The following post discusses a simple ion detector circuit which can be used for detecting positive and negative ions generated by high voltage circuits. This device can be also used […]
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Simple Electronic Dog Whistle Circuit Explained
An electronic dog whistle is a device that generates ultrasonic sound waves and is used for training dogs and for controlling excessive barking habit. Because dogs and domestic cats can […]
Basic Op Amp Circuits and Projects
In the following article I have explained op amp basic application circuits and projects, with equations, for solving their specific component values. Op-amps (operational amplifiers) are a specialized type of […]
7 Automatic Street Light Circuits [Using Relays and Solar Panel]
In this article I will elucidate 7 useful yet simple automatic street light circuits using 220 V relays and solar panel. All the presented circuits can be used for automatically […]
Audible Meditation Timer Circuit
In this post I will show how to construct a timer circuit for meditation practices which gives out beeping sound between 1 and 9 seconds (user selectable) and this beeping […]
Bicycle Speedometer Circuit
In this article I have explained how to build a simple bicycle speedometer circuit which can be used to measure the speed of the bicycle. Video Demonstration What is a […]