Hey, according to this coding, this is a night lamp circuit. So I am curious about one thing. LDR is an analog sensor. So, the light intensity of the LED at pin 13 will change according to the light intensity received by the LDR. But then according to this coding, it is either a sharp 5V HIGH for the LED at pin 13 or a LOW for the LED. If the sensovalue is <150, which means dark ,so the LED will light up with 5V. But when I play with it, the light intensity of the LED is various with the LDR. So this make me do not understand fully about the coding @@ Can anyone clarify for me ?