Linux Devices, Open Hardware, and Android

posted by Roy Schestowitz on Aug 07, 2025

• Devices/Embedded

  • Arduino ☛ Updated Arduino cores with ZephyrOS (beta)  

    ZephyrOS is an open-source, state-of-the-art, real-time operating system (RTOS) designed for low-power, resource-constrained devices. We are transitioning Arduino cores to ZephyrOS to ensure continued support and innovation for developers. This change follows Arm’s deprecation of MbedOS, which has historically powered some of our cores. By adopting ZephyrOS, we are introducing a more modern, scalable, and feature-rich RTOS that aligns with the evolving needs of the embedded development community. This ensures that Arduino users have access to a robust, actively maintained platform for creating advanced applications.

  • Linux Gizmos ☛ XIAO Series Adopts Nordic nRF54L15 SoC with BLE 6.0 and Low Power Operation

    Seeed Studio has introduced the XIAO nRF54L15 and XIAO nRF54L15 Sense, two compact boards based on Nordic’s nRF54L15 SoC. They support BLE 6.0, Matter, Thread, and other 2.4 GHz protocols, with potential use in wearables, sensors, and prototypes.

  • Linux Gizmos ☛ Waveshare Expands ESP32-P4 Platform with Compact PoE-Ready DEV-KIT Variant

    Waveshare has introduced the ESP32-P4-WIFI6-DEV-KIT, a new variant of its ESP32-P4 development platform featuring a more compact and integrated layout compared to the earlier ESP32-P4-WIFI6 board. Both models are based on the ESP32-P4 dual-core RISC-V MCU and incorporate the ESP32-C6 to enable Wi-Fi 6 and Bluetooth 5 (BLE) connectivity via an SDIO 3.0 interface.

  • Linux Gizmos ☛ Fruit Jam Mini Computer Features RP2350B, ESP32-C6 WiFi, and DVI Video

    First seen earlier this year, Adafruit has officially launched the Fruit Jam, a compact RP2350B-powered development board. The product mentions that it matches the dimensions of a standard credit card, 3.375 by 2.125 inches (ISO/IEC 7810 ID-1), while providing the functionality of a miniature standalone computer.

• Open Hardware/Modding

  • CNX Software ☛ FPGA-based Modos Paper Dev Kit supports a wide range of E-Ink displays, up to 75 Hz refresh rate (Crowdfunding)

    Modos Paper Dev Kit helps users create an open-hardware E-Ink monitor with a fast 75 Hz refresh rate and low latency thanks to a Xilinx Spartan-6 FPGA driver board, and compatibility with a wide and of E-Ink displays between 4-inch and 42-inch in size. The resulting grayscale or color E-ink monitor can be connected through HDMI or USB and works on Linux, macOS, and Windows.

  • Hackaday ☛ A Robot Controller With The Compute Module 5

    The regular Raspberry Pi line is a flexible single-board computer, but sometimes you might find yourself wishing for a form factor that was better designed for installation into a greater whole. This is why the Compute Module variants exist. Indeed, leveraging that intention, [Hans Jørgen Grimstad] has used the powerful Compute Module 5 as the heart of his “Overlord” robot controller.

  • Hackaday ☛ A Portable 12 VDC Water Chiller For The Chemistry Lab

    Having a chiller is often essential for the chemistry laboratory, but what if you’re somewhere without easy access to water, nevermind a mains outlet to plug your usual chiller into? In that case you can build a portable one that will happily run off the 12 VDC provided by a mobile source like the accessory outlet in a car while reusing the water from its reservoir, as demonstrated by [Markus Bindhammer] in a recent video.

  • Raspberry Pi ☛ Opening the box: Tools to teach young people about AI

    Learn how an innovative no-code platform developed in Finland is helping students explore AI in creative, practical ways.

  • Purism ☛ AI and Data Privacy Under Scrutiny

    Let’s be clear—this isn’t just a technical footnote. It’s a seismic shift in how we must think about AI, data ownership, and digital consent.

  • Hackaday ☛ 2025 One Hertz Challenge: Square Waves The Way You Want ‘Em

    On an old fashioned bench a signal generator was once an indispensable instrument, but has now largely been supplanted by the more versatile function generator. Sometimes there’s a less demanding need for a clock signal though, and one way that might be served comes from [Rupin Chheda]’s square wave generator. It’s a small PCB designed to sit at the end of a breadboard and provide handy access to a range of clocks.

  • Hackaday ☛ 2025 One Hertz Challenge: An Animated Ferrofluid Display

    Ferrofluid is fun. You’ve probably seen all kinds of demos with it bouncing around in response to magnetic fields, or dancing near a speaker. [beastie417] decided to turn the entertaining fluid into a display.

  • Hackaday ☛ Automated Rubbish Removal System

    The hackers over at [HTX Studio] built a set of twenty trash cans which can automatically catch and remove rubbish.

• Mobile Systems/Mobile Applications

  • Qt ☛ Qt Tools for Android Studio 4.1 Released

    Qt Tools for Android Studio version 4.1 is out! It can be downloaded from the JetBrains marketplace.