This simple electronic siren circuit project aims to explain designing a simple circuit for an electronic siren. It is built on a single chip – CD4011 (IC1). In order to […]
Ultrasonic Alarm Circuit
This post talks about an excellent ultrasonic alarm circuit that could be efficiently established for detecting sound pressures over the natural human hearing capability, which could cover from 20 kHz […]
Simple Solar Plant Watering Alarm Circuit
In this post we learn a simple solar water plant watering alarm circuit which is powered from a small solar cell and provides a buzzer alarm sound whenever the soil […]
High Temperature Fire Alarm Circuit Using Transistors
The post narrates the making of a simple high temperature fire alarm circuit using transistors only, and not with conventional heat sensors. Though we don’t pay much heed to fire […]
Simple Laser Alarm Circuit
The article details an uncomplicated laser beam dependent security alarm circuit that could be set up in agricultural areas and fields for detecting just about all potential intrusions, sometimes by […]
Laser Operated Security Alarm Circuit
We all might have usually observed laser alarm system as an important part of security solution specifically for a location which ought to get hi-level security. Starting from a museum […]