Esp 01 12V 2relay module from LC Tech

[PeteKnight]

Have you tried this…

ESP8266 Relay Module not working with Blynk [solved]

In my first post i wrote that I have ESP8266 relay module in which ESP01 communicates with relay board in serial sending TX command and this code work as espected that is it turn on and of my relay: .. byte relON[] = {0xA0, 0x01, 0x01, 0xA2}; //Hex command to send to serial for open relay byte relOFF[] = {0xA0, 0x01, 0x00, 0xA1}; //Hex command to send to serial for close relay .. Serial.write(relON, sizeof(relON)); // turns the relay ON Serial.write(relOFF, sizeof(relOFF)); // turns the…

Pete.