Innehållsförteckning för #145 från Raspberry Pi Official Magazine

Our recent release of the Raspberry Pi AI Kit (magpi.cc/aikit) got quite a bit of attention from the community. At launch, we provided a number of computer vision-based AI demos and examples (magpi.cc/aikitdemos), built on well known state-of-the-art neural network models. However, our power users quickly asked for more – in particular the ability to re-train these models with their own datasets, or even to compile custom models to run on the Hailo AI accelerator. Hailo has been working hard behind the scenes, and we are excited to announce the release of the Hailo Dataflow Compiler (DFC) (magpi.cc/hailodfc). The DFC will allow our users to extend the ability of the Raspberry Pi AI Kit and fine-tune its performance for their specific use cases. Everything is held together securely, so it's…

01 Poetry Camera contains Raspberry Pi Zero 2 W and uses Camera Module 3 to capture an initial image. 02 Next, slide the mounting plate into the chin of the 3D printed camera case and slide the Poetry Camera HAT onto the chin. Attach the knob for the rotary switch to select the poem type. 03 A thermal receipt printer sits in the lower part of the Poetry Camera and presents the results of its AI-generated musings based on what the camera saw. Instructions and AI training code can be found at at magpi.cc/poetrycamgit.…

01 Two ports are tunnelled via SSH from the user to the server, with the web UI on one port. From here you can check the status of a development board, if the debugger is running, and other features. 02 The second port is dedicated to the debugger – openocd or st-link – and is connected via an SWD interface like on Raspberry Pi Pico. Remote debugging allows for new firmware to be uploaded to the development board, or debugging of the source code on the board. 03 The administrator side is a little more complex, with web servers managing the functions described above. A set of Python scripts was created to automate repeating tasks (like updating code) on one or all servers that are a part of any given…

What's new in Pico 2 James Adams, CTO (Hardware), Raspberry Pi At first glance, not much has changed, according to James Adams, CTO (Hardware) at Raspberry Pi. “It's got the same I/O… it's using the same form factor. It looks almost the same; the biggest visual change is that the silkscreen now says ‘Pico 2’. Apart from the new RP2350 chip, we wanted everything to be as similar as possible to provide a drop-in experience for the user. “Fundamentally, it's going to be a very similar experience to Pico, where developers will download the SDK and it will all look very, very similar in terms of building software, compiling software. Users will still plug the USB in and drag and drop their UF2 files on to it. “There are two…

hsmag.cc/FloppyCleaner Floppy disks (the 3.5-inch version) have a problem. When they're not being wiped by magnets, degrading through physical wear, or being accidentally recorded over, they are prone to going mouldy. This isn't a problem that afflicts many of us, having long ago moved into the 21st century. But if you're one of those people who still prefers the superior graphics and sound provided by the Amiga, you'll need a way to keep your disks clean. You could spend a few minutes wiping them with a cloth, and perhaps a little isopropyl alcohol. Or you could spend weeks designing a building an Arduino-powered, 3D-printed machine that not only takes care of your removable storage media, but looks amazing at the same time. The latter is the approach taken by Rob…

ADAFRUIT $17.50 adafruit.com Charging Lithium Ion batteries via a solar panel can be very difficult, and in some cases dangerous. That's where this universal solar charger designed by Adafruit comes into play. So, what does it do? It handles all the tricky circuitry required for safely charging Lithium Polymer (LiPoly) or Lithium Ion (LiIon) rechargeable batteries via a solar panel. Not an easy task! Making the connections is easy. You have a convenient barrel jack connector for a solar panel, also available at Adafruit. And you have a standard connector for your battery on the other side of the board. At the heart of the board is the bq24074 IC which handles all the complexities and automatically draws the most current available from the solar panel. Charging these types of…

FEATURE Raspberry Pi Pico 2 is here! We expect you've read all about it in our big feature earlier in the issue, and you may be wondering how the new chip that powers Pico 2 – RP2350 – will be used elsewhere. You won't have to wait long as plenty of companies are already using RP2350 in their products, and we've got the scoop on just about all of them. Development boards “Plenty of companies are already using RP2350 in their products, and we've got the scoop on just about all of them” Picossci 2 Breakout with Type-C Switch Science magpi.cc/picossci2 This board has the same shape and pin assignments as Raspberry Pi Pico 2, meaning it can be used right away as a replacement for Pico 2 – and…

▶ Olimex ▶ olimex.com ▶From €30 / £25 / $32 SPECS DIMENSIONS 80 × 155mm PROCESSOR 6.25MHz W65C02 MEMORY 64k GRAPHICS MEMORY 32k OUTPUT RESOLUTION 320x240 (256 colour) An emulator is available for Windows and Linux based PCs, so you don't need to develop on the hardware itself The Olimex Neo6502 is an open-source hardware and software retrocomputing platform that combines a discrete 6.25Mhz 6502 8-bit microprocessor with an RP2040 chip to create a fascinating platform for both modern 8-bit development and retro emulation. The RP2040 handles video, audio, storage and interface devices. It can be flashed with a variety of firmware to emulate classic 8-bit computers, including the Apple II, C64 and Oric. Even more interestingly, you can also flash it with Morpheus, which includes a programming interface that…

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. Remember to follow along at the hashtag #MagPiMonday!…

Frost-Bye Waterblock The FrostByte Waterblock is a cooling solution designed specifically for Raspberry Pi enthusiasts and professionals who demand peak performance and reliability from their devices. Built with cutting-edge technologies, the FrostByte Waterblock ensures that your Raspberry Pi operates at optimal temperatures, even under the most intense workloads. kck.st/3yh2h44 CrowView Note A portable monitor and keyboard that works like a dock for a Raspberry Pi (or a smartphone, or even other devices) to turn it into a full laptop. It has its own battery, so all you need is to supply a Raspberry Pi 5 and you're good to go. kck.st/4dZkiDp…

At the start of August, we announced the launch of Raspberry Pi Pico 2 (magpi.cc/pico2), our second-generation microcontroller board. It's built on RP2350: a new high-performance, secure microcontroller designed right here at Raspberry Pi. With a higher core clock speed, twice the memory, more powerful Arm cores, new security features, and upgraded interfacing capabilities, Pico 2 delivers a significant performance and feature uplift, while retaining hardware and software compatibility with earlier members of the Pico series. Pico 2 is on sale now, priced at $5. The engineer's microcontroller Back in January 2021, we surprised everyone with the launch of the original Pico, and our RP2040 microcontroller (magpi.cc/rp2040). In the three and a half years since, we've sold nearly four million units of Pico and its wirelessenabled sibling Pico W. RP2040…

Arm's Common Microcontroller Software Interface Standard (CMSIS, magpi.cc/cmsis) initiative aims to standardise device support across many different vendors’ Cortex-M-based microcontrollers, and to provide simple software interfaces to the processor and its peripherals. Arm's Windowsbased μVision development environment uses CMSIS “pack” files to understand how to build and debug code on a given microcontroller. To better integrate with the Arm ecosystem, we're releasing a new CMSIS Device Family Pack (DFP) with support for Raspberry Pi Pico and Raspberry Pi Pico W. With this new DFP, you can now use these boards seamlessly with all of Arm's CMSIS tools, including µVision. Our DFP includes the following: • header files, startup code, and other support files • software packages providing devicespecific functionality Instructions To get started with the pack, download the latest version…

01 The Gugusse Roller uses Raspberry Pi HQ camera and Raspberry Pi 4 to import and digitise analogue film footage. Denis-Carl's custom board sits inside a Canakit case with Raspberry Pi 3B+ and a heatsink. 02 Once assembled, thread a reel of film around each of the Gugusse Rollers until the correct tension is reached. Denis-Carl demonstrates how to achieve this at: magpi.cc/gugussehow1. 03 Position the HQ camera ready to capture footage and run manualControl.py on your Raspberry Pi. The HQ camera will capture and save each frame to Raspberry Pi's SD card. You can then use video editing software to digitise the shots into a single video clip. See the GitHub for more information: magpi.cc/gitgugusse.…

As we've heard from James Adams, the Pico 2 is physically virtually indistinguishable from the original Pico. What makes the difference is the brains of the board: the RP2350 chip. “We can get down to less than a tenth of the power used by RP2040 in its low power state” RP2350 changes Nick Francis, ASIC Technical Director “There are quite a few changes from RP2040 to RP2350. The main ones are security, higher performance through dual Cortex-M33 processors running at 150MHz, more memory and new OTP, and lower power modes. On RP2040, in our low-power state, we'd get down to about 180 microamps in our dormant state with all clocks off. On RP2350 we can switch off power to a lot of the chip and get down to less than…

hsmag.cc/LenticularClock You might have seen the work of Moritz Sivers before; you've probably scrolled past on Instagram or the platform formerly known as Twitter and thought “that's amazing”. This latest build of his, a lenticular clock, performs exactly the same function that any other clock does, but it uses a method that we've never seen in any other clock, made by anybody. Lenticular images are sliced up, so that when an array of lenses is placed over them, the image appears to move when you change the angle you look at it. The best example we've seen is an old magazine cover that was on sale at around the time one of the Star Wars films came out: look at it one way, you're looking at an image of Anakin…

ADAFRUIT $24.95 adafruit.com ADAFRUIT $17.50 adafruit.com The Mini Power Meter available at Adafruit is a convenient way to easily display the voltage, current, Watts, mAh and mWh in a circuit. The meter has a built-in LCD display to show all the information it's capable of gathering. And besides the typical voltage and watts and amps it will also calculate cumulative Watt hours and milliamp hours over time and display the ambient temperature. You don't need any code, no calculations, or any data logging: it does it all for you! Adjustable power supplies can be expensive, especially ones with extra features that you sometimes just don't need. This power supply, available at Adafruit, is simple and affordable. It allows you to adjust the voltage range from 3 to 12 volts DC…

IRIV IO Controller IR4.0 Industrial IO Controller Cytron magpi.cc/irivioir4 Release window: coming soon A compact and versatile industrial IO Controller, IRIV IO Controller. Engineered to simplify your industrial application and IO management, the IRIV IO Controller can be more than just a standalone IO Controller. Bopp & Steve This is not rocket science magpi.cc/boppsteve Release window: Autumn 2024 A space effect synthesizer module – built for the Eurorack system. It reverberates, diffuses, delays and shifts pitch of whatever you send into it, based on a deconstructed reverb audio path. Beautiful chorality, sweeping tails and booming reverb are added to your sound. EDU Scope Erica Synths ericasynths.lv Release window: end of August 2024 This oscilloscope board add-on for the Labor circuit design playground features a two-channel oscilloscope with time and amplitude…

▶ Sunfounder ▶ magpi.cc/piroman5 ▶ From £62 / $79 SPECS FEATURES Tower cooler with PWM fan, 2 × RGB fans with dust filters, 0.96-inch OLED, NVMe M.2 SSD board, 2 × fullsize HDMI ports, power button, RTC battery Verdict Quality components and detailed documentation make for a robust, beautiful cooling case with excellent performance. 9/10 With aluminium and clear acrylic panels, the Pironman 5 case turns Raspberry Pi 5 into a stunning desktop mini PC with optional SSD storage. Not only does it look cool when lit up with RGB LEDs, it delivers some effective cooling with three fans. Taking around an hour, assembly is straightforward thanks to an illustrated guide and good labelling of the kit components – just as well, as there are four standoff sizes and three…

We're having a lot of fun with Raspberry Pi Pico 2 this issue. However we didn't want Raspberry Pi Zero to feel left out. We've been using one behind the scenes for extracurricular projects and remembered just how good it was, so we thought we'd highlight some of the best things ever made with it. NODE Nano Server V2 Plug ‘n’ serve This upgraded plug-in server works like a lot of modern Wi-Fi boosters where it's just a plug. It's very neat. We like it. magpi.cc/nanoserver2 Penkesu computer Handheld computing A very tiny and a very cool looking laptop made with a 7.9”-wide screen and repurposed GBA SP hinges magpi.cc/penkesu ZeroBot Tiny robot We had a very similar robot in The MagPi when Raspberry Pi Zero launched, and we still…

A weekend affair in Lagos, Nigeria, saw Matt Richardson, Community Engagement Manager, and Toby Roberts, Maker in Residence, turn up! The event was centred on programming the Raspberry Pi Pico, and was intended for enthusiasts and local students to learn more about how microcontrollers can be used in IoT and other real-world situations. FIND OUT ABOUT NEXT MONTH'S EVENTS ON PAGE 124…

We love Google Pigweed! Pigweed is an open-source project launched by Google in 2020 (magpi.cc/pigweed). We love it because it helps programmers and teams of developers build great software for embedded devices that use microcontrollers like our new RP2350 and its predecessor, RP2040 (magpi.cc/rp2040). We are also partial to funny product names around here; we are thrilled that our Pico W has gone down in the community's vernacular as the “pi cow”. We've been working with the Pigweed team for almost a year now, and last month they upstreamed support for build and testing environment Bazel into our Pico SDK, and will continue to maintain it. Bazel is an important part of the Pigweed project, and the team believes it's going to be the future of embedded software development, making…

01 A moisture reading in excess of 16% is considered to be damp. Anything over 20% is excessive. Roberto used a Pimoroni Grow HAT Kit for Raspberry Pi and screwed one of the soil moisture sensors to the wall to gather data. 02 With the inexpensive Adafruit BME280 environmental sensor module, Roberto was able to measure the temperature, humidity and barometric pressure with great accuracy via a single unit, placing it behind a transparent acrylic shield to protect it from curious children! 03 Since he was also taking time-lapsed images of the wall at regular intervals, letting him see the damp patch as it spread, Roberto placed a clock on the wall so he could check the time and doublecheck the room's temperature and humidity.…

RISC-V is an open-source chip instruction set. The first RISC-V chips were released in 2014, and since then it's been steadily growing in popularity, particularly in academic circles – the open source nature of RISC-V makes it a perfect place to start if you want to study how processors work. The Hazard 3 RISC-V cores on the RP2350 were designed by Raspberry Pi's own Luke Wren in his spare time – and as they're open source, you can download the design files yourself and start poking around in the very same chip that will eventually be in use on millions of units out in the wild. As Eben Upton puts it: “In adding Hazard3 to RP2350, we're aiming to give software developers a chance to experiment with the RISC-V architecture…

hsmag.cc/FauxTRS Few people in the UK will recognise this quasi-replica of a TRS-80 model 3/4, but for North Americans of a certain age, it's possible that this was the first home computer they ever used. It was sold in the Radio Shack chain of shops owned by the Tandy company (hence TRS), and while there were various models, this one emulates the top-of-the-range version, which had 48K of RAM and two floppy disk drives, all for the bargain price of $2,495. That's $2,495 in 1980 money. This is not an exact replica of a TRS: instead, it's meant to evoke the feeling of using one. The two disk drives that came at such a high price back in 1980 don't work in this model, but they do have LEDs that…

HackSpace | TOP PROJECTS hsmag.cc/UselessRobot There's a bit of the theme in this month's Top Projects: retro computing. The storage media were unreliable, the machines were incredibly expensive, and performance was, by today's standards, limited. For whatever reason, however, vintage computers retain their fascination, leading to some brilliant reimplementation with modern hardware. One such is this tiny PC by Salim Benbouziyane. Like many makers, he's taken a Raspberry Pi 4 and put it in a 3D-printed shell; unlike many other makers, he's made it look like an early 2000s Dell running Windows XP (we understand the love for Amigas, but beige Dell boxes? Seriously?). What elevates this project isn't the four-inch Waveshare screen, or even the meticulously detailed 3D-printed case (printed at an accuracy of 50 microns, by the way…

HackSpace | TUTORIAL With a house and shed full of lathes, milling machines, 3D printers and more, Jo Hinchliffe (AKA Concretedog) 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. Making things is, we imagine for most readers, primarily a fun activity. For some it might be part of their work, but there is a third option where making is still fun but others might be interested in buying the things we make. In this article we'll look at approaches to building a small side hustle maker business using the Tindie platform and we'll look at some things you might need to consider. My own Tindie shop, or ‘store’ in its native…

ADAFRUIT $24.95 adafruit.com SPARKFUN $11.95 sparkfun.com This multifunctional USB digital tester by Adafruit is a really handy tool that everyone should consider having for their workbench. You can easily measure voltage, current, power, charge time, and more. You can even gather data for coulomb-counting, or total power consumption over time. It's capable of working with USB Type-A, Micro-B, and USB Type-C. It has a full-colour display and can even do total power consumption. If you need a way to measure USB power, this is a great little tool to have. This is a very simple breadboard power supply designed by Sparkfun electronics. I have personally built a couple of these over the years, because they are so handy to have on your workbench. You typically power this with a wall…

▶ Seeed Studio ▶ https://magpi.cc/r1000 ▶ From £132 / $169 SPECS INTERFACES 1×Gigabit Ethernet (with PoE), 1×100MB Ethernet, 3x3-pin RS485 Terminal Block, 2×USB-A 2.0 Host, 1×USB C (for flashing OS), 1x HDMI WIRELESS Wi-Fi, BLE, LoRA, 4G LTE, Zigbee POWER 2~24V AC/9~36V DC, idle 2.88 W, full load 5.52W, overvoltage protection 40V We've reviewed a couple of products from Seeed Studio's reTerminal line in the past and have always been impressed by their incredible build quality and functionality. The reComputer R1000 seems to be using that design ethos for a slightly different kind of product – an all-in-one edge IoT controller. Out of the box it looks a bit like an unassuming full Raspberry Pi in a nice heat-sink case, albeit a fair bit chunkier. The size comes from the…

Hansen Lv, who's 12 years old, dropped us a line to talk to us about his electronic piano player robot, powered by Raspberry Pi Pico. “Some music is quite fast and hard for beginners to play,” Hansen wrote. “Some music has more than ten notes to play at the same time like Rush-E that people cannot play well… So, I made an electronic piano player using Raspberry Pi Pico to solve this problem.” Rush-E is a song that's impossible for humans to play, made as a sort of joke about music tutorials, that pianists then decided to try and actually play. We don't fully understand the whole saga, but we understand the key point: if it's too hard for humans to play, get a robot to do it. Hansen tells…