# 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.

**4 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)

## Airlytix ES1

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 open YAML configuration.

[Details](https://openhardware.directory/devices/airlytix-es1) | [Markdown](https://openhardware.directory/devices/airlytix-es1/md)

## HeishaMon Communication PCB

Open-source ESP-based communication PCB for local monitoring and control of Panasonic Aquarea heat pumps via MQTT and HTTP, with Home Assistant integration and S0 energy metering support.

[Details](https://openhardware.directory/devices/heishamon-communication-pcb) | [Markdown](https://openhardware.directory/devices/heishamon-communication-pcb/md)

## BigTreeTech Octopus Pro V1.1

High-voltage 3D printer control board with STM32H723ZE MCU, 8 stepper driver slots supporting up to 60V motor power, CAN bus, PT100/PT1000 support, and Marlin/Klipper/RRF firmware.

[Details](https://openhardware.directory/devices/bigtreetech-octopus-pro-v1-1) | [Markdown](https://openhardware.directory/devices/bigtreetech-octopus-pro-v1-1/md)