Here we learn how to build a simple LDR based motion detector sensor circuit using ordinary parts such as LDRs and opamps, reasonably accurately. What are Motion Detectors Motion detector […]
Simple Programmable Timer Circuit
This programmable timer can be used for switching a load ON and OFF with two sets of time delays, which are programmable from 2 seconds to 24 hours independently. The […]
Light Dimmer and Ceiling fan Regulator Circuit
In this post we learn through two examples how to build a simple light dimmer switch circuit for controlling light intensity with pot, using the principle of triac phase chopping. […]
9 Simple Solar Battery Charger Circuits
Simple solar charger are small devices which allow you to charge a battery quickly and cheaply, through solar energy. A simple solar charger must have 3 basic features built-in: It […]
Simple Clap Operated Stairway Light Switch Circuit
In this write up we will discuss how to make a simple clap operated stairway light switch circuit for enabling a brief switch ON of the lights while the user […]
Simple Car Shock Alarm Circuit
A simple car shock alarm circuit presented in this article can eb effectively used to alarm the owner each time the car comes across some kind of vibrational intrusion ether […]