# 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.

**2 device listed.**

## Sonoff NSPanel

ESP32-based smart wall switch with 3.5-inch capacitive touchscreen, dual relay outputs, temperature sensor, and buzzer. Flashable with Tasmota for custom LVGL/Berry interfaces and Home Assistant integration.

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

## BigTreeTech TFT35-SPI V2.1

3.5-inch 480x320 SPI touchscreen display for 3D printers, designed for CB1-based boards. Uses ILI9488 SPI LCD driver and NS2009 I2C touch controller, includes an IO2CAN module option.

[Details](https://openhardware.directory/devices/bigtreetech-tft35-spi-v2-1) | [Markdown](https://openhardware.directory/devices/bigtreetech-tft35-spi-v2-1/md)