We will go into the detail of the Physics behind the LDR sensor in detail later here let us stick on how to use the LDR sensor simulate it in the Proteus. As it is commonly known fact that resistance of the semiconductors varies due to change in the intensity of light so the Light dependent resistor exploit this property of the semiconductors. The LDR sensors are based on the semiconductor technology which means that they are composed of the Silicon. The LDR sensor is the abbreviation of the Light Dependent Resistor and as the name implies the resistance of this sensor varies in relation to the intensity of light, greater the intensity of light lower will be resistance of the LDR sensor. Before diving deep into the discussion on the main core of this post let us first have the brief introduction of the LDR sensor.
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