Open Hardware Directory

Feather-format ATmega32u4 board with integrated nRF51822 Bluetooth LE, LiPo charging, native USB, 20 GPIO, and over-the-air firmware updates — an all-in-one BLE development board for iOS and Android c

Mid-range RK3576 SBC with 4x Cortex-A72 + 4x Cortex-A53 at 2.2GHz, up to 8GB RAM, dual Gigabit Ethernet, M.2 NVMe, HDMI 4K, 6 TOPS NPU, MIPI-CSI/DSI, 30-pin GPIO, and USB-C PD in a compact 90×62mm for

Espressif official ESP32-S3 development board with ESP32-S3-WROOM-1 module, dual-core 240 MHz LX7, up to 45 GPIO, dual USB ports, and available in three memory variants: 8MB/2MB PSRAM, 8MB/8MB PSRAM,

Compact ItsyBitsy-format ESP32 board with 8MB flash, 2MB PSRAM, PCB antenna, Wi-Fi + Bluetooth Classic + BLE, 20 GPIO, NeoPixel, STEMMA QT, and Micro-B USB.

Compact ESP32-C3 keyboard terminal with a built-in 0.99" display, Wi-Fi, Bluetooth 4.2, 400mAh battery, and a 3D-printed shell for portable wireless input applications.

LILYGO T-FPGA is a development board combining an ESP32-S3 microcontroller with a Gowin GW1NSR-4C FPGA chip, enabling flexible hardware logic design alongside Wi-Fi and Bluetooth connectivity.

Wireless microcontroller board featuring the RP2040 dual-core Cortex-M0+ processor with built-in WiFi 4 and Bluetooth 5.2 (BLE). Supports MicroPython, CircuitPython, and C/C++ development.

Low-cost, community-supported ARM Cortex-A8 development platform with 512MB DDR3L, 4GB eMMC, HDMI, USB, 10/100M Ethernet, 2x PRUs, and expandable via BeagleBone capes. Boots Linux in under 10 seconds.

3.5-inch dual-mode 3D printer display with STM32 processor supporting both touchscreen TFT mode and classic 12864 LCD mode. Compatible with Marlin and most BIGTREETECH control boards.

Ultra-compact ESP32-H2 dev module with Thread 1.4, Zigbee 3.0, Matter, and BLE 5 — featuring a Grove port, IR transmitter, and RGB LED in a stamp-sized 23.5×12mm form factor.

Compact automatic bed leveling probe for 3D printers including Ender-3, B1, and H2 extruder platforms. Supports Voron Stealthburner, EVA, and other popular toolhead mounts. Open source hardware.

Espressif AIoT dev kit — ESP32-S3, 2.4″ 320×240 display, dual MEMS microphones, speaker, 16 MB Flash, 8 MB PSRAM, WiFi, BLE 5, Pmod expansion — the dock-free Lite sibling of the ESP32-S3 Box.

Tiny 22.86mm AI vision module with STM32H747 dual-core Cortex-M7/M4, 2MP camera, WiFi/BLE, 6-axis IMU, microphone, and time-of-flight sensor — runs TinyML image recognition and OpenMV/MicroPython at t

Filament Transmission Distance (TD) and HEX color measurement tool for 3D printing. Captures true filament color and TD values for HueForge integration to build accurate filament libraries and fix col

360-degree 2D laser scanner with 12m range and 8000 samples per second. Widely used for ROS robotics, SLAM mapping, and autonomous navigation applications.

Arduino Uno-compatible WiFi dev board with ESP32-S2 single-core @ 240MHz, 4MB Flash, 2MB PSRAM, native USB-C, STEMMA QT, LiPoly charging, MAX17048 fuel gauge, barrel jack, and UNO shield compatibility

Texas Instruments SK-AM68 Starter Kit — quad-core Cortex-A72 evaluation board with 8GB LPDDR4 and 4 TOPS vision processing for industrial machine vision and edge AI.

8-axis Klipper-native 3D printer control board with STM32G0B1VET6 MCU, BTB connector for CM4/CB1, CAN bus, eFuse protection, Ethernet, and selectable CNC fan voltage.

Sensor-packed Nano board with nRF52840 ARM Cortex-M4F at 64MHz, BLE 5.0, 9-axis IMU, microphone, temperature, humidity, pressure, light, and gesture sensors — designed for TinyML and edge AI projects

The DC Boarduino is a slim, breadboard-friendly Arduino-compatible development board based on the ATmega328 at 16MHz, with a 2.1mm DC barrel jack for 7–17V input, USB-TTL serial header, ICSP programmi

The ODROID M2 is Hardkernel's high-performance SBC featuring the Rockchip RK3588S octa-core SoC with up to 16GB LPDDR4X RAM, 2.5GbE networking, and M.2 NVMe storage. It targets demanding workloads inc

Open-source flight controller board with RP2350B MCU, 10-DOF sensor suite (gyro, accelerometer, barometer, magnetometer), INA226 battery monitor, microSD with 4-bit SDIO, and DC-DC converter. 50.7x41.

ESP32-S2 Feather with an onboard BME280 temperature, humidity, and barometric pressure sensor, plus 4 MB flash, 2 MB PSRAM, native USB-C, STEMMA QT, and LiPoly charging.

The Adafruit PyPortal is an all-in-one CircuitPython WiFi IoT display board featuring an ATSAMD51J20 Cortex-M4F, ESP32 WiFi coprocessor, 3.2" 320×240 color touchscreen, built-in speaker, NeoPixel, mic

Arduino Nano form factor powered by ESP32-S3 with WiFi 802.11 b/g/n, Bluetooth LE 5.0, dual-core Xtensa LX7 at 240MHz, 8MB flash, 512KB SRAM, USB-C, and HID support — Arduino's compact IoT powerhouse