งานปฏิบัติ 3

Code

#include <SoftwareSerial.h>

#define TIMEOUT 5000 // mS

#define LED 5

SoftwareSerial mySerial(7, 6); // RX, TX

void setup()

{

 pinMode(LED,OUTPUT);

 Serial.begin(115200);

 mySerial.begin(115200);

 SendCommand("AT+RST", "Ready");

 delay(5000);

 SendCommand("AT+CWMODE=1","OK");

 SendCommand("AT+CIFSR", "OK");

 SendCommand("AT+CIPMUX=1","OK");

 SendCommand("AT+CIPSERVER=1,80","OK");

}

void loop(){

 String IncomingString="";

 boolean StringReady = false;

 while (mySerial.available()){

   IncomingString=mySerial.readString();

   StringReady= true;

  }

  if (StringReady){

    Serial.println("Received String: " + IncomingString);

  if (IncomingString.indexOf("LED=ON") != -1) {

    digitalWrite(LED,HIGH);

   }

  if (IncomingString.indexOf("LED=OFF") != -1) {

    digitalWrite(LED,LOW);

   }

  }

 }

boolean SendCommand(String cmd, String ack){

  mySerial.println(cmd); // Send "AT+" command to module

  if (!echoFind(ack)) // timed out waiting for ack string

    return true; // ack blank or ack found

}

boolean echoFind(String keyword){

 byte current_char = 0;

 byte keyword_length = keyword.length();

 long deadline = millis() + TIMEOUT;

 while(millis() < deadline){

  if (mySerial.available()){

    char ch = mySerial.read();

    Serial.write(ch);

    if (ch == keyword[current_char])

      if (++current_char == keyword_length){

       Serial.println();

       return true;

    }

   }

  }

 return false; // Timed out

}