Open Hardware Directory

Texas Instruments SK-AM69 Starter Kit — octa-core Cortex-A72 evaluation board with 32GB LPDDR4 and 64 TOPS AI accelerator for high-performance edge AI and autonomous systems.

Mini-ITX single-board computer powered by Rockchip RK3588 with 16GB LPDDR4X, dual NVMe slots, dual 2.5GbE, PCIe x4, ATX power, and WiFi 6 — a true desktop motherboard replacement.

ESP32-S3 multi-protocol RF tool with CC1101 sub-GHz transceiver (300–928 MHz), 13.56 MHz RFID, IR transmit/receive, 1.9" IPS display, and rotary encoder for RF analysis and replay attacks.

The Orange Pi PC 2 is a 64-bit single-board computer based on the Allwinner H5 quad-core Cortex-A53 SoC with 1GB DDR3 RAM and Gigabit Ethernet, offering a cost-effective ARM64 Linux platform for maker

Tiny Seeed XIAO-compatible ESP32-S2 dev board with 4 MB flash, 2 MB PSRAM, native USB-C, STEMMA QT, WiFi, 13 GPIO, and 10 ADC inputs — no Bluetooth, all in a 21.8 × 17.9 mm footprint.

Mid-range Rockchip RK3576 SBC from Radxa with up to 8GB LPDDR4X, NVMe M.2, WiFi 6, Gigabit Ethernet, and USB 3.0 — a capable Linux board in a compact footprint.

Compact ESP32-PICO-V3-02 board with rotary encoder, WS2812 RGB LED ring, Wi-Fi, BLE 4.2, 8MB flash, and 2MB PSRAM. Ideal for knob-based UI controllers and volume/parameter controls.

Adafruit's Feather-format ESP32 board with dual-core Xtensa LX6 @ 240MHz, WiFi b/g/n, Bluetooth Classic + BLE 4.2, built-in LiPo charger, and Feather-compatible pin layout. Great all-around wireless I

ESP32 development board combining LoRa radio (SX1276/SX1278), u-blox NEO-6M GPS, 0.96" OLED display, and 18650 battery support — the go-to board for Meshtastic and LoRa tracking projects.

4.3-inch 800x480 IPS capacitive touchscreen expansion board for BTT Pi, CB1, CB2, and Raspberry Pi CM4. Connects via 40-pin GPIO DPI interface with GT911 touch controller for Klipper UI.

ESPHome-native indoor air quality sensor with PM1.0/PM2.5/PM4/PM10, CO2, VOC, NOx, temperature, humidity, pressure, light, and sound monitoring. Designed for Home Assistant with full local control and

Smallest official Arduino with native USB, based on ATmega32u4 at 16 MHz. Breadboard-friendly at 48×18mm with 20 I/O pins, 12 analog inputs, and USB HID/CDC emulation capability.

Updated ESP32 Mini32 development board with 8MB PSRAM, 4/16MB Flash options, dual-core 240MHz, CH9102 USB-serial, WiFi, BLE 4.2, and 1.25mm JST LiPo connector in a 40×31mm breadboard-friendly footprin

Feather board with nRF52840 ARM Cortex-M4F at 64MHz, BLE 5.0, native USB (CDC/HID/MIDI/MSC), 1MB flash, 256KB SRAM, 2MB QSPI flash, 21 GPIO, SWD debug, and LiPo charging. Supports Arduino and CircuitP

Compact Pico-form-factor development board featuring the Raspberry Pi RP2350B dual-architecture MCU with WiFi and Bluetooth 5.2 via the Raspberry Pi Radio Module 2, 16MB flash, 26 GPIO pins, and USB-C

Tiny 22.86mm AI voice module with nRF52840 BLE 5.0, Syntiant NDP120 neural decision processor, MEMS microphone, 6-axis IMU, and magnetometer — runs always-on voice recognition and audio anomaly detect

Ultra-compact ESP32-PICO-D4 development board (24x24mm) with RGB LED, programmable button, IR transmitter, Grove port, and 6 GPIO pins. Supports Arduino, ESP-IDF, UIFlow, and MicroPython.

ESP32-based dual-relay WiFi smart switch with per-channel power monitoring, roller shutter mode, and 2×10A outputs. Ideal for motorized blinds with Tasmota shutter calibration and position tracking.

Tiny breadboard-friendly Bluetooth LE board with Nordic nRF52840 Cortex-M4F @ 64MHz, 1MB Flash, 256KB RAM, 2MB QSPI Flash, 21 GPIO, and native USB — all in a 36×17.6mm footprint. Supports CircuitPytho

Card-sized x86 compute module with Intel Core i3-N305 8-core (up to 3.8GHz), 16GB LPDDR5, 64GB eMMC, 9 PCIe 3.0 lanes, triple display output, and open-source KiCAD carrier board design.

ESP32 LoRa development board with a Temperature Compensated Crystal Oscillator (TCXO) for enhanced LoRa frequency stability, 0.96-inch SSD1306 OLED display, 4MB Flash, WiFi, BLE 4.2, TF card slot, and

Compact nRF52840 + SX1262 LoRa development board with BLE 5.0, optional 1.14" TFT display and L76K GPS module. Designed for Meshtastic mesh networking, LoRaWAN, and battery-powered IoT deployments wit

5-inch 800x480 IPS WiFi touchscreen for Bambu Lab X1, P1, and A1 series 3D printers. ESP32-S3 based, 16MB flash, 8MB PSRAM, built-in battery for portable use, supports up to 4 printers simultaneously.

Ultra-compact ESP32-S3 board by Unexpected Maker in TinyPICO form factor with u.FL external antenna connector, 8MB flash, 8MB PSRAM, LiPo charging, and dual-core 240 MHz.

Libre Computer Alta (AML-A311D-CC) — Amlogic A311D hexa-core SBC with 4GB LPDDR4, 5 TOPS NPU, Mali-G52 GPU, 4× USB 3.0, Gigabit Ethernet with PoE, and 4K HDR HDMI 2.0 in a Pi-compatible form factor.