int sensor_pin = A0;
int output_value ;
int relay_pin = 7;
void setup() {
  Serial.begin(9600);
  Serial.println("Reading From the Sensor ...");
  pinMode(relay_pin,OUTPUT);
  }

void loop() {

  output_value= analogRead(sensor_pin);

  output_value = map(output_value,1023,0,0,100);
  Serial.print("Mositure : ");
  Serial.print(output_value);
  Serial.println("%");
  if(output_value < 50 ){
    digitalWrite(relay_pin,LOW);
  }else{
    digitalWrite(relay_pin,HIGH);
  }
  delay(1000);
  }