Open Hardware Directory

EFR32MG21-based Zigbee 3.0 USB coordinator dongle for Home Assistant and Zigbee2MQTT. A popular, reliable choice for building smart home Zigbee networks.

ESP32-based MicroPython IoT module with 802.11b/g/n WiFi, Bluetooth LE and Classic, 8MB flash, 4MB RAM, and ultra-low power ULP co-processor for deep-sleep GPIO monitoring at 25 µA.

32-bit 3D printer control board with STM32F446ZET6 MCU, 8 stepper driver slots (9 outputs), CAN bus via RJ11, USB-C, WiFi header, and support for Marlin and Klipper firmware.

Libre Computer Solitude (AML-S905D3-CC) — Amlogic S905D3 quad-core Cortex-A55 SBC with 2/4GB LPDDR4, 1.2 TOPS NPU, 4× USB 3.0, Gigabit Ethernet with PoE, and 4K HDR HDMI 2.0 in a Pi-compatible layout.

Texas Instruments AM62L display evaluation module with dual Cortex-A53 @ 1.25GHz, 2GB LPDDR4, 32GB eMMC, dual Gigabit Ethernet, DSI + HDMI display outputs, WiFi/BT M.2, and USB-C — purpose-built for e

ESP32-S3-WROOM-1 development board with MAX13487E RS-485 transceiver, T-PCIE SIM expansion slot, Grove connector, WiFi, and BLE — designed for vending machine control and industrial RS-485 communicati

Pocket-sized open-source LoRa mesh messenger with ESP32-S3, RFM95 radio, 2.8" IPS display, and 36-key QWERTY keyboard. Runs Meshtastic and CircuitPython firmware for off-grid text communication.

WiFi IoT automation board with ESP32-S2, built-in 1.54″ color TFT, barometric pressure, humidity, temperature sensors, DotStar LEDs, capacitive touch, and a speaker.

ESP32-S3 development board with integrated camera and Wi-Fi HaLow (802.11ah) module for long-range wireless video transmission up to 1-2km at speeds up to 32 Mbps. Features USB-C, SD card slot, and Li

Industrial-grade embedded computer module with BCM2711 quad-core Cortex-A72 @ 1.5GHz, 1–8GB LPDDR4 RAM, optional 8–32GB eMMC and optional dual-band WiFi + Bluetooth 5.0. Available in 32 hardware varia

ESP32-S3 Feather board with 8MB flash, w.FL external antenna connector (MHF3/IPEX3), native USB-C, MAX17048 battery monitor, LiPo charging, NeoPixel, and STEMMA QT.

Compact 0.91-inch monochrome OLED display module with 128x32 pixel resolution and SSD1306 driver. Communicates over I2C interface, ideal for small status readouts and embedded projects.

Industrial-grade network computing SBC by SolidRun, powered by the Marvell Armada 388 SoC, 1GB DDR3, 4GB eMMC, dual Gigabit Ethernet + SFP, mPCIe, SATA, and 12V DC power for router and NAS application

The classic breadboard-friendly Arduino — ATmega328P at 16MHz, 32KB flash, 2KB SRAM, 14 digital I/O (6 PWM), 8 analog inputs, Mini-B USB, and 5V operation in a tiny 45×18mm form factor. The compact or

ESP32-S3 based air quality monitor with SEN55 particulate/VOC sensor, SCD40 CO2 sensor, 1.54" e-ink display, 600mAh battery, and Grove connector.

Skull-shaped wearable microcontroller with ATSAMD21G18 at 48MHz, 1.44" 128x128 TFT display, 3-axis accelerometer, light sensor, 4 capacitive touch pads, 2W speaker driver, 8MB SPI flash, and LiPo char

Programmable ESP32 smartwatch with 1.54-inch touch IPS display, BMA423 accelerometer, PCF8563 RTC, PDM microphone, speaker, IR transmitter, and vibration motor — fully open-source and Arduino/MicroPyt

ESP32-S3 e-paper development board with 4.7-inch 540×960 16-grayscale display (EDO47TC1), Wi-Fi, Bluetooth 5.0, PCF8563 RTC, 16MB flash, 8MB PSRAM, and optional capacitive touch overlay.

Allegro A4988-based stepper motor driver module with microstepping up to 1/16 step, handling up to 2A per coil. Includes heatsink. Essential for 3D printers, CNC machines, and precision robotics.

Tiny 27mm round sewable wearable microcontroller with ATtiny85 at 8 MHz, 3 GPIO, Micro USB programming, 3.3V power, and reverse-polarity protection — ideal for small LED and NeoPixel wearable projects

Improved 32-bit control board with 4 integrated TMC2209 UART drivers, dual Z ports, and STM32F103RCT6 @ 72MHz. Drop-in upgrade for Ender 3, CR-10S, Ender 5. Marlin and Klipper ready.

ESP32-S3 LoRa voice kit with MAX98357A speaker, MSM261S4030HOR microphone, vibration motor, RTC, 0.96-inch SSD1306 OLED, 4MB Flash, 2MB PSRAM, and SX1262/SX1276/SX1280 radio options — designed for LoR

A compact, low-cost dual-channel LoRaWAN gateway based on ESP32 and dual SX1276 transceivers, designed for indoor LoRa coverage of 1500-2000 square meters with support for SF7-SF12 spreading factors a

Feather-format development board combining the ATmega32u4 microcontroller with an RFM95 LoRa 868/915 MHz transceiver for long-range, low-power IoT applications.

High-performance Arduino-compatible board powered by the NXP iMX RT1011 Cortex-M7 at 500 MHz, with 8MB QSPI flash, microSD slot, STEMMA QT, and USB-C.