Hi Everyone, This is my 1st Arduino's tutorial video. In this video i am going to show you how to use a LDR or Light Dependent resistor to turn on and off another circuit or a LED. Wouldn’t it be ...

The user can choose whether to use the circuit as the light or dark sensor. The same output can be used to drive an LED, indicating the detection of light or dark. A photoresistor can be paired with ...

Here three LDR sensors are used to control the brightness of individual Red, Green and Blue LED inside RGB Led. Learn more about controlling LDR with Arduino here. There are two types of RGB LEDs, one ...

2. It is built around an Arduino Uno board (board1), PIR sensor connected across CON2, two BC547 npn transistors (T1, T2), a 12V one changeover relay (RL1), small LDR (LDR1), a piezo buzzer (PZ1), a ...

In this circuit, we are making a Light Sensor using LDR with Arduino to control a bulb/CFL as per light condition of the room or outside area. LDR is Light Dependent Resistor. LDRs are made from ...