Golioth IoT development platform
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Golioth IoT development platform offers Zephyr SDK, support for nRF9160, ESP32, and over 100 other platforms

There are already plenty of IoT development platforms, but here’s another one with Golioth that relies on a Zephyr SDK, “first-tier” support for Nordic Semiconductor nRF9160 (cellular) and Espressif Systems ESP32-C3 (WiFi), as well as a QEMU-based simulator for easy testing. The use of an open-source Zephyr SDK even enables them to support over 100+ hardware components, and the company, also called Golioth, says their platform scales from one device for evaluation to one million devices during deployment, thanks notably to a free Dev Tier account to get started at no cost. Some of the other highlights of Golioth include: “Secure by Default” communication over efficient protocols like CoAP and soon MQTT Access to Device Services like Software updates that include secure boot and firmware management Real-time NoSQL database (LightDB) that can be useful for creating Digital Twins and synchronization Time-series database (LightDB Stream) for storing and querying sensor data […]

Wappsto:bit GO
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Wappsto:bit GO – An ESP32 board with plenty of sensors, Micro:bit compatibility (Crowdfunding)

Wappsto:bit GO is an ESP32 board compatible with BBC Micro:bit accessories thanks to a compatible edge connector, but adding WiFi to Bluetooth LE, and offering some extras compared to Elecrow Mbits ESP32-based BBC Micro:bit clone. The new board is notably equipped with a wider range of sensors including a light sensor, a magnetometer, and sound sensor beside the temperature sensor and accelerometer present in the original board, and it also exposes GPIO through a more traditional 2.54-pitch header to facilitate the integration of a wider variety of add-on boards. Wappsto:bit GO specifications: Wireless modules ESP32-WROOM-32E module with ESP32 dual-core microcontroller, 4MB flash, 2.4 GHz WiFi and Bluetooth LE connectivity, built-in PCB antenna Raytac MDBT50Q-512K Bluetooth 5.2 module based on nRF52833 with 512KB Flash MCU – NXP Kinetis KL2 Arm Cortex-M0+ microcontroller (MKL27Z256VFM4 ) with 256KB Flash (for USB port handling) Display – 25 LED matrix Sensors Temperature sensor, Light sensor […]

Graperain Samsung, Rockchip RK3588, and Qualcomm CPU modules, SBCs, and carrier boards
Open source GPU driver Linux
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Speeding up open-source GPU driver development with unit tests, drm-shim, and code reuse

Getting an Arm platform that works with mainline Linux may take several years as the work is often done by third parties, and the silicon vendor has its own Linux tree. That means in many cases, the software is ready when the platform is obsolete or soon will be. It would be nice to start software development before the hardware is ready. It may seem like a crazy idea, but that’s what the team at Collabora has done to add support for Arm “Valhall” GPUs (Mali-G57, Mali-G78) to the Panfrost open-source GPU driver. The result is that it only took the team a few days to successfully pass tests using data structures prepared by their Mesa driver and shaders compiled by their Valhall compiler after receiving the actual hardware thanks to the work done in the last six months. So how did they achieve this feat exactly? We have to […]

Raspberry Pi RP2040 3D printer control board
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BTT SKR Pico – A Raspberry Pi RP2040 based 3D printer control board

BigTreeTech BTT SKR Pico V1.0 is a 3D printer controller board based on Raspberry Pi RP2040 MCU, compatible with Raspberry Pi Linux SBC’s, and specially designed for the compact Voron 0 3D printer, but also working with other models. The board comes with four TMC2209 motor drivers covered by a heatsink for cooling, as well as interfaces for temperature sensors, and a USB Type-C port to connect to the host computer, usually a Raspberry Pi board running Linux. BTT SKR Pico V1.0 3D printer board specifications: MCU – Raspberry Pi RP2040 dual-core Cortex M0+ microcontroller at up to 133 MHz with 264 kB of embedded SRAM Storage – TBD Motor drivers – Up to 4x TMC2209 drivers for X, Y, Z1, Z2, and E interfaces Temperature sensor interfaces – TH0, THB 2-way 100K NTC RTD sensors Host interface – USB Type-C port Misc – Built-in heatsink (Note: fan cooling is […]

PiGear Nano
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PiGear Nano – A Nano-ITX Raspberry Pi CM4 carrier board with 7-30V DC input

PiGear Nano is an Nano-ITX carrier board for Raspberry Pi CM4 (Compute Module 4) designed for industrial applications with a -30°C to +80°C temperature range, 7 to 30V DC input, as well as RS232, RS485, and CAN bus interfaces. The board also features one Gigabit Ethernet port, one HDMI port, MIPI DSI and CSI display & camera interface, M.2 SSD storage, eight USB 3.0 ports, mini PCIe and SIM card sockets for 4G LTE cellular connectivity, and various digital input and output interfaces. Pigear Nano specifications: Supported SoM – Raspberry Pi CM4 and CM4 Lite modules Storage – 1x NVMe SSD M.2 socket,  1x MicroSD card slot for Compute Module 4 Lite only Display I/F – 1x HDMI Type-A connector, 1x MIPI DSI interface x 1 Camera I/F – 1x MIPI CSI interface Networking 1x Gigabit Ethernet RJ45 port Optional 4G LTE/GPRS via mini PCIe socket plus SIM card slot […]

StackyPi RP2040 Raspberry Pi Zero board
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StackyPi – A Raspberry Pi RP2040 board with Raspberry Pi Zero form factor (Crowdfunding)

SB Components’ StackyPi is a development board based on Raspberry Pi RP2040 MCU that happens to follow the Raspberry Pi Zero form factor. The board is equipped with 8MB SPI flash for the firmware, a MicroSD card socket, a micro SB port, two buttons, and a 40-pin GPIO header that makes it compatible with some Raspberry Pi uHAT and HAT expansion boards. StackyPi specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ up to 133 MHz with 264KB SRAM Storage – 8MB (64Mbit) SPI flash, MicroSD card socket USB – 1x Micro USB port Expansion – 40-pin GPIO header with GPIO, I2C, UART, SPI, etc… mostly compatible with Raspberry Pi header (3.3V I/Os) Misc – Reset and Boot buttons Power Supply- 5V via Micro USB port Dimensions – 65 x 30 mm (Raspberry Pi Zero form factor) The main advantage of such as board is that it can support […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
Silicon Labs BG24 & MG24 block diagram
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Silicon Labs BG24 and MG24 2.4 GHz wireless MCU’s quadruple AI performance at a fraction of the energy

Machine Learning is getting everywhere including into 2.4GHz wireless microcontrollers with SIlicon Labds BG24 Bluetooth and MG24 multi-protocol Cortex-M33 microcontrollers that improve AI/ML performance by 4 times using 1/6th of the energy thanks to a built-in AI accelerator. That makes the new microcontrollers suitable for battery-powered edge AI devices with support for Matter (coming soon) as well as PSA Level 3 Secure Vault protection. Silicon Labs expects the chips to be found in various smart home, medical and industrial applications. BG24 and MG24 share the same block diagram and the same specifications apart from the supported wireless protocols: MCU core – Arm Cortex-M33 @ 78.0 MHz with DSP instruction and floating-point unit Memory – Up to 256 kB RAM data memory Storage – Up to 1536 kB flash program memory Wireless CPU – Arm Cortex-M0+ 2.4 GHz Radio Performance -104.5 dBm sensitivity @ 250 kbps O-QPSK DSSS -104.9 dBm sensitivity […]

Radxa E25 2.5GbE switch-Xiaomi AX6000 WiFi 6 router
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Radxa E25 carrier board, 2.5GbE switch, and WiFi 6 router

I’ve just received an early sample of Radxa E25 dual 2.5 GbE carrier board for Radxa CM3 Plus (RK3568) system-on-module, a 2.5GbE TP-Link switch, and Xiaomi AX6000 WiFi 6 + 2.5GbE router. Here’s the back story before looking into the devices. I’ll soon have to review UP Xtreme i11 mini PC with a 2.5GbE port, and after writing about the upcoming ROCK5 Model B SBC with both 2.5GbE and WiFI 6/6E, I realized I should really get some hardware to test 2.5GHz and WiFi 6. So I started to ask what could be the best options for a $200 budget. While thinking about it, I remember Radxa was working on the Radxa E23 board with 2.5GbE, and adding a WiFi 6 USB dongle might be an option. But they told me Radxa E25 would be a better option with two 2.5GbE ports and support for WiFi 6, although that one […]

Boardcon LGA3576 Rockchip RK3576 System-on-Module designed for AI and IoT applications