and it also meant using the original PCB, getting rid of the components and re-routing the electronics to plug on the GPIOs.”

    There were some enhancements. Adrien soldered a PAM8403 3W class-D audio amplifier to Raspberry Pi and this allowed a basic speaker to replace the original for better sound. But there were some compromises too.

    The original PCB was used and the electronics were re-routed. All the components need to work between 3.3 to 5V with the lowest possible amperage while fitting into a tight space

    “At first I thought the screen could be bigger than the one I used, but the round shape of the cockpit didn’t give much space to fit a screen larger than four inches.” He also believes the project could be improved with a better joystick: “The one I’ve used is a simple two-button arcade stick with a jet fighter look.”

    Flying high

    By using the retro gaming OS Recalbox (based on EmulationStation and RetroArch), however, he’s been able to perfect the overall feel. “Recalbox allowed me to create a custom front end that matches the look of a jet fighter,” he explains. It also means the Pi Commander plays shoot-’em-up games alongside open-source simulators like FlightGear (flightgear.org). “It’s a lot of fun.”

    Read The MagPi for free!

    Find more fantastic projects, tutorials, and reviews in The MagPi #93, out now! You can get The MagPi #95 online at our store, or in print from all good newsagents and supermarkets. You can also access The MagPi magazine via our Android and iOS apps.

    Don’t forget our super subscription offers, which include a free gift of a Raspberry Pi Zero W when you subscribe for twelve months.

    And, as with all our Raspberry Pi Press publications, you can download the free PDF from our website.

    Website: LINK

  • Special offer for magazine readers

    Special offer for magazine readers

    Reading Time: 2 minutes

    You don’t need me to tell you about the unprecedented situation that the world is facing at the moment. We’re all in the same boat, so I won’t say anything about it other than I hope you stay safe and take care of yourself and your loved ones.

    The other thing I will say is that every year, Raspberry Pi Press produces thousands of pages of exciting, entertaining, and often educational content for lovers of computing, technology, games, and photography.

    In times of difficulty, it’s not uncommon for people to find solace in their hobbies. The problem you’ll find yourself with is that it’s almost impossible to buy a magazine at the moment, at least in the UK: most of the shops that sell them are closed (and even most of their online stores are too).

    We’re a proactive bunch, so we’ve done something about that:

    From today, you can subscribe to The MagPi, HackSpace magazine, Custom PC, or Digital SLR Photography at a cost of three issues for £10 in the UK – and we’re giving you a little extra too.

    We like to think we produce some of the best-quality magazines on the market today (and you only have to ask our mums if you want a second opinion). In fact, we’d go as far as to say our magazines are exactly the right mix of words and pictures for making the most of all the extra home-time you and your loved ones are having.

    Take your pick for three issues at £10 and get a free book worth £10!

    If you take us up on this offer, we’ll send the magazines direct to your door in the UK, with free postage. And we’re also adding a gift to thank you for signing up: on top of your magazines, you’ll get to choose a book that’s worth £10 in itself.

    In taking up this offer, you’ll get some terrific reading material, and we’ll deliver it all straight to you — no waiting around. You’ll also be actively supporting our print magazines and the charitable work of the Raspberry Pi Foundation.

    I hope that among our magazines, you’ll find something that’s of interest to you or, even better yet, something that sparks a new interest. Enjoy your reading!

    Website: LINK

  • Upcycle a vintage TV with the Raspberry Pi TV HAT | The MagPi #78

    Upcycle a vintage TV with the Raspberry Pi TV HAT | The MagPi #78

    Reading Time: 4 minutes

    When Martin Mander’s portable Hitachi television was manufactured in 1975, there were just three UK channels and you’d need to leave the comfort of your sofa in order to switch between them.

    A page layout of the upcycled vintage television project using the Raspberry Pi TV HAT from The MagPi issue 78

    Today, we have multiple viewing options and even a cool Raspberry Pi TV HAT that lets us enjoy DVB-T2 broadcasts via a suitable antenna. So what did nostalgia-nut Martin decide to do when he connected his newly purchased TV HAT to the Pi’s 40-pin GPIO header? Why, he stuck it in his old-fashioned TV set with a butt-busting rotary switch and limited the number of channels to those he could count on one hand – dubbing it “the 1982 experience” because he wanted to enjoy Channel 4 which was launched that year.

    Going live

    Martin is a dab hand at CRT television conversions (he’s created six since 2012, using monitors, photo frames, and neon signs to replace the displays). “For my latest project, I wanted to have some fun with the new HAT and see if I’d be able to easily display and control its TV streams on some of my converted televisions,” he says. It’s now being promoted to his office, for some background viewing as he works. “I had great fun getting the TV HAT streams working with the rotary dial,” he adds.

    Raspberry Pi TV HAT

    The project was made possible thanks to the new Raspberry Pi TV HAT

    Although Martin jumped straight into the HAT without reading the instructions or connecting an aerial, he eventually followed the guide and found getting it up-and-running to be rather straightforward. He then decided to repurpose his Hitachi Pi project, which he’d already fitted with an 8-inch 4:3 screen.

    Upcycled television using the Raspberry Pi TV HAT

    The boards, screen, and switches installed inside the repurposed Hitachi television

    “It’s powered by a Pi 3 and it already had the rotary dial set up and connected to the GPIO,” he explains. “This meant I could mess about with the TV HAT, but still fall back on the original project’s script if needed, with no hardware changes required.”

    Change the channel

    Indeed, Martin’s main task was to ensure he could switch channels using the rotary dial and this, he says, was easier to achieve than he expected. “When you go to watch a show from the Tvheadend web interface, it downloads an M3U playlist file for you which you can then open in VLC or another media player,” he says.

    Upcycled television using the Raspberry Pi TV HAT

    – The Hitachi television is fitted with a Pimoroni 8-inch 4:3 screen and a Raspberry Pi 3
    – Programmes stream from a Pi 2 server and the channels are changed by turning the dial
    – The name of the channel briefly appears at the bottom of the screen – the playlist files are edited in Notepad

    “At first, I thought the playlist file was specific to the individual TV programme, as the show’s name is embedded in the file, but actually each playlist file is specific to the channel itself, so it meant I could download a set of playlists, one per channel, and store them in a folder to give me a full range of watching options.”

    Sticking to his theme, he stored playlists for the four main channels of 1982 (BBC1, BBC2, ITV, and Channel 4) in a folder and renamed them channel1, channel2, channel3, and channel4.

    Upcycled television using the Raspberry Pi TV HAT

    A young Martin Mander decides the blank screen of his black and white Philips TX with six manual preset buttons is preferable to the shows (but he’d like to convert one of these in the future)

    “Next, I created a script with an infinite loop that would look out for any action on the GPIO pin that was wired to the rotary dial,” he continues. “If the script detects that the switch has been moved, then it opens the first playlist file in VLC, full-screen. The next time the switch moves, the script loops around and adds ‘1’ to the playlist name, so that it will open the next one in the folder.”

    Martin is now planning the next stage of the project, considering expanding the channel-changing script to include streams from his IP cameras, replacing a rechargeable speaker with a speaker HAT, and looking to make the original volume controls work with the Pi’s audio. “It been really satisfying to get this project working, and there are many possibilities ahead,” he says.

    More from The MagPi magazine

    The MagPi magazine issue 78 is out today. Buy your copy now from the Raspberry Pi Press store, major newsagents in the UK, or Barnes & Noble, Fry’s, or Micro Center in the US. Or, download your free PDF copy from The MagPi magazine website.

    The MagPi magazine issue 78

    Subscribe now

    Subscribe to The MagPi magazine on a monthly, quarterly, or twelve-month basis to save money against newsstand prices!

    Twelve-month print subscribers get a free Raspberry Pi 3A+, the perfect Raspberry Pi to try your hand at some of the latest projects covered in The MagPi magazine.

    Website: LINK

  • MagPi 76: our updated Raspberry Pi Superguide!

    MagPi 76: our updated Raspberry Pi Superguide!

    Reading Time: 3 minutes

    Hi folks, Rob from The MagPi here! The holiday season will soon be upon us, and that means a lot of Raspberry Pis will be given as gifts. For all these new Pi users, we thought it was time to update our beginners’ guide for 2019 in issue 76 of The MagPi, out now!

    And yes, this includes the brand-new 3A+.

    Look, up on the magazine rack!

    Is it a bird? A plane? No, it’s Superguide!

    In this Superguide, we’ll take you through the initial setup of the Pi, we’ll help you familiarise yourself with it, and we’ll even show you a couple of fun Pi projects to get started with! Whether you’re a complete newbie to Raspberry Pi or you want need a little refresher, our guide has got you covered.

    Superb

    3A+ subscription offer!

    Speaking of the Raspberry Pi 3A+, we have a full feature on the fresh addition to the Raspberry Pi family, including all the juicy benchmarks, stats, and info you’d ever want to know. There’s even an interview with Eben Upton and Roger Thornton about its development!

    In fact, we love the 3A+ so much that we’re offering a brand-new, limited-time subscription offer: sign up for a twelve-month print subscription of The MagPi now, and you’ll get a Raspberry Pi 3A+ completely free!

    Hurry though, this offer only runs as long as stocks last.

    Be quick, this offer won’t be around forever!

    Heads, Pac-Man, and Christmas lights

    Of course, there also are amazing projects, guides, and reviews in this issue. This includes As We Are, a mesmerising art project that displays people’s faces on a 14-foot tall screen shaped like a head. We also show you how to start making Pac-Man in our monthly Pygame tutorial, and our smart lights guide has a bit of a festive flair to it.

    Get The MagPi 76

    You can get The MagPi 76 from WHSmith, Tesco, Sainsbury’s, and Asda. If you live in the US, head over to your local Barnes & Noble or Micro Center in the next few days for a print copy. You can also get the issue online: check it out on our store, or digitally via our Android or iOS apps. And don’t forget, there’s always the free PDF.

    Rolling subscription offer!

    Want to support the Raspberry Pi Foundation and the magazine? As well as the subscription mentioned above, you can now take out a monthly £5 subscription to the magazine, effectively creating a rolling pre‑order system that saves you money on each issue.

    The MagPi subscription offer — The MagPi 75

    That’s it for now! I’ll see you next time around Christmas.

    Website: LINK

  • MagPi 65: Newbies Guide, and something brand new!

    MagPi 65: Newbies Guide, and something brand new!

    Reading Time: 3 minutes

    Hey folks, Rob from The MagPi here! We know many people might be getting their very first Raspberry Pi this Christmas, and excitedly wondering “what do I do with it?” While we can’t tell you exactly what to do with your Pi, we can show you how to immerse yourself in the world of Raspberry Pi and be inspired by our incredible community, and that’s the topic of The MagPi 65, out today tomorrow (we’re a day early because we’re simply TOO excited about the special announcement below!).

    The one, the only…issue 65!

    Raspberry Pi for Newbies

    Raspberry Pi for Newbies covers some of the very basics you should know about the world of Raspberry Pi. After a quick set-up tutorial, we introduce you to the Raspberry Pi’s free online resources, including Scratch and Python projects from Code Club, before guiding you through the wider Raspberry Pi and maker community.

    Raspberry Pi MagPi 65 Newbie Guide

    Pages and pages of useful advice and starter projects

    The online community is an amazing place to learn about all the incredible things you can do with the Raspberry Pi. We’ve included some information on good places to look for tutorials, advice and ideas.

    And that’s not all

    Want to do more after learning about the world of Pi? The rest of the issue has our usual selection of expert guides to help you build some amazing projects: you can make a Christmas memory game, build a tower of bells to ring in the New Year, and even take your first steps towards making a game using C++.

    Raspberry Pi MagPi 65

    Midimutant, the synthesizer “that boinks endless strange sounds”

    All this along with inspiring projects, definitive reviews, and tales from around the community.

    Raspberry Pi Annual

    Issue 65 isn’t the only new release to look out for. We’re excited to bring you the first ever Raspberry Pi Annual, and it’s free for MagPi subscribers – in fact, subscribers should be receiving it the same day as their issue 65 delivery!

    If you’re not yet a subscriber of The MagPi, don’t panic: you can still bag yourself a copy of the Raspberry Pi Annual by signing up to a 12-month subscription of The MagPi before 24 January. You’ll also receive the usual subscriber gift of a free Raspberry Pi Zero W (with case and cable).  Click here to subscribe to The MagPi – The Official Raspberry Pi magazine.

    Ooooooo…aaaaaahhhhh…

    The Raspberry Pi Annual is aimed at young folk wanting to learn to code, with a variety of awesome step-by-step Scratch tutorials, games, puzzles, and comics, including a robotic Babbage.

    Get your copy

    You can get The MagPi 65 and the Raspberry Pi Annual 2018 from our online store, and the magazine can be found in the wild at WHSmith, Tesco, Sainsbury’s, and Asda. You’ll be able to get it in the US at Barnes & Noble and Micro Center in a few days’ time. The MagPi 65 is also available digitally on our Android and iOS apps. Finally, you can also download a free PDF of The MagPi 65 and The Raspberry Pi Annual 2018.

    We hope you have a merry Christmas! We’re off until the New Year. Bye!

    Website: LINK

  • MagPi 64: get started with electronics

    MagPi 64: get started with electronics

    Reading Time: 2 minutes

    Hey folks, Rob here again! You get a double dose of me this month, as today marks the release of The MagPi 64. In this issue we give you a complete electronics starter guide to help you learn how to make circuits that connect to your Raspberry Pi!

    The front cover of MagPi 64

    MAGPI SIXTY-FOOUUUR!

    Wires, wires everywhere!

    In the electronics feature, we’ll teach you how to identify different components in circuit diagrams, we’ll explain what they do, and we’ll give you some basic wiring instructions so you can take your first steps. The feature also includes step-by-step tutorials on how to make a digital radio and a range-finder, meaning you can test out your new electronics skills immediately!

    Christmas tutorials

    Electronics are cool, but what else is in this issue? Well, we have exciting news about the next Google AIY Projects Vision kit, which forgoes audio for images, allowing you to build a smart camera with your Raspberry Pi.

    We’ve also included guides on how to create your own text-based adventure game and a kaleidoscope camera. And, just in time for the festive season, there’s a tutorial for making a 3D-printed Pi-powered Christmas tree star. All this in The MagPi 64, along with project showcases, reviews, and much more!

    Kaleido Cam

    Using a normal web cam or the Raspberry Pi camera produce real time live kaleidoscope effects with the Raspberry Pi. This video shows the normal mode, along with an auto pre-rotate, and a horizontal and vertical flip.

    Get The MagPi 64

    Issue 64 is available today from WHSmith, Tesco, Sainsbury’s, and Asda. If you live in the US, head over to your local Barnes & Noble or Micro Center in the next few days. You can also get the new issue online from our store, or digitally via our Android and iOS apps. And don’t forget, there’s always the free PDF as well.

    Subscribe for free goodies

    Want to support the Raspberry Pi Foundation and the magazine, and get some cool free stuff? If you take out a twelve-month print subscription to The MagPi, you’ll get a Pi Zero W, Pi Zero case, and adapter cables absolutely free! This offer does not currently have an end date.

    We hope you enjoy this issue!

    Nintendo Sixty-FOOOOOOOOOOUR

    Brandon gets an n64 for christmas 1998 and gets way too excited inquiries about usage / questions / comments? n64kids@gmail.com © n64kids.com

    Website: LINK

  • MagPi 63: build the arcade cabinet of your dreams

    MagPi 63: build the arcade cabinet of your dreams

    Reading Time: 2 minutes

    Hi folks, Rob from The MagPi here! Issue 63 is now available, and it’s a huge one: we finally show you how to create the ultimate Raspberry Pi arcade cabinet in our latest detailed tutorial, so get some quarters and your saw ready.

    MagPi 63

    Totally awesome video game builds!

    The 16-page-long arcade machine instructions cover everything from the tools you need and how to do the woodwork, to setting up the electronics. In my spare time, I pretend to be Street Fighter baddie M. Bison, so I’m no stranger to arcade machines. However, I had never actually built one — luckily, the excellent Bob Clagett of I Like To Make Stuff was generous enough to help out with this project. I hope you enjoy reading the article, and making your own cabinet, as much as I enjoyed writing and building them.

    Projects for kids

    Retro gaming isn’t the only thing you’ll find in this issue of The MagPi though. We have a big feature called Junior Pi Projects, which we hope will inspire young people to make something really cool using Scratch or Python.

    As usual, the new issue also includes a collection of other tutorials for you to follow, for example for building a hydroponic garden, or making a special MIDI box. There are also fantastic maker projects to read up on, and reviews to tempt your wallet.

    MagPi 63

    The kids are alright

    Get The MagPi 63

    You can grab The MagPi 63 right now from WH Smith, Tesco, Sainsbury’s, and Asda. If you live in the US, check out your local Barnes & Noble or Micro Center in the next few days. You can also get the new issue online from our store, or digitally via our Android or iOS apps. And don’t forget, there’s always the free PDF as well.

    Subscribe for free goodies

    Want to support the Raspberry Pi Foundation, the magazine, and get some cool free stuff? If you take out a twelve-month print subscription to The MagPi, you’ll get a Pi Zero W, Pi Zero case, and adapter cables absolutely free! This offer does not currently have an end date.

    That’s it for this month! We’re off to play some games.

    Website: LINK