Working method 1: When the mobile phone is mounted on the WiFi module, the commands are sent in the following order:

(The default baud rate is 115200)

     1. AT+CWMODE=2, namely select AP mode;

     2. AT+RST, reset;

     3. AT+CIPMUX=1, open multiple connections;

   4. AT+CIPSERVER=1,8080, configure the TCP server and set the port number;

  5. AT+CIOBAUD=9600, set the baud rate to 9600. (Because the relay control chip works at the baud rate 9600)

  6. AT+CIFSR, check the IP address in AP mode, for example: APIP, "192.168.4.1";

  7. The WIFI signal whose mobile phone connection name starts with AI-THINKER or ESP8266;

     8. Enter the address and port in the "TCP connection" APP, such as 192.168.4.1 and 8080;

     9. Click the corresponding gray square to control the relay.