Introduction For the sake of security, The presence of any people or object in a certain region/place is detected using a light fence circuit. Using an LDR and an Op-amp, the circuit is relatively simple … Read more
LDR Circuits
Welcome to our comprehensive collection of LDR circuits, designed to add light sensing capabilities to your electronic projects. Whether you’re a hobbyist, DIY enthusiast, or professional engineer, our range of circuits offers versatile solutions for using Light Dependent Resistors (LDRs) in various applications. Explore circuit designs for automatic lighting systems, dusk-to-dawn switches, and light intensity meters, equipped with features such as adjustable sensitivity, response time, and threshold levels. Our detailed guides, tutorials, and circuit diagrams provide step-by-step instructions, optimization tips, and creative ideas for building and customizing LDR circuits. Enhance your projects with accurate and reliable light sensing functionality using our curated selection of high-quality LDR circuit.
Introduction The term “laser” does not require an explanation. It is widely used in a variety of sectors. If you’re a student or perform document-related work, you’ve probably seen lasers in printers; if you’re a … Read more
Laser Security Alarm Circuit using LDR
Introduction Many alarm and security devices of today’s era adept light detector devices for their circuits. Because it helps to trigger those alarms to detect the greater light intensity to aware the user. These light … Read more
Light Detector with Sensitivity Control Circuit LM741
Introduction To save energy and electricity you may have seen that many countries are adopting those electronic LED street lights which turn ON automatically after the sunset. Basically, these LED lights use LDR in their … Read more
Automatic Street Light Controller using LDR
Introduction Darkness scares most of us, and who knows, maybe that was the reason that light got invented. But, today our topic is not about light but the dark. The darkness detector sensor. But, the … Read more
Darkness Detector Circuit
An LED Emergency Light powers ON when there is not enough lighting or if the main power supply is cut-off. Earlier, fluorescent lights were used to build such circuits. But the use of LEDs has … Read more
LED Emergency Light Circuit Using LDR (Light Dependent Resistor)
In this tutorial, we are going to make a “Light Detector With Sensitivity Control Circuit”. The light detector circuit detects the quantity of light present in the environment and the results can be seen by … Read more
Light Detector with Sensitivity Control Circuit
A darkness detector is a square wave generator interfaced with an LDR (light-dependent resistor). In this project, the 555 Timer IC-based MULTIVIBRATOR Square Wave Generator is created. Since this circuit is mostly based on LDR … Read more
Dark Detector using LDR and 555 Timer IC
Introduction In many countries, you may have seen those electronic LED street lights which turn ON automatically after the sunset. Basically, these LED lights use LDR in their circuit. LDR, is a Light-dependent resistor, as … Read more
LED Flasher Circuit with LDR
A light sensor circuit activates when light is detected by the circuit. It is a simple circuit including a photoresistor followed by a transistor. When light strikes the surface of the photoresistor, light energy is … Read more
Simple Light Sensor Circuit
Here we will demonstrate a circuit for a dark detector using 555 timer IC and an LDR that detects light in the area, activating ICs and lights up LEDs connected to the circuit if the … Read more
Simple LDR Circuit 555 Timer
Introduction: Security alarms are an important part of many systems these days. They are designed to indicate the forbidden movements or actions such as prohibited entry at any place or taking any prohibited thing or … Read more
Laser Security Alarm Circuit
For ages, Candles have been of great use; it has been directing people at night even before Edison concocted the thought of bulbs. Today, from Churches to kitchens, Candles are utilized not exclusively to give … Read more
DIY Smart Electronic Candle using LDR
Does the switch ever make you feel shocked? It usually does not happen, but often it can be hazardous to physically touch the switches. But What if you have to press a button on or … Read more
Wireless Switch Circuit using LDR and CD4017
In this tutorial, on Wheatstone bridge’s principle, we construct a light detector circuit. We believe that “Eyes feel what the mind sees.” Just like LDR, if the source of light in the sensor field is … Read more
Light Detector Circuit using Wheatstone Bridge
Introduction Safety Wellbeing is the main issue all over the Planet. Many individuals protect their homes and offices by employing a gatekeeper, however, commonly these gatekeepers additionally get hit by gatecrashers. The LASER Based Security … Read more