Open Hardware Directory

Espressif reference development board for the ESP32-C6 with 8MB flash, Wi-Fi 6, Bluetooth 5 LE, Zigbee 3.0, Thread, RGB LED, dual USB-C ports, and full GPIO breakout.

Arduino Uno-compatible board with ATSAMD51J19 Cortex M4F at 120MHz, ESP32 AirLift WiFi co-processor with TLS/SSL, 512KB flash, 192KB RAM, 2MB QSPI flash, 25 GPIO, dual DAC/ADC, and native USB. Arduino

QT Py-sized ESP32-S2 dev board with a uFL connector for an external 2.4 GHz antenna, 4 MB flash, 2 MB PSRAM, native USB-C, STEMMA QT, and 13 GPIO — for improved WiFi range.

RP2040 Feather with integrated RFM95W LoRa radio at 915 MHz (SX1276), 8MB flash, up to 20 km range, LiPo charging, STEMMA QT, and uFL antenna connector.

Minimal ESP32 breakout board with dual-core Xtensa LX6 at 240MHz, 520KB SRAM, 4MB flash, WiFi 802.11 b/g/n, Bluetooth Classic + BLE, 12 ADC, 2 DAC. No USB converter or battery charger — requires exter

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 Raspberry Pi 500+ is a premium all-in-one keyboard computer with the Raspberry Pi 5 processor, 16GB LPDDR4X RAM, 256GB internal NVMe SSD, mechanical Gateron KS-33 switches with RGB, dual-band WiFi

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

2-megapixel camera module with SCCB/I2C interface, commonly used with ESP32-CAM and other microcontroller boards for image capture, video streaming, and computer vision projects.

Feather-format ATmega32u4 board at 8 MHz, 3.3V with LiPo charging, native USB, onboard prototyping area, 20 GPIO, JST battery connector, and 100mA integrated charger — all in 51×23mm.

Banana Pi CM4 IO is an SBC carrier board for the BPI-CM4 compute module, featuring RK3566, 4GB LPDDR4, 32GB eMMC, WiFi 5, PCIe, HDMI, and Gigabit Ethernet.

Toolhead board designed for the Voron StealthBurner. Powered by RP2040, supports CAN and USB, includes TMC2209, ADXL345 accelerometer, and PT100/PT1000 for Klipper 3D printers.

ESP32 development board with LAN8720 Ethernet, 16MB flash, 8MB PSRAM, WS2812 RGB LED, SIM/TF card slots, and T-PCIE expansion support for industrial IoT, wired networking, and CAN bus applications.

ESP32-S3 board with 1.91-inch RM67162 AMOLED display (240×536), optional touch, 16MB flash, 8MB PSRAM, and USB-C — delivering vivid OLED visuals for IoT dashboards and smart displays.

Breakout module for the InvenSense ICM-20948 9-axis MEMS IMU, combining a 3-axis gyroscope, 3-axis accelerometer, and 3-axis magnetometer with an onboard Digital Motion Processor for real-time motion

Banana Pi M2+ is a compact SBC powered by the Allwinner H3 quad-core SoC with 1GB DDR3, 8GB eMMC, 802.11n WiFi, Bluetooth 4.0, four USB 2.0 ports, and micro-USB power.

Libre Computer Tritium H5 — Allwinner H5 quad-core 64-bit SBC with 1GB/2GB DDR4, 8GB eMMC, Gigabit Ethernet, and four USB 2.0 ports in a Raspberry Pi-compatible layout.

ESP32-S3 AI camera module with 2MP wide-angle night vision sensor, I2S speaker and microphone, ambient light sensor, WiFi/BLE 5.0, and edge AI inference support in a 42x42mm package.

Affordable Rockchip RK3568 quad-core SBC from Radxa with up to 8GB LPDDR4, eMMC, microSD, Gigabit Ethernet, USB 3.0, PCIe, and M.2 expansion — no built-in WiFi, powered via USB-C or 12V DC.

5-inch 800x480 IPS WiFi touchscreen controller for Klipper printers. ESP32-S3 based, 16MB flash, 8MB PSRAM, built-in battery for 30 minutes portable use, supports up to 50 Klipper printers.

Arduino's most powerful board — dual-core STM32H747XI with Cortex-M7 at 480MHz + Cortex-M4 at 240MHz, 2MB flash, 1MB RAM, WiFi, Bluetooth, 76 GPIO, USB-A + USB-C, 3.5mm audio jack, camera connector, a

The Adafruit Monster M4SK is a wearable dual-display Halloween mask board powered by ATSAMD51 Cortex-M4F at 120MHz with 8MB flash, two 240×240 IPS TFT eye displays, stereo audio, microphone, STEMMA co

Open-source 4-bay NAS server board by Kobol, powered by the Marvell Armada 388 SoC, 2GB DDR3, 4× SATA, Gigabit Ethernet, USB 3.0, and 12V DC — designed for self-hosted home and SMB network storage.

NASA-themed programmable smartwatch powered by ESP32-S3 with BLE 5.0, 6-axis IMU, ST7735S display, and activity tracking. Pre-assembled and ready to code.

Feather-format ESP32-S3 dual-core 240 MHz board with 8 MB flash, native USB-C, BLE, WiFi, STEMMA QT, LiPoly charging, and MAX17048 — no PSRAM variant for leaner memory budgets.