# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**19 device listed.**

## CUBEEK CubeSat Educational Kit

Open-source 1U CubeSat educational kit powered by Arduino Pro Mini with LoRa communication, multi-sensor payload (IMU, barometer, GPS, temperature), solar-powered EPS, and ground station dashboard for learning satellite engineering.

[Details](https://openhardware.directory/devices/cubeek-cubesat-educational-kit) | [Markdown](https://openhardware.directory/devices/cubeek-cubesat-educational-kit/md)

## AVR-HF ADX-MI3

Pre-built digital mode QRP transceiver for amateur radio, supporting FT8, FT4, JS8, and WSPR on HF bands from 160m to 6m with ~5W output, OLED display, and single USB-C cable operation.

[Details](https://openhardware.directory/devices/avr-hf-adx-mi3) | [Markdown](https://openhardware.directory/devices/avr-hf-adx-mi3/md)

## DFRobot Beetle CM-32U4

Ultra-compact Arduino Leonardo-compatible microcontroller board with ATmega32U4, integrated lithium battery charging, and native USB in a tiny 22x20.5mm form factor.

[Details](https://openhardware.directory/devices/dfrobot-beetle-cm-32u4) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-cm-32u4/md)

## DFRobot Beetle BLE

Ultra-compact Arduino Uno-compatible board with BLE 4.0 (CC2540), ATmega328P, sewable gold-plated I/O pads, and wireless programming in a 28.8x33.1mm wearable form factor.

[Details](https://openhardware.directory/devices/dfrobot-beetle-ble) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-ble/md)

## DFRobot FireBeetle 328P BLE 4.1

Low-power Arduino-compatible board with ATmega328P and Dialog BLE 4.1 chip, featuring 14 digital I/O, 6 analog inputs, wireless OTA programming, 25uA deep sleep, onboard LiPo charging, and dual interrupt wakeup in a compact 58x29mm form factor.

[Details](https://openhardware.directory/devices/dfrobot-firebeetle-328p-ble) | [Markdown](https://openhardware.directory/devices/dfrobot-firebeetle-328p-ble/md)

## DFRobot Beetle Board

The original coin-sized Arduino Leonardo-compatible board with ATmega32U4, native USB, 10 digital and 5 analog pins, and sewable gold-plated pads in a 20x22mm form factor.

[Details](https://openhardware.directory/devices/dfrobot-beetle-board) | [Markdown](https://openhardware.directory/devices/dfrobot-beetle-board/md)

## Circuit Playground Classic

All-in-one ATmega32u4 learning board with 10 NeoPixels, LIS3DH accelerometer, microphone, speaker, light and temperature sensors, and 8 capacitive touch pads in a circular 2-inch form factor.

[Details](https://openhardware.directory/devices/circuit-playground-classic) | [Markdown](https://openhardware.directory/devices/circuit-playground-classic/md)

## Seeeduino Cloud

Arduino Yun-compatible board combining ATmega32u4 with a Dragino HE Linux WiFi module running OpenWRT. Features 802.11 b/g/n WiFi, Ethernet, 14 digital I/O pins, and USB host for IoT gateway applications.

[Details](https://openhardware.directory/devices/seeeduino-cloud) | [Markdown](https://openhardware.directory/devices/seeeduino-cloud/md)

## Adafruit Feather 32u4 RFM69HCW 868/915 MHz

ATmega32u4 Feather board with RFM69HCW sub-GHz radio supporting 868/915 MHz with up to +20 dBm transmit power, AES-128 encryption, and 100mA LiPo charger for long-range IoT sensor networks.

[Details](https://openhardware.directory/devices/adafruit-feather-32u4-rfm69hcw-868-915) | [Markdown](https://openhardware.directory/devices/adafruit-feather-32u4-rfm69hcw-868-915/md)

## Adafruit Feather 32u4 RFM69HCW 433 MHz

ATmega32u4 Feather board with RFM69HCW sub-GHz radio at 433 MHz with up to +20 dBm transmit power, AES-128 encryption, and built-in LiPo charger for long-range sensor networks in the 433 MHz ISM band.

[Details](https://openhardware.directory/devices/adafruit-feather-32u4-rfm69hcw-433) | [Markdown](https://openhardware.directory/devices/adafruit-feather-32u4-rfm69hcw-433/md)

## Adafruit Feather 32u4 RFM95 LoRa 868/915 MHz

ATmega32u4 Feather board with RFM95W SX1276 LoRa radio for 868/915 MHz long-range communication. Achieves 2+ km range, supports spreading factors SF6-SF12, and includes a built-in LiPo charger.

[Details](https://openhardware.directory/devices/adafruit-feather-32u4-rfm95-lora-868-915) | [Markdown](https://openhardware.directory/devices/adafruit-feather-32u4-rfm95-lora-868-915/md)

## Adafruit Feather 32u4 RFM96 LoRa 433 MHz

ATmega32u4 Feather board with RFM96W SX1278 LoRa radio for 433 MHz long-range communication. Achieves 2+ km range with quarter-wave antennas, supports LoRaWAN, and includes a built-in LiPo charger.

[Details](https://openhardware.directory/devices/adafruit-feather-32u4-rfm96-lora-433) | [Markdown](https://openhardware.directory/devices/adafruit-feather-32u4-rfm96-lora-433/md)

## Arduino UNO Mini Limited Edition

Miniaturised collector's Arduino UNO with ATmega328P at 16 MHz in a 34.2 × 26.7 mm form factor with USB-C, individually numbered and signed by Arduino's founders.

[Details](https://openhardware.directory/devices/arduino-uno-mini-limited-edition) | [Markdown](https://openhardware.directory/devices/arduino-uno-mini-limited-edition/md)

## Adafruit Feather 32u4 RFM69HCW (868/915 MHz)

Feather-format development board combining the ATmega32u4 microcontroller with an RFM69HCW 868/915 MHz packet radio for low-power sub-GHz wireless applications.

[Details](https://openhardware.directory/devices/adafruit-feather-32u4-rfm69hcw) | [Markdown](https://openhardware.directory/devices/adafruit-feather-32u4-rfm69hcw/md)

## Adafruit Feather 32u4 RFM96 LoRa (433 MHz)

Feather-format development board combining the ATmega32u4 microcontroller with an RFM96 LoRa 433 MHz transceiver for long-range, low-power IoT applications.

[Details](https://openhardware.directory/devices/adafruit-feather-32u4-rfm96) | [Markdown](https://openhardware.directory/devices/adafruit-feather-32u4-rfm96/md)

## Adafruit Feather 32u4 RFM95 LoRa (900 MHz)

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

[Details](https://openhardware.directory/devices/adafruit-feather-32u4-rfm95) | [Markdown](https://openhardware.directory/devices/adafruit-feather-32u4-rfm95/md)

## Arduino Uno Rev3

The original Arduino UNO — the world's most popular development board with ATmega328P at 16MHz, 32KB flash, 2KB SRAM, 14 digital I/O (6 PWM), 6 analog inputs, USB-B, and 5V operation. The gateway to electronics and programming for millions.

[Details](https://openhardware.directory/devices/arduino-uno-rev3) | [Markdown](https://openhardware.directory/devices/arduino-uno-rev3/md)

## Arduino Nano

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 original.

[Details](https://openhardware.directory/devices/arduino-nano) | [Markdown](https://openhardware.directory/devices/arduino-nano/md)

## BIQU RGBDuino UNO V1.2

Arduino UNO-compatible development board based on ATmega328P-AU at 16MHz/5V, featuring RGB LED indicators. Available in Geek Duck (V1.1) and Jenny (V1.2) variants for maker and education projects.

[Details](https://openhardware.directory/devices/biqu-rgbduino-uno-v1-2) | [Markdown](https://openhardware.directory/devices/biqu-rgbduino-uno-v1-2/md)