Working method 1: When the mobile phone is mounted on the WiFi module, send commands in the following order:
(Default baud rate 115200)
1. AT+CWMODE=2, select AP mode;
2. AT+RST, reset;
3. AT+CIPMUX=1, enable multiple connections;
4. AT+CIPSERVER=1,8080, configure TCP server, set port number;
5. AT+CIOBAUD=9600 sets the baud rate to 9600. (Because the relay control chip works at a baud rate of 9600)
6. AT+CIFSR, check the IP address in AP mode, for example: APIP,"192.168.4.1";
7. The mobile phone connects to the WIFI signal whose 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 box to control the relay.
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