It’s like Dark and light Detector circuit but this time we are using Arduino to get more control over light. In this circuit, we are making a Light Sensor using LDR with Arduino to control a bulb/CFL ...

An LDR can typically gauge the light or dark because of its specially tuned spectral response. A light or dark sensor can be designed by using ... amp circuit and performs the decision-making ...

The Arduino Uno records voltage variations across the LDR using Arduino’s internal analogue-to-digital converter (ADC) at a sampling rate of 25 (which can be changed by the programmer). It then takes ...