int outPin = 1;
void setup(){

  pinMode(outPin,OUTPUT);
  Serial.begin(112500);
  Serial.println("Enter 1 or 0");
}
void loop(){
  if(Serial.available()>0)
  {
    char ch = Serial.read();
    if (ch == '1')
  {
    digitalWrite(outPin,1);
  }
  else if (ch == '0')
  {
    digitalWrite(outPin,LOW);
  }
  }
  }