This is a compact 1-channel wireless relay switch module based on the ESP8266 ESP-12F WiFi development board, designed for smart home automation. It operates directly on AC 90–250V input and can control AC or DC devices through WiFi using platforms like ESPHome, Tasmota, Home Assistant, or Arduino IDE. It includes an onboard 5V or 7–28V power supply module, relay driver circuit, optocoupler isolation, and a robust design for switching loads up to 10A.
This module is ideal for DIY IoT projects, wireless remote control of home appliances, lights, fans, and integration into cloud platforms.
Key Features:
Built-in ESP-12F WiFi Module based on ESP8266
AC input support from 90V to 250V
Supports external DC power 5V or 7–28V or 5–80V
1-Channel Relay with switching capability up to 10A at 250V AC
Onboard optocoupler isolation for safe operation
Status LEDs for power, relay, and WiFi
Programmable via UART interface
Supports Over the Air firmware updates
Compatible with Tasmota, ESPHome, Arduino, NodeMCU
