Open Hardware: GNU/Linux, Raspberry Pi, SparkFun, and More
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Linux On Mobile ☛ 2025-03-09 [Older] Weekly GNU-like Mobile Linux Update (09, 10/2025): Too much to put in a title
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Tom's Hardware ☛ Raspberry Pi Pico powers $75 PicoCalc portable programming handheld
Building a Raspberry Pi project from scratch is always a satisfying experience and one of the best ways to scratch that itch is to invest in an all-in-one kit. Today we've got a really cool one to share with you from ClockworkPi known as the PicoCalc kit. It uses our favorite microcontroller, the Raspberry Pi Pico to drive a gorgeous calculator.
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Raspberry Pi Weekly Issue #495 - Pi Day, trophies, Embedded World, and DIY music keyboards
Howdy, We’re three months and fourteen days into the year, and you know what that means: it’s Pi Day! A day to celebrate our favourite constant, π, and all the word play it enables, of which we never tire. In other Pi celebrations, we won the 2024 Europe TSMC Trophy. The award recognises our innovation in embedded computing and our focus on delivering secure, high-performance, and scalable solutions.
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Digital Camera World ☛ In the heyday of compact cameras, Canon’s point-and-shoots are all out of stock. Now what?
Canon Japan has issued a notice that the PowerShot V1, along with the G7 X Mark III and SX740 HS are all experiencing delays. While the company made a similar announcement earlier this year, Canon Japan now says that the V1 “will take a long time for delivery,” while orders for the other two compacts have now been suspended.
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Jeff Geerling ☛ Exploring WiFi 7 (at 2 Gbps) on a Raspberry Pi 5
I've now tested cheap AX210 (WiFi 6E) and BE200 (WiFi 7) cards, and both work great, giving 1 Gbps+ of wireless throughput on the Pi 5. And some people even have AP mode working on Intel cards, meaning you can set up a Pi with something like RaspAP for a completely custom portable Linux WiFi travel router!
I was testing these mostly to see how the multi-gig WiFi experience was on the Raspberry Pi, and also as a way to justify upgrading to a WiFi 7 AP at my studio—I just ordered a Netgear WBE710 WiFi 7 AP, and I'll be poking and prodding with the Pi since it's the only other device I own with WiFi 7 besides my iPhone.
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SparkFun Electronics ☛ Experiential Robotics Platform (XRP) Moves Out of Beta Phase!
The plastics and chassis have been significantly enhanced over the Beta XRP! Improved snap-fit components and optimized 3D-printing compatibility make assembling the XRP remarkably easier. Thanks to improved durability, a redesigned battery holder, and versatile mounting options, the XRP has also become more robust and user-friendly.
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SparkFun Electronics ☛ SparkFun Electronics is Now the Sole Manufacturer and Sales Partner for Teensy®
For years, Teensy has captivated a dedicated community of engineers, developers, and hobbyists with its compact size and user-friendly USB-based development system. We understand the passion behind these boards, and we’re committed to ensuring their continued availability and growth.
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Dima Kogan ☛ Dima Kogan: Getting precise timings out of RS-232 output
For uninteresting reasons I need very regular 58Hz pulses coming out of an RS-232 Tx line: the time between each pulse should be as close to 1/58s as possible. I produce each pulse by writing an
\xFFbyte to the device. The start bit is the only active-voltage bit being sent, and that produces my pulse. I wrote this obvious C program: [...] -
CNX Software ☛ UNIHIKER K10 low-cost TinyML education platform supports image detection and voice recognition
UNIHIKER K10 is a low-cost STEM education platform for TinyML applications that leverages the ESP32-S3 wireless microcontroller with vector extensions for workloads such as image detection or voice recognition. The UNIHIKER K10 also features a built-in 2.8-inch color display, a camera, a speaker, a 2-microphone array, a few sensors, a microSD card, and a BillBC Micro:bit-like edge connector for power signals and GPIOs. It’s a cost-optimized version of its Linux-based big brother – the UNIHIKER M10 – first unveiled in 2022.
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CNX Software ☛ 10-cent WCH CH570/CH572 RISC-V MCU features 2.4GHz wireless, Bluetooth LE 5.0, USB 2.0
Patrick Yang, CTO at WCH, has recently unveiled the CH570 RISC-V SoC with 2.4GHz wireless and USB 2.0 (host & device) as an upgrade to the popular CH32V003 general-purpose RISC-V MCU with more features at the same low price (10 cents). CH570 also comes with 12KB SRAM and 256KB flash (vs 2KB SRAM and 16KB flash for the CH32V003), offers up to twelve GPIO, six PWM, I2C, UART, SPI, and a 20-channel key detection module. There’s also the CH572 with the same features, except it also supports Bluetooth LE 5.0.