int WHITE_LED = 12;

int LDR;

int sensorPin=A5;

void setup() { pinMode(WHITE_LED, OUTPUT); Serial.begin(9600); }

void loop() {

LDR= analogRead(sensorPin); Serial.println(LDR); delay(100);

if (LDR<140) {

digitalWrite(WHITE_LED, HIGH); }

else { digitalWrite(WHITE_LED,LOW); }

}