# 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.**

## BigTreeTech ESP8266 WiFi Module

ESP8266-based WiFi transceiver expansion module for BTT 3D printer control boards. Available in ESP12S and ESP-07 variants, enabling wireless connectivity and remote control via serial UART.

[Details](https://openhardware.directory/devices/bigtreetech-esp8266-wifi-module) | [Markdown](https://openhardware.directory/devices/bigtreetech-esp8266-wifi-module/md)

## BigTreeTech BTT RRF WiFi V1.0 Module

ESP8266-based WiFi expansion module for RepRapFirmware (Duet-style) boards. Adds wireless connectivity to BTT SKR V1.3, SKR V1.4 Turbo, and compatible boards running RRF or Marlin firmware.

[Details](https://openhardware.directory/devices/bigtreetech-btt-rrf-wifi-v1-0-module) | [Markdown](https://openhardware.directory/devices/bigtreetech-btt-rrf-wifi-v1-0-module/md)