SMART AUTOMATION SYSTEM USING ARDUINO AND RAIN DROP SENSOR BLOCK DIAGRAM Arduino Code #include<Servo.h> intrain_sensor = A0, servo = 3; Servo myServo; void setup() { Serial.begin(9600); myServo.attach(servo); myServo.write(0); } void loop() { intsensorvalue=analogRead(rain_sensor); int motor = map(sensorvalue, 220,1023,180,0); myServo.write(motor); Serial.println("Sensor vlaue is "); Serial.println(sensorvalue); Serial.println("Servo motor rotates by angle "); Serial.println(motor); delay(1000); }