ESP8266 5V Wifi Relay Module Remote Control Switch Phone APP For Smart Home IOT

• ESP8266 generic module connected by quick connect header
• Preprogrammed with firmware from OEM in China
• Default connection by WiFi
• Relay controls 120/250V 5A AC with onboard 5V DC
• Features:diode effusion protection; short response time

ESP module preprogrammed from OEM in China to provide an Accesss point for direct connection, that once the SSID and password of your WiFi is saved, the module will connect to your personal WiFi. Board contains a 5V activated relay by the onboard controller. The onbard relay controller is connected by UART to the ESP8266 generic module.

*Note: this module is generic, and without a USB to UART bridge, thereofre you must use an external programmer to reprogram the module. The json provided by Espressif contains OTA code in case you wish to update, or reprogram the module over WiFi.

Documentation for the ESP8266

Example ESP8266 Powered Smart Home Relay