Copyright © 2013 - 2023. All rights reserved.

A project site for all ages.

Enter Your Search Key :
Share on Facebook Share on Twitter Share on Delicious Share on Digg Share on Google Bookmarks Share on Stumble Upon Share on Reddit Share on Tumblr Share via e-mail

How to make a simple light sensor switch ?

Download Schematic


Buy it

Light sensing switch using LDR (Light Dependent Resistor) and a 555 timer.

When light is fall on the LDR sensor, the LED is turn ON and the Fan is OFF. When light is shielded from the LDR sensor, the LED is turn OFF and the Fan is turn ON.

To learn more about the schematic you can download free by completing a simple survey or buy it here.