Simple Day Night Activated Switch Circuit using a Triac and LDR show how to make circuit which turns ON and OFF things by seeing outside light; also we only need one light sensor (LDR), one resistor, one capacitor and one special switch called Triac. Moreover, many alarm systems use this circuit because it turns ON […]
LDR Circuits
Flashlight Activated Remote Control Circuit
This project show how to make a Flashlight Activated Remote Control Circuit where we can turn it ON using flashlight. Also, the circuit uses a light sensor built with a transistor and a special LDR that detects flashlight. Furthermore, this article tell step-by-step guide how to build flashlight remote circuit and how to use it. […]
Automatic Day Night Switch Circuit
Nowadays, saving electricity is very important and mostly in city where power is not enough. This article for Automatic Day Night Switch Circuit show how to make easy auto light switch which turn ON or OFF light when outside light changes and through this way people can save money on electric bill. What is a […]
Laser Alarm Circuit for Security
This article show how to make a Laser Alarm Circuit for Security which even real spy can use it!, Moreover, the circuit cost less than big expensive alarm from shop and also it is fun to make by ourselves and is good to protect our things. What is a Laser Alarm Circuit for Security A […]
Automatic Street Light Circuit using LDR
In this guide, we show how to use an LDR and a relay to make an Automatic Street Light Circuit. Nowadays, many place uses LED street lights that turn on by itself, because people want to save energy! Therefore, to save power these lights use LDR sensor to know when dark come. Also, this post […]