arduino

#include <SoftwareSerial.h>
#include <Wire.h>
#include <dht11.h>
#define DHT11PIN 2

SoftwareSerial I2CBT(10,11); // TX:10, RX:11

int LEDA = 12;
int LEDB = 13;
byte serialA;
dht11 DHT;

void autoA(int x){

  if (x<29){
          digitalWrite(LEDA,LOW);
          Serial.print("current X=");
          Serial.println(x);
          Serial.println("LEDA,LOW");

          }
          else{
          digitalWrite(LEDA,HIGH);
          Serial.print("current X=");
          Serial.println(x);
          Serial.println("LEDA,HIGH");
          }
          return;
}
void autoB(int x){
  if (x<29){
          digitalWrite(LEDB,LOW);
          Serial.print("current X=");
          Serial.println(x);
          Serial.println("LEDB,LOW");

          }
          else{
          digitalWrite(LEDB,HIGH);
          Serial.print("current X=");
          Serial.println(x);
          Serial.println("LEDB,HIGH");
          }
          return;
}

void setup(){
  Serial.begin(9600);
  I2CBT.begin(9600);
    pinMode(LEDA, OUTPUT);
    pinMode(LEDB, OUTPUT);
}

void loop (){
   byte cmmd[20];
  int chk = DHT.read(DHT11PIN);
  int insize;
  int x=DHT.temperature;
  int y=DHT.humidity;
  int tempA;
  int tempB;

 while(1){
    if ((insize=(I2CBT.available()))>0){
       Serial.print("input size = ");
       Serial.println(insize);
       for (int i=0; i<insize; i++){
         Serial.print(cmmd[i]=char(I2CBT.read()));
         Serial.print("\n");
       }

    }
      Serial.print(" X=");
      Serial.println(x);
      delay(1000);
      switch (cmmd[0]) {
      case 97: //"a"
          digitalWrite(LEDA,HIGH);
          tempA=0;
          break;
      case 98://"b"
          digitalWrite(LEDA,LOW);
          tempA=0;
          break;
      case 99://"c"
           autoA(x);

         break;


      case 100: //"d"
           digitalWrite(LEDB,HIGH);
           tempB=0;
           break;
      case 101://"e"
           digitalWrite(LEDB,LOW);
           tempB=0;
           break;
      case 102://"f"
           autoB(x);

           break;
      } //Switch

  } //while

}