A very simple mud or soil moisture tester circuit can be built by using a single opamp and a few passive components, let’s learn the details through the following article. […]
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Make this Crystal Radio Set Circuit using No Batteries
A crystal radio circuit is probably the simplest form of radio that uses hardly any electronic components, and needs absolutely no external power for the operations. Crystal Radio Concept The […]
3 Easy Capacitive Proximity Sensor Circuits Explored
In this post we comprehensively discuss a 3 basic proximity sensor circuits with many application circuits and detailed features of the circuit. The first two capacitive proximity sensor circuits uses […]
Automatic Evaporative Air Cooler Circuit
In this post we study a simple moisture sensor circuit which enables an evaporative air cooler to automatically restore the wetness level of its evaporative pad by detecting its moisture […]
LED Meteor Shower, Rain Tube Circuit
In this post we learn how to design an intriguing LED light effect that generates a collapsing metor shower like appearance. The idea was requetsed by Mr.Pinto Mondal. Technical Specifications […]
5 Simple Siren Circuits you can Build at Home
In this post we learn about a 5 simple siren circuits, using Arduino and also with ordinary components such as transistors and capacitors yet is able to produce an alarm […]