Hello, I am using a 2 channel relay module (http://www.chinalctech.com/xwzx/24.html) with ESP-01 to control the relays. I have uploaded a custom code to ESP-01. ESP-01 is supposed to connect to my WiFi, start a HTTP server and wait for requests. Based on the HTTP request received, it should switch t...

Ok,it started working with ESP instead of USB. This is the test code: void setup() { Serial.begin(115200); } void loop() { //open first relay char bb[] = {0xA0, 0x01, 0x01, 0xA2}; Serial.write(bb, sizeof(bb)); delay(1500); //close first relay char bb1[] = {0xA0, 0x01, 0x00, 0xA1}; Serial.write(bb1, ...

Hello, I am trying to use a 2x relay ESP module (http://www.chinalctech.com/xwzx/24.html) to work as USB module, but the module does not seem to respond to the instructions sent via serial. I have connected the module like this: relaymod.png In words: - TX of USB is connected to the RX on the board ...