This post explains how to build an easy transformerless power supply circuits. These circuits are compact and simple and they all use capacitors to step down the AC voltage from […]
Simple FM Remote Control Circuit
This guide will show you how to build your own remote control system for your home! We’ll use a regular FM radio (with a slight modification) to receive the signal […]
Simple Transistor Latching Circuit Explained
In this article, we’ll explore how to build a basic transistor latch circuit using only two BJTs (Bipolar Junction Transistors) and some resistors. Introduction A transistor latch is a type […]
Simple Vehicle Immobilizer Circuit
If you have a car without a security system, or if the one you have isn’t working, you can easily choose an affordable and reliable security solution by setting up […]
ULN2003 Water Level Controller Circuit
The ULN2003 is a chip which contains seven separate sections, each made up of special transistors called Darlington pairs. These pairs are designed to manage moderate amounts of electrical current, […]
Water Level Controller Circuit Using NOT Gates IC 4049
You can make a basic device to stop your water tank from overflowing using just one IC 4049 chip. This device, not only prevents overflow but also shows you the […]