int ledPin1 = 8; int ledPin2 = 12; int buzzer = 12; int motor = 5; int sensor1 = 2; int sensor2= 4; int sensorvalue1 = 0; int valueLow1 = 0; int sensorvalue2 = 0; int valueLow2=0; void setup() { pinMode(ledPin1, OUTPUT); pinMode(ledPin2,OUTPUT); //pinMode(buzzer,OUTPUT); pinMode(sensor1,INPUT); pinMode(sensor2, INPUT); pinMode(motor,OUTPUT); Serial.begin(9600); } void loop() { digitalWrite(sensor1, HIGH); digitalWrite(sensor2,HIGH); sensorvalue1 = digitalRead(sensor1); sensorvalue2 = digitalRead(sensor2); Serial.print("water low :"); Serial.println(sensorvalue1); Serial.print("water high : "); Serial.println(sensorvalue2); if(sensorvalue1 == 1) { digitalWrite(ledPin1,!valueLow1); } else { digitalWrite(ledPin1,LOW); } if(sensorvalue2 == 1) { digitalWrite(ledPin2, !valueLow2); analogWrite(motor,150); Serial.println("ON"); } else { digitalWrite(ledPin2, LOW); analogWrite(motor,0); digitalWrite(buzzer,HIGH); delay(100); digitalWrite(buzzer,LOW);` Serial.println("OFF"); } delay(500); }