Want to be your own home security hero? This post will show you how to build a basic laser alarm circuit like something a real spy might use. It is a fun project you can do yourself to protect your stuff and it is easier on the wallet than fancy store bought alarms. What is […]
Simple Rain Detector Alarm Circuit
Do you wish to avoid a sudden downpour from wetting your clothes? This article can teach you something. We’ll show you how to build a simple rain detector alarm circuit. In order to warn you when to bring umbrellas or other outside objects inside, this circuit uses a sensor to detect rainfall and then sounds […]
Automatic Street Light Circuit using LDR
In this post we learn how to build an automatic street light circuit using LDR and relay. Saving energy is important, so many places are using special street lights with LEDs that turn on by themselves! These lights sense darkness using a light sensor called an LDR which helps save power. This article explains how […]
Adjustable Timer Circuit using 555 IC with Buzzer
In this article, I will show you how to create a timer circuit that can be adjusted with a buzzer using the IC 555. To me a timer is like a miniature clock designed for electronics. These timers have the ability to switch things on and off at predetermined times. We come across them in […]