int analog_pin=12;
int led_pin=4;
void setup()

{
  Serial.begin(115200);
   pinMode(led_pin,OUTPUT);
   pinMode(analog_pin, INPUT);
   
}
void loop()
{
  int analogstatus=analogRead(analog_pin);
  analogWrite(led_pin,4095);
  Serial.println("light on");
  delay(1000);
  analogWrite(led_pin,0);
  Serial.println("light off");
  delay(1000);
}