ACconst int analogInPin = A0;
int sensorValue = 0;
void setup() {
// declare pin to be an output:
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
Serial.begin(9600);
}
// the loop routine runs over and over again forever:
void loop() {
sensorValue = analogRead(analogInPin);
Serial.print("sensor = ");
Serial.print(sensorValue);
Serial.print("\n");
delay(2);
if ((sensorValue >= 100) && (sensorValue <= 600)) {
digitalWrite(2, HIGH);
delay(100);
}
else if ((sensorValue >= 601) && (sensorValue <= 625)) {
digitalWrite(3, HIGH);
delay(100);
}
else if ((sensorValue >= 626) && (sensorValue <= 700)) {
digitalWrite(4, HIGH);
}
else {