MQTTで始めるIoTデバイスの作り方 第5回：部屋の明るさを「パブリッシュ」する：MQTTで始めるIoTデバイスづくり（5）（3/5 ページ）

#include <SoftwareSerial.h>
SoftwareSerial mySerial(10, 11); // RX, TX
byte con[]={0x10,0x21,0x00,0x06,'M','Q','I','s','d','p',0x03,0x02,0x00,0x3c,0x00,0x13,'m','o','s','q','s','u','b','/','1','2','5','1','6','-','h','i','r','o','3'};
byte pub[]={0x30,0x11,0x00,0x0b,'a','r','d','u','i','n','o','/','a','2','/','0','0','0','0'};
 
void getResponse(int j){
  int i;
  for (i=0;i<j;i++){
      if (mySerial.available())
         Serial.write(mySerial.read());
      delay(1);
    }
  }
void setup()
{
  int i,j;
  Serial.begin(9600);
  mySerial.begin(9600); 
  while(!Serial);
  mySerial.print("AT+RST\r\n");
  getResponse(5000);
  mySerial.print("AT+CIPSTART=\"TCP\",\"192.168.1.16\",1883\r\n");
  getResponse(1000);
  mySerial.print("AT+CIPSEND=35\r\n");
  getResponse(1000);
  for (i=0;i<35;i++)mySerial.write(con[i]);                  
  getResponse(1000); 
}
void loop(){
  int i,v,n;
  mySerial.print("AT+CIPSEND=19\r\n");
  getResponse(1000);  
  v = analogRead(2);
  n=int(v/1000);
  pub[15]='0'+n;
  v = v -(n*1000);
  n=int(v/100);
  pub[16]='0'+n;
  v = v - (n*100);
  n=int(v/10);
  pub[17]='0'+n;
  v = v - (n*10);
  pub[18]='0'+v;
  for (i=0;i<19;i++)mySerial.write(pub[i]); 
  getResponse(1000);  
}