#include <AltSoftSerial.h>

int sentid = 3;
bool serialstop=true;
AltSoftSerial mySerial;

void setup() {
  Serial.begin(9600); //communication rate of the Bluetooth module
  mySerial.begin(9600);
}

void loop() {
  mySerial.write(48);
  Serial.print("4");
  while(mySerial.available()==0){
    mySerial.print(48);
    Serial.print("4");
    delay(1500);
  }
  Serial.println("read");
  serialstop=true;
  while(serialstop){
    sentid = mySerial.read();
    if (sentid == 1) {
      Serial.println("1");
    }
    else if (sentid == 2) {
      Serial.println("2");
    }
    else if (sentid == 3) {
      serialstop=false;
    }
  }
  Serial.println("write");
  delay(5000);
}