Open Hardware Directory

Credit card-sized RISC-V SBC with quad-core StarFive JH7110 @ 1.5GHz, up to 8GB LPDDR4, Gigabit Ethernet with PoE, 40-pin GPIO, 4K HDMI. Raspberry Pi form factor.

Dual-MCU smart panel (ESP32-S3 + ESP32-H2) with 4" 480×480 IPS LCD (ST7701S), WiFi, BLE, native Zigbee/Thread/Matter via H2 co-processor, and optional RS485/CAN FD expansion for wall-mounted smart hom

Dual-MCU Zigbee development board combining ESP32-C3 (WiFi/BLE) and Telink TLSR8258 (Zigbee/BLE Mesh) — both run simultaneously for bridging Zigbee sensor networks to WiFi/cloud platforms.

ESP32-WROVER development board with Decawave DWM1000 UWB module for centimeter-accurate indoor positioning and ranging, featuring a 1.3\" OLED display and LiPo battery charging.

ESP32-S3 IoT controller with 2.0" capacitive touch IPS display, GC0308 camera, dual microphones, 1W speaker, BMI270 IMU, BMM150 magnetometer, proximity sensor, 200mAh battery, and Grove expansion port

Dual-MCU IoT development platform featuring ESP32-S3 and RP2040 processors with a 4-inch capacitive touchscreen, WiFi, BLE, optional LoRa, and multiple Grove sensor connectors for IoT prototyping.

Klipper-ready 3D printer control board for Ender 3/5 with STM32G0B1 MCU, BTB connector for CM4/CB1, 5 EZ stepper slots, CAN bus, and direct Ender 3 compatibility.

Open-source Raspberry Pi 5 PCIe HAT with Intel I226 2.5G Ethernet NIC, dual SMA connectors for 1PPS input/output, built-in TCXO, and M.2 slot for GNSS modules. Ideal for PTP grandmaster clocks.

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.

Open-source ESP32-S3 smartwatch with LoRa, 1.3" 240×240 IPS touchscreen, haptic feedback, accelerometer, speaker, microphone, IR transmitter, and 1500mAh battery. Supports Meshtastic, ESPHome, Arduino

AI-focused single board computer with 5 TOPS NPU, quad-core ARM Cortex-A53, 4GB LPDDR4, dual MIPI CSI cameras, and ROS2 support for robotics and edge AI.

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

AI-capable development board powered by KENDRYTE K230 dual-core 64-bit RISC-V SoC running at 1.6GHz with KPU neural network accelerator, 4.1" AMOLED display, and LoRa connectivity in multiple frequenc

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.

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

Arduino's first 32-bit ARM board based on the AT91SAM3X8E Cortex-M3 at 84 MHz with 512KB flash, 96KB SRAM, dual USB ports, 2 DACs, and 12 PWM channels in Mega form factor.

Enhanced ESP32-S3 handheld with CC1101 sub-GHz radio, nRF24L01 2.4GHz radio, 1.9" IPS LCD, IR transceiver, 16MB flash, 8MB SRAM. Upgraded version of T-Embed CC1101 with added 2.4GHz wireless module.

Open-source ESP32 development board with built-in Ethernet, Power-over-Ethernet support, micro-SD card slot, and LiPo battery connector. Ideal for wired Tasmota nodes and industrial IoT applications.

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.

Arduino UNO-compatible development board built around the ATmega328P at 16 MHz with 32KB flash, micro USB, and Adafruit's signature black PCB with gold-plated pads.

DIY smartwatch kit powered by ESP32 with ST7735S display, 6-axis IMU, Bluetooth connectivity, and programmable via CircuitBlocks visual coding environment.

u-blox M10 GPS module with IST8310 compass for Pixhawk flight controllers. Supports GPS, GLONASS, Galileo, and BeiDou constellations with onboard safety switch, buzzer, and LED indicator.

ATSAMD21G18 ARM Cortex-M0+ Feather board with RFM95 LoRa radio at 868/915 MHz. Spread-spectrum LoRa modulation for multi-kilometre range, 256KB flash, 32KB RAM, native USB, and built-in LiPo charger.

Solar-capable power management module based on CN3065 for charging an 18650 Li-ion battery via Micro USB, solar panel input (5.3V+), or BAT input, with 5V/1A USB output for powering devices up to 1A c

LILYGO T3 S3 LR1121 is an ESP32-S3 development board with a Semtech LR1121 multi-band transceiver supporting sub-GHz (830–940 MHz) and 2.4 GHz LoRa, plus a 0.96" OLED display and microSD card slot.