STM32+ESP8266+TLINK 远程控制LED

目录

整体框架

单片机部分

ESP8266部分

TLINK平台

实验结果

项目地址

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整体框架

单片机部分

• USART通信（本项目中STM32利用USART2与ESP8266通信）

  void USART2_IRQHandler(void)
  {
    if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET)
    {
  		bufferHead < ESP8266RXBufferMaxLength ? esp8266RXBuffer[bufferHead++] = USART2->DR : USART2->DR;
    }
    if(USART_GetITStatus(USART2, USART_IT_IDLE) != RESET)
  	{
  		USART2->DR; //清除中断
  		esp8266RXBuffer[bufferHead] = '\0';
  		USARTSendArrar(USART1, (uint8_t *)esp8266RXBuffer);
  		bufferHead = 0;
  	}
  }

   

• SysTick延时（延时函数）

  void Delay_us(__IO u32 nTime)
  {
    TimingDelay = nTime;
    while(TimingDelay != 0);
  }

   

• Tim计时器（用于计算ESP8266网络时延）

  void TIM2_IRQHandler(void)
  {
  	if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
  	{
  	  TIM_ClearITPendingBit(TIM2, TIM_FLAG_Update);
        TIM2_Time++;
  	}
  }

   

• GPIO初始化（LED灯IO端口初始化）

  void LED_GPIO_Config(void)
  {
    GPIO_InitTypeDef GPIO_InitStructure;
    RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC, ENABLE); //使能PC端口时钟
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13; //选择对应的引脚
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_Init(GPIOC, &GPIO_InitStructure); //初始化PC端口
    GPIO_SetBits(GPIOC, GPIO_Pin_13 ); //关闭所有LED
  }

   

ESP8266部分

ESP8266库引用了github

• 初始化

  bool esp8266Begin()
  {
  	if(esp8266Test())
  	{
  		if (esp8266SetMux(0))
  			return TRUE;
  		return FALSE;
  	}
  	return FALSE;
  }

   

• Wifi连接

  bool esp8266ConnectAP(const char* ssid, const char* pwd)
  {
  	bool rc = FALSE;
  	if(esp8266SetMode(ESP8266_MODE_STA))
  	{
  		esp8266ClearBuffer();
  		USARTSendArrar(ESP8266_USART, "AT");
  		USARTSendArrar(ESP8266_USART, (uint8_t *)ESP8266_CONNECT_AP);
  		USARTSendArrar(ESP8266_USART, "=\"");
  		USARTSendArrar(ESP8266_USART, (uint8_t *)ssid);
  		USARTSendArrar(ESP8266_USART, "\"");
  		if (pwd != NULL)
  		{
  			USARTSendArrar(ESP8266_USART, ",");
  			USARTSendArrar(ESP8266_USART, "\"");
  			USARTSendArrar(ESP8266_USART, (uint8_t *)pwd);
  			USARTSendArrar(ESP8266_USART, "\"");
  		}
  		USARTSendArrar(ESP8266_USART, "\r\n");
  		rc = esp8266ReadForResponses(RESPONSE_OK, RESPONSE_FAIL, WIFI_CONNECT_TIMEOUT);
  		return rc;
  	}
  	return FALSE;
  }

   

• TCP连接

  bool esp8266TCPConnect(uint8_t * destination, uint8_t * port)
  {
  	bool rsp = FALSE;
  	esp8266ClearBuffer();
  	USARTSendArrar(ESP8266_USART, "AT");
  	USARTSendArrar(ESP8266_USART, (uint8_t *)ESP8266_TCP_CONNECT);
  	USARTSendArrar(ESP8266_USART, "=");
  	USARTSendArrar(ESP8266_USART, "\"TCP\",");
  	USARTSendArrar(ESP8266_USART, "\"");
  	USARTSendArrar(ESP8266_USART, destination);
  	USARTSendArrar(ESP8266_USART, "\",");
  	USARTSendArrar(ESP8266_USART, port);
  	USARTSendArrar(ESP8266_USART, "\r\n");
  	rsp = esp8266ReadForResponses(RESPONSE_OK, RESPONSE_ERROR, CLIENT_CONNECT_TIMEOUT);
  	
  	if(rsp == FALSE)
  	{
  		rsp = esp8266SearchBuffer("ALREADY");
  		if (rsp)
  			return TRUE;
  		return FALSE;
  	}
  	return TRUE;
  }

   

• TCP发送和接收

  bool esp8266TCPSend(uint8_t *buf)
  {
  	bool rsp = FALSE;
  	uint16_t size = strlen((char *)buf);
  	uint8_t i = 0;
  	uint8_t *p = buf;
  	char params[8];
  	if (size > 2048)
  		return FALSE; //ESP8266_CMD_BAD
  	sprintf(params, "%d", size);
  	esp8266SendCommand(ESP8266_TCP_SEND, ESP8266_CMD_SETUP, params);
  	
  	rsp = esp8266ReadForResponses(RESPONSE_OK, RESPONSE_ERROR, COMMAND_RESPONSE_TIMEOUT);
  	//if (rsp > 0)
  	if(rsp)
  	{
  		esp8266ClearBuffer();
  		//usartSendArrar(ESP8266_USART, buf);
  		//usartSendArrar(ESP8266_USART, "\r");
  		for(i=0; i

   

TLINK平台

• 注册账号：Tlink
• 添加设备：参考Tlink帮助中心
• 建立连接

  esp8266TCPSend((uint8_t *)"此处填写申请的序列号")

   

• 收发处理数据

  while(1)
  	{
  		if(esp8266TLINKBufferAvailable())
  		{
  			TlinkProcess();
  		}
  		Delay_us(100000);
  	}

   

接线：

• ESP8266接STM32的USART2
• 电源

实验结果

项目地址

smarthouse