PIR Burglar Alarm Circuit

Introduction Security is the major issue. Public places like malls, government places like parliament, and courts. edu In this tutorial, we are going to make a “PIR Burglar Alarm Circuit”. The PIR sensors have two … Read more

PIR Burglar Alarm Circuit

Charger Circuit Failure Alarm

Introduction Does that happen to you that you place your device for charging and someone removed the device to charge theirs? Does that make you angry? Because the time when you want the device to … Read more

Charger Circuit Failure Alarm

Door Knob Touch Alarm Circuit

In this tutorial, we are going to make a “Door Knob Touch Alarm Circuit”. There are many simple alarm devices for personal use in bedrooms or hotel rooms. In which a metal chain attached to … Read more

Door Knob Touch Alarm Circuit

The Panic Alarm allows a person under duress to quickly call for help in the event of an emergency. There are many types of panic alarm circuits available. Some have a single pushbutton and others … Read more

Simple Panic Alarm Circuit