const int ldrPin = A0;
int ldrValue= 0;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(ldrPin, INPUT);
}
void loop() {
// put your main code here, to run repeatedly:
ldrValue = analogRead(ldrPin);
Serial.print("LDR value: ");
Serial.println(ldrValue);
delay(1000);
}