# 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.

**3 device listed.**

## HestiaPi ONE (Silent)

Open-source smart thermostat based on Raspberry Pi Zero W with 3.5\" touchscreen, BME280 sensor, and silent solid-state relays. Fully local control with no cloud dependency, MQTT support, and Home Assistant compatibility.

[Details](https://openhardware.directory/devices/hestiapi-one-silent) | [Markdown](https://openhardware.directory/devices/hestiapi-one-silent/md)

## Raspberry Pi Zero W

Ultra-compact single-board computer with BCM2835 ARM11 at 1 GHz, 512MB RAM, built-in 802.11b/g/n WiFi (BCM43143), Bluetooth 4.1 LE, mini HDMI, microSD, camera connector, and 40-pin GPIO header in a 65mm × 30mm footprint.

[Details](https://openhardware.directory/devices/raspberry-pi-zero-w) | [Markdown](https://openhardware.directory/devices/raspberry-pi-zero-w/md)

## Milk-V Duo S

Compact RISC-V/ARM dev board with SG2000 SoC, 512MB RAM, optional WiFi 6/BT5, dual MIPI CSI cameras, 0.5 TOPS TPU. Runs Linux and RTOS simultaneously.

[Details](https://openhardware.directory/devices/milk-v-duo-s) | [Markdown](https://openhardware.directory/devices/milk-v-duo-s/md)