Question

我想知道此代码中哪些内容最常用于互联网，但我无法与Mega 2560建立连接

#include <SoftwareSerial.h>

#define DEBUG true

SoftwareSerial esp8266(2,3); // make RX Arduino line is pin 2, make TX   Arduino line is pin 3.
                         // This means that you need to connect the TX line from the esp to the Arduino's pin 2
                         // and the RX line from the esp to the Arduino's pin 3
 void setup()
 {
  Serial.begin(9600);
  esp8266.begin(9600); // your esp's baud rate might be different

    pinMode(11,OUTPUT);
    digitalWrite(11,LOW);

    pinMode(12,OUTPUT);
    digitalWrite(12,LOW);

    pinMode(13,OUTPUT);
    digitalWrite(13,LOW);

     sendData("AT+RST\r\n",2000,DEBUG); // reset module
     sendData("AT+CWMODE=2\r\n",1000,DEBUG); // configure as access point
     sendData("AT+CIFSR\r\n",1000,DEBUG); // get ip address
     sendData("AT+CIPMUX=1\r\n",1000,DEBUG); // configure for multiple connections
     sendData("AT+CIPSERVER=1,80\r\n",1000,DEBUG); // turn on server on port 80
 }

 void loop()
{
 if(esp8266.available()) // check if the esp is sending a message 
 {


if(esp8266.find("+IPD,"))
{
 delay(1000); // wait for the serial buffer to fill up (read all the serial data)
 // get the connection id so that we can then disconnect
 int connectionId = esp8266.read()-48; // subtract 48 because the read() function returns 
                                       // the ASCII decimal value and 0 (the first decimal number) starts at 48

 esp8266.find("pin="); // advance cursor to "pin="

 int pinNumber = (esp8266.read()-48)*10; // get first number i.e. if the pin 13 then the 1st number is 1, then multiply to get 10
 pinNumber += (esp8266.read()-48); // get second number, i.e. if the pin number is 13 then the 2nd number is 3, then add to the first number

 digitalWrite(pinNumber, !digitalRead(pinNumber)); // toggle pin    

 // make close command
 String closeCommand = "AT+CIPCLOSE="; 
 closeCommand+=connectionId; // append connection id
 closeCommand+="\r\n";

 sendData(closeCommand,1000,DEBUG); // close connection
}
}
}

  /*
  * Name: sendData
  * Description: Function used to send data to ESP8266.
   * Params: command - the data/command to send; timeout - the time to wait for a response; debug - print to Serial window?(true = yes, false = no)
    * Returns: The response from the esp8266 (if there is a reponse)
   */
   String sendData(String command, const int timeout, boolean debug)
  {
   String response = "";

esp8266.print(command); // send the read character to the esp8266

long int time = millis();

while( (time+timeout) > millis())
{
  while(esp8266.available())
  {

    // The esp has data so display its output to the serial window 
    char c = esp8266.read(); // read the next character.
    response+=c;
  }  
}

if(debug)
{
  Serial.print(response);
}

return response;
}

HTML

 <html>
<head>
    <title>ESP8266 LED Control</title>
</head>
<body>

<!-- in the <button> tags below the ID attribute is the value sent to the arduino -->

<button id="11" class="led">Toggle Pin 11</button> <!-- button for pin 11 -->
<button id="12" class="led">Toggle Pin 12</button> <!-- button for pin 12 -->
<button id="13" class="led">Toggle Pin 13</button> <!-- button for pin 13 -->

<script src="jquery.min.js"></script>
<script type="text/javascript">
    $(document).ready(function(){
        $(".led").click(function(){
            var p = $(this).attr('id'); // get id value (i.e. pin13, pin12, or pin11)
            // send HTTP GET request to the IP address with the parameter "pin" and value "p", then execute the function
            $.get("http://192.168.4.1:80/", {pin:p}); // execute get request
        });
    });
</script>
</body>

我尝试发送GET参数，但我没有成功，Arduino程序的控制台发送了AT，但没有答案。

但是这会创建一个连接到的LAN。

有任何不兼容性吗？

我怎么能连接Arduino Mega 2560 + esp8266 + HTML？

0 个答案: