Light 1 ON 0 OFF

/*
 RXD = 아두이노 2번핀에 연결
 TXD = 아두이노 3번핀에 연결
*/

#include <SoftwareSerial.h>
SoftwareSerial BTSerial(3,2);

void setup() {
  Serial.begin(9600);
  BTSerial.begin(9600);
  pinMode(8, OUTPUT);
}

void loop() {
  if(BTSerial.available()){
    char ch = BTSerial.read();
    Serial.write(ch);
    if (ch =='0'){
      Serial.write("LED OFF");
      digitalWrite(8, LOW);
      }
    else if (ch == '1'){
      Serial.write("LED ON");
      digitalWrite(8, HIGH);
      }  
    //Serial.write(BTSerial.read());
  }

  if (Serial.available()){
    BTSerial.write(Serial.read());
  }
}