Innehållsförteckning för #150 från Raspberry Pi Official Magazine

We've made it all the way to issue 150! This is a huge achievement and a testament to the strength of the Raspberry Pi community, the incredible team of writers, and the company itself. I'm slightly in awe of you all! I strongly believe in printed publications and physical products in general. Making hardware is tough; making print magazines is also hard. The stakes are high and you have to think about what you include; and what you leave out. This month, the whole team came together to write about 150 People & Projects (page 42). This massive feature takes up almost a fifth of our magazine and was a labour of love. In it, you'll find all the biggest projects, best people, and brightest shining products of the last…

Warning! Medical care Be careful reading your own blood pressure and taking other measurements. You should not use homemade tools to diagnose medical problems. magpi.cc/bpreading MAKER Miloš Rašić is an electrical engineer specialising in robotics, biotech, and drone technology. He is passionate about open-source projects and creating innovative, functional designs. magpi.cc/ocsmdevice Keeping track of blood pressure is crucial for maintaining good health, especially when managing heart-related conditions. Electrical engineer Miloš Rašić knows this only too well. “Like most older people, my grandma suffers from elevated blood pressure, so a digital pressure monitor is something that is being used daily in the household,” he says. But he also noticed the machines can be flawed. “Different monitors have provided widely different measurements and their performance was highly dependent on their battery level,…

MAKER Richard Wylde FREng “runs a couple of scientific instrument businesses that currently mainly build parts for weather satellites”. terahertz.co.uk Richard Wylde describes himself as “a sort of physicist and engineer living between the business and academic worlds” whose passion for cave diving is “closer to an obsession than a hobby”. He is co-founder of Terahertz, an advanced engineering company which, among other impressive achievements, developed remote sensing instruments for the European Space Agency's EarthCARE mission (magpi.cc/cloudradar). Richard is also one of several experienced cave explorers involved in mapping the subterranean network of cenotes [sinkholes] in Yucatan, Mexico. “The caves are stunningly beautiful and [mapping them] is technically difficult,” he says. “A lot of effort goes into staying alive.” Acoustic and magnetic mapping can help plot the location and direction…

hortus.dev Introverts aren't shy, quiet creatures that need to stay at home all day – it's more complicated than that. Where extroverts thrive on social interaction, introverts find it takes a bit of energy to be around other people. When they're feeling full of social energy it's fun to socialise; when that social battery is drained, they need to read a book, go for a walk, or conduct some other solitary activity in order to recharge. That's something that a lot of people don't understand, but the next time you're at a conference and you need a break from people, you can spell it out with the aid of this Social Battery by David Capper. This is David's first attempt at designing for production and sale. As anyone knows who's…

@Concretedog With a house and shed full of lathes, milling machines, 3D printers and more, Jo is a constant tinkerer and is passionate about making. Obsessed with rockets and robots and much more besides, he often releases designs and projects as open-source. A while ago, we published an article about a simple CNC conversion of a small lathe. In that project, I made some 3D printed adapters and mounted stepper motors to drive the previously manually operated moving sections and looked at creating custom G-codes to drive the machine and create simple parts. Whilst the small CNC lathe had some limitations, it was a simple enough project that developed confidence in custom CNC approaches. Building on some of the skills developed on that project, I wanted to look at making…

IPEM PIHAT ATM90 MAINS POWER ENERGY MONITOR “As an extension to my STEM ESP32-based Home Automation Power Energy Monitors, a new expanded version has been designed for flavours of the Raspberry Pi – the IPEM PiHat… a Power Energy Monitor is hardware that essentially safely samples and collects data via one or more CT Cable Clamps. This then allows the user, through the software, to report and analyse electric energy usage. Some other examples of my monitor boards are shown below.” kck.st/3Pqc38X PILET “Pilet is a retro-futuristic, open-source mini-computer powered by the Raspberry Pi 5. With 7-hour battery life and fully modifiable hardware and software, it's built for tinkerers, creatives, learners, and coders who want total freedom. Escape the limitations of closed devices and locked-down systems and bring the fun…

NAME CHANGE! We have big news. Next month we are changing the name of the magazine to Raspberry Pi magazine. We've always been tremendously proud of The MagPi. Our magazine started out as a community fanzine and was handed over to Eben Upton, Raspberry Pi's co-founder. From issue 31, we have always referred to ourselves as “The official Raspberry Pi magazine”. Now we're making it legitimate. This is a big and significant move for us. We think it's absolutely the right thing to do. Raspberry Pi magazine exists to unite the community around this fabulous computer that we all build and share projects with. Every year a lot of new Raspberry Pi owners discover us. Especially coding and engineering newcomers who are building projects with a computer for the first…

MAKER Eugene Tkachenko is “an open-minded enthusiast” who enjoys designing and presenting videos about his various tech builds. magpi.cc/lawnygit Warning! Sharp blades Lawny contains powerful blades that could cause significant damage or injury. Always keep it in sight while operating, remove any obstacles well in advance of its approach, and follow standard guidance on safely operating a lawn-mower. magpi.cc/mowersafety Mowing the lawn is the sort of chore that lends itself well to automation. It also provides a focused outlet for those who prefer to find fixes to common problems rather than embrace the mindful qualities of repetitive back-and-forth mowing. Eugene Tkachenko is just such a maker: he has 15 years of project development under his belt using various types of technology and is also the guardian of a sizable lawn…

magpi.cc/mohitbhoite This is the latest circuit sculpture in a series inspired by planetary landing craft, made by the artist/engineer Mohit Bhoite. It uses the Photon 2 board, which itself is based on the Adafruit Feather form factor. The circuit includes a battery, a 170×320 IPS TFT display and a few sensors, data from which are displayed on the screen. If you were to do this yourself on a breadboard you'd be pretty pleased, but the difference here is of course the sculptural element: the whole thing is a big circuit. We've seen a few circuit sculptures in these pages before now, and we're always blown away by how good they look. We even had a go at it ourselves once, and it's a lot harder than it looks. Because the…

A long-time Raspberry Pi user and tinkerer, Phil is a freelance writer and editor with a focus on technology. Warning! Batteries Take extra care when using rechargeable lithium batteries. Ensure their polarity is correct when inserting/ connecting and always use a suitable power management board to charge them. magpi.cc/batterysafety For an outdoor or remotely located Raspberry Pi single-board computer or Pico project with no mains power available, the obvious solution is to use some sort of rechargeable battery pack, but having to remove the latter periodically for recharging isn't ideal. So why not use the power of the sun to keep the batteries charged and power your project? As well as being convenient, it's free power. First things first, you can't just point a solar panel at the sun and…

MAKER K.G. got audio production qualification once upon a time, but mostly presses buttons at random until things sound good. Check out their Soundcloud: soundcloud.com/1351 eldritch.cafe/@HauntedOwlbear You'll Need > 30×30×5 cm acoustic foam tiles magpi.cc/acousticabsorb > 3M VHB 5952 foam tape magpi.cc/vhb5952 > Scissors, scalpel, cutting board This feature focuses on voice recording and very basic instrument recording – if you need to record a full band on a regular basis, you're looking at a more involved studio setup with a full room which should lean into techniques like building rockwool panels and bass traps. A garage is both the stereotypical rehearsal and recording space, and a good choice. But if, like us, you don't have an unused indoor garage going spare, you can turn a wide variety of small spaces into…

Every Monday we ask the question: have you made something with a Raspberry 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 remember to follow along at the hashtag #MagPiMonday!…

Hardware thoughts Unless I misunderstand the specification, Raspberry Pi 500 does not have facility for SSD storage - surely there is room on the PCB? Also, it comes with 8GB of RAM, yet I see that the new Compute Module will soon have a 16GB of RAM option, as well as an SSD storage option on the IO board. Maybe I should wait until the 16GB Compute Module 5 is available and use that as my desktop device? On a slightly different topic, but hardware related: monitors. I know why monitors are landscape format - the original devices used CRT tubes from TV and these were landscape devices to show films (which have always been landscape in format). Yet (almost all) books and publications are portrait format. I see the…

Well, the secret is out – from next issue, we'll no longer be The MagPi but instead transform into Raspberry Pi magazine. I understand change can be scary, so straight away I want to assure you that you'll still get the same selection of amazing projects, brilliant tutorials, expert reviews, and community round-ups that you've come to expect from the magazine over the last decade. Ever since we absorbed HackSpace into The MagPi, we've been trying to figure out how to integrate the articles into the joint magazine. Personally, the kind of things we got out of a HackSpace section have been the kind of articles we've been missing in the magazine for a little while, so I was excited to see them in The MagPi. However, the separate HackSpace…

MAKER Graham Hooley – aka Graham Tinkers – loves to tinker and repair old 8- and 16-bit computers. He shares his passion for them via his YouTube channel. youtube.com/c/grahamtinkers As many computer archivists will confirm, floppy disks don't last forever. Although some will fare better than others, magnetic media generally degrades over time and disks can also fail due to dirt and dust if they're not stored properly. It's vital to archive them to a different media format as soon as possible to retain data. The trouble is that archival can be a cumbersome, long-winded process; unless you have an innovative device to hand. Maker and developer Graham Hooley has created such a tool – a machine that allows a bunch of 3.5-inch floppies to be stacked and automatically read…

MAKER Mia, Rishi, Robin, Roland, and William are a team of Year 10 students from Peterborough who took part in the CanSat UK competition. magpi.cc/cansat What would you do if you had to create a satellite the size of a drinks can? The yearly CanSat competition for students in their teens asks this question and many teams have answered – including LittleBlueDot. “The challenge for students is to fit all the major subsystems found in a satellite, such as power, sensors and a communication system, into this minimal volume,” the team tell us. They came third in the country for their final build. As the competition instructions explain, “After building their CanSat, teams will be invited to launch events across the UK to launch their CanSats on small rockets, with…

Can you believe we made it all the way to issue 150? This is an astounding feat amazing people and projects in the Raspberry Pi community. To celebrate, the whole team has come together to list 150 projects, people, and the Raspberry Pi products that powered them. Here they are, as they say on television shows, “in no particular order!” Because we think they are all wonderful. Big Builds 1. PeggyBoard We like a big, massive build here at The MagPi and few come larger than this climbing wall. PeggyBoard is an interactive climbing wall powered by a Raspberry Pi that allows the user to set specified routes using a web app which also allows them to save routes or load old ones. › magpi.cc/139 2. Olga The Fortune Teller…

@robmiles Rob Miles has been playing with hardware and software since almost before there was hardware and software. You can find out more about his so-called life at robmiles.com. This project was created for an event celebrating 50 years of Computer Science at Hull University (hullcs50.com). A local company formed by Hull graduates was offering to buy all the attendees a drink, but how would this be managed? The obvious solution was to give out paper drink tokens, but this was thought technically boring. Instead, the delegates were given RFID cards and a reader at the bar ensured that the holder of a card was entitled to one drink. Then, if funds permitted, the system would be reset, allowing another round. Figure 1 shows the author being denied a drink…

01. PLUG Monthly talk/seminar Tuesday 11 February Riff/Spacecubed, Perth, Australia magpi.cc/plug150 Perth Linux Users Group are a not-for-profit for anyone interested in Unix, Linux, Free Software, Open Source software & Technology. They have many members all over Western Australia. 02. Perth Raspberry Jam Tuesday 11 March Riff/Spacecubed, Perth, Australia magpi.cc/prj150 The evening will be mostly informal, but there will be an opportunity for lightning talks, so if you would like to give a short presentation about your Raspberry Pi project, please let the committee know by email to committee@plug.org.au. 03. 7th Annual Raspberry Jam West Virginig Saturday 15 March Geary Student Union, Charleston, WV, USA magpi.cc/rjwv150 Raspberry Jam WV is an exciting event celebrating creativity, innovation, and hands-on learning! Open to ages 10 and up, it offers free programming workshops…