Zalmotek RZ A3UL, RA8M1, and RA6M1 SoM
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Zalmotek RA6M1, RA8M1, and RZ/A3U SoMs follow Adafruit Feather form factor, support carrier board for robotics and industrial control

Romanian company Zalmotek has recently introduced three new SoMs, the RA6M1, RA8M1, and RZ/A3UL, and a modular carrier board designed for embedded applications such as robotics, industrial control, and edge computing. There are a few things that I find interesting about this setup. The SoM comes in Adafruit Feather form factor and, as a result, supports various Adafruit FeatherWings. The modular carrier board supports the Dynamixel motor driver module, the Particle M-SoM breakout module, Ethernet, and CAN modules. The RA6M1 Feather SoM is powered by a Renesas RA6M1 Arm Cortex-M4 CPU at up to 120 MHz, with 512 KB flash and 96 KB SRAM while the RA8M1 Feather SoM features a Renesas RA8M1 64-bit Arm Cortex-M85 running at up to 360 MHz with 128 Mbit SPI flash, the RZ/A3UL Feather SoM is based on a Renesas RZ/A3UL 64-bit Arm Cortex-A55 CPU at up to 1 GHz, with 512 Mbit OctaFlash […]

ESPuno Pi Zero
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ESPuno Pi Zero ESP32-C6 board takes up to 60V DC input, offers RS-485 interface (Crowdfunding)

ESPuno Pi Zero is a Raspberry Pi Zero-sized board based on an ESP32-C6-MINI-1 WiFI 6, BLE, and 802.15.4 wireless module and an SMPS that allows up to 60V DC input via a 2-pin terminal block. The board also features two USB-C ports, one connected to the ESP32-C6 and the other to a CH343P USB-to-serial chip, a 40-pin GPIO header, a Grove connector, a 3-pin terminal block for RS-485, DMX, Profibus, and a few buttons and LEDs. ESPuno Pi Zero specifications: ESP32-C6-MINI-1-N4 or ESP32-C6-MINI-1U-N4 SoC – Espressif Systems ESP32-C6 single-core 32-bit RISC-V clocked up to 160 MHz 320KB ROM, 512KB SRAM, low-power RISC-V core @ up to 20 MHz CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory/Storage – 320KB ROM, 512KB SRAM Wireless – 2.4 GHz WiFi 6, Bluetooth 5.0, and 802.15.4 radio (for Thread/Zigbee) Storage – 4MB flash Antenna ESP32-C6-MINI-1-N4 […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
EM1103B Rockchip RV1103B SBC
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Boardcon EM1103B AIoT SBC for video surveillance applications features PIR sensor, fingerprint interface, and dual camera support

Boardcon EM1103B is an AIoT SBC powered by a Rockchip RV1103B SoC designed for surveillance applications with dual camera, fingerprint, and a PIR sensor. This unique combination makes it suitable for vision-based applications such as smart cameras, doorbells, and battery-powered surveillance devices. The SBC consists of a compact core board that mounts to a large baseboard, which gives access to all the necessary I/O modules and also provides power. The SBC together features 100 Mbps Ethernet, Wi-Fi, USB 2.0 OTG, UART, GPIO, and interfaces for speakers, microphones, fingerprint sensors, and PIR motion sensors. It also features PoE (5V) support and expandable storage via microSD. Additionally, it integrates two MIPI CSI camera interfaces mad the RV1103B’s 8MP hardware ISP with enables advanced image processing features such as HDR, 3A (AE/AF/AWB), and 3DNR. The chip also supports H.264/H.265 video encoding for local and cloud streaming. Boardcon EM1103B specifications: Core Board – Boardcon […]

ESP32 C6 Wi Fi relay board
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ESP32-C6-based Wi-Fi relay board features six 10A relays, supports Home Assistant, 3D printed enclosure

Seeed Studio’s XIAO 6-Channel Wi-Fi 5V DC Relay is a compact ESP32-C6 Wi-Fi relay board built around the XIAO ESP32C6 module which supports Wi-Fi 6, BLE 5.0, Zigbee, and Thread connectivity. Designed for remote control and automation, the device comes with pre-installed ESPHome firmware and features six independent relay channels, each supporting 10A at 30V DC or 250V AC, making it ideal for simultaneously controlling multiple DC or AC devices. The board also has two grove ports for sensors and actuators, making it suitable for home automation, industrial control, energy management, smart agriculture, and other applications. XIAO 6-Channel Wi-Fi 5V DC Relay Board Specifications Main module – XIAO ESP32C6 SoC – ESP32-C6  CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory – 512KB SRAM, 16KB low power SRAM Storage – 320KB ROM, and 4MB flash Wireless – 2.4 GHz WiFi 6, Bluetooth […]

Armbian v25.2 ROCK 5T
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Armbian v25.2 and DietPi v9.11 released with updated Ubuntu and Debian-based Linux images for single board computers

Vendor-provided Linux images for single board computers are not always working optimally, so this post is a regular reminder that users may want to check out Armbian and DietPi projects mostly supported by the community but also backed by some of the vendors who offload some (repackaging) software work to them. Armbian and DietPi are separate projects, but this month, Armbian v25.2 and DietPi v9.11 were almost released simultaneously. I don’t report on each release (should I?), but they release an update every few months. The last time we had a look at both projects was in September 2024 for the releases of DietPi 9.7 and Armbian 24.8. Let’s see what the new releases have to bring. Armbian v25.2 Main changes: New Boards – Rock 2A and 2F, NanoPi R3S, Retroid Pocket RP5, RPMini, Rock 5T, GenBook, MKS-PI, SKIPR, Armsom CM5, NextThing C.H.I.P, Magicsee C400 Plus Rockchip 3588 Improvements – […]

STEVAL MKI109D MEMS sensor evaluation board
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STMicro’s STEVAL-MKI109D evaluation board supports all ST MEMS sensors with a DIL24 socket

STMicroelectronics has introduced the STEVAL-MKI109D a MEMS sensor evaluation board, designed to test and optimize STMicro’s MEMS sensors for various applications, including industrial automation, smart agriculture, and consumer electronics. Built around the STM32H563ZI Arm Cortex-M33 MCU this development board features I²C, I3C, and SPI interfaces, along with a TDM interface for high-speed sensor data communication. The board is also compatible with STMicro MEMS DIL24 adapter boards, which makes it easy for engineers to test different sensors. Additionally, it has software-adjustable power circuitry (0–3.6V), and onboard power monitoring for accurate analysis of sensor performance. STEVAL-MKI109D specifications Main MCU – STMicro STM32H563ZI Arm Cortex-M33 MCU with DSP and FPU Storage  – MicroSD card slot Sensors – Supports all STMicro MEMS DIL24 compatible adapter boards Interfaces – I²C, I3C, SPI, TDM USB – USB Type-C connector for power and programming Misc Onboard J6 connector for STM32 programming and debugging Onboard J9 connector for […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
BrodBoost-C USB C power supply breadboard
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Brodboost-C is a USB Type-C breadboard power supply board with adjustable 3.3V or 5V voltage (Crowdfunding)

Axiometa BrodBoost-C is a USB Type-C breadboard power supply with a simple design that powers both rails of a breadboard with voltage adjustable between 3.3V or 5V. It also includes an on/off switch, an LED indicator, and built-in fuse protection. BrodBoost-C specifications: Output voltage – Adjustable: 3.3V or 5V DC Maximum current – 1A Ports USB Type-C connector for power input 2x 2×5 2.54 mm breadboard-compatible power and ground rails 2x 3-pin 2.54 mm selection headers with 2x jumper caps Safety – Short circuit protection Input filtering –  Ferrite bead for noise suppression and decoupling capacitors Misc – Red Power LED, ON/OFF power switch Voltage regulation: 5.0 V selected by USB CC Pins (5.1 k resistors) 3.3 V step-down regulation via AMS1117-3.3 Dimensions – 54 x 19.5 x 11.4 mm Weight – About 20 grams We’ve written about several breadboard power supplies over the years including the Toaster board with […]

SmartPrintCoreH7x Open Source 3D Printer Mainboard
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STM32H7-powered open-source hardware 3D printer mainboard supports up to 6 stepper drivers

Designed by Boltz R&D, the SmartPrintCoreH7x 3D printer mainboard is an open-source mainboard built around an STM32H7 microcontroller and designed to work with 3D printers from Creality, Anet, and Voron. It supports up to 6 stepper drivers (5 standard drivers plus 1 dedicated driver) and can be expanded further using the “SmartPrintCore Extravaganza” module for additional stepper drivers. Key features of this motherboard include a jumper-less setup, automatic power source switching, and support for both 12V and 24V power supplies. It uses high-efficiency TI buck converters to provide power for multiple fan and servo ports, and there is a dedicated power supply for peripherals, SBCs, and Wi-Fi modules. The board is equipped with a variety of connectors, including Molex, Ultra-Fit, Mini-Lock, and JST-GH for power, motors, and peripherals. SmartPrintCoreH7x specifications: MCU – STMicro STM32H723 Arm Cortex-M7 32-bit core @ 550 MHz with 1MB Flash, 564 KB RAM, FPU, DSP, Ethernet, USB […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications