Original info
5V or 12V WiFi relay module carried a ESP8266 WiFi module and microcontroller. It will send the serial port instructions to the cell phone APP and Implementation within the local area network (LAN) for wireless control relay.
Vendor materials
Product site: http://www.chinalctech.com/cpzx/1/332.html More tools and docs under vendor materials directory
Realay cannot switch but the code running fine in esp8266 wifi module and GPIO send high signal
Test code
Arduino ino and header with wifi login infor all file available in 'test_code' folder
- The modified schematic
- Modified circuit
- Relay test video
Modifcation by Charles K Barcza - kbarcza@blackpantehr.hu