Light up through TCP

Simply record your study notes , Use hardware STM32F103_MINI Development board + Adapter plate +esp8266, Applet Baiwen embedded Internet applet (TCP).

Development board use esp8266 In the same LAN as the mobile applet , Development board use esp8266 Set to TCP The server , Mobile applet as TCP client , So as to realize the two-way communication of data .

The first half is to set the development board to TCP The serial port of the server prints information .

The middle part is the development of mobile phone applet connection TCP After the server (192.168.1.6:9999), Data sent to mobile server . 

The second half is the data sent by the development board to the mobile applet .

The most important part here is the upper part , Set the development board to TCP The server . The following steps are required ：

(1) Reset esp8266 

ESP8266_SendCommand("AT+RST", "OK", 500);
  HAL_Delay(1000);

(2) Set up esp8266 Pattern (1：Station Pattern )
  ESP8266_SendCommand("AT+CWMODE=1", "OK", 500);

(3) Development board connection wifi.
  ESP8266_SendCommand("AT+CWJAP=\"wifi_name\",\"wifi_password\"", "OK", 5000);

(4) Set up multiple connections
  ESP8266_SendCommand("AT+CIPMUX=1", "OK", 500);

(5) there 1 establish tcp The server ,999 Represents a port
  ESP8266_SendCommand("AT+CIPSERVER=1,9999", "OK", 500);

(6) View the current ip
  ESP8266_SendCommand("AT+CIFSR", "OK", 500);

(7) send data , First mover length required , And then there's the data , such as ：

AT+CIPSEND=0,9
{1234567}

(8) receive data

IPD,0,9{1234567}

In addition to using wechat applet to communicate with the development board , We can also use TCP The client communicates with it , The effect is the same .