Mini WIFI Relay Board, Signal Relay, ESP8285 R2

Description Based on ESP8285 MCU WIFI IC All IOs lead out on pin header, pitch 2.0mm. Easy for embedded project. Support battery supply, include cable On board 2A 30VDC HDF4/3 signal relay, output on 3.5mm pitch green cable terminal. Package include main board, and battery power cable. Documentation, demo video please see here.