By using such characteristic of LDR we can build a LDR Darkness sensor circuit which turn ON light in darkness and turn OFF light when there is sufficient light. Also we can build reveres of it also ...

The output from the LDR op-amp circuit can be used to drive an LED directly or via Arduino. In this tutorial, the circuit has been taken on a PCB, in which the operation as a light or dark sensor can ...

In this article we will see how can we build a darkness sensor by using LDR sensor. This sensor detect light falling on it and change it resistance accordingly. This change in resistance of LDR detect ...

For this Keyhole Light Circuit, we need a light sensor to detect the light condition and some circuitry to control the Light sensor. We are using a LDR to get control according to the intensity of ...

Here in this project we are going to make a Simple Automatic Street Light Controller Using Relay and LDR. This circuit is simple and can be built with Transistors and LDR, you don’t need any op-amp or ...

Light Dependent Resistors (LDRs) are essential components in various electronic applications, relying on the principle of photoconductivity to function. This article delves into the construction and ...

Through a set of webpages, users can remotely control a light intensity sensed through a Light Dependent Resistor (LDR) sensor connected in an arm of a configurable Wheatstone Bridge (WB), whose ...

Setting the threshold at which the circuit switches the output is adjusted by a variable trimpot acting as a voltage divider with the LDR.