In this section you will learn and build simple electronic circuits projects. You will make interesting analog electronic circuits useful in daily life. Moreover, you will know electronic circuit design using circuit elements.
The circuits include home made electronic circuits, hobbyist circuits and prototypes.
This is the concluding part of the LED strobe article published last year (https://www.codrey.com/electronic-circuits/led-strobe-primer-part-1/). During this long period (sorry for the inadvertent delay) I have already shared several strobe light ideas. But the sequel to […]
Welcome to the lovely sound of analog electronics! Now I’m building some white noise and pink noise generators for an upcoming amateur audio project. In this article, you can see a few basic design ideas […]
Even though I have a large collection of TP4056 modules for charging lithium-ion cells, I recently found a pretty small charger module – TP5100 – capable of charging a single lithium-ion cell or two lithium-ion […]
This guide details how to build a simple sawtooth wave generator using the venerable 555 timer chip that can be used to test some of your homemade circuits and projects. Got any questions? I’m happy […]
Peephole proximity sensor presented here is an inexpensive nearness detector for hobby electronics projects and home automation applications, where we need to sense the presence of a person (or object) in front of an entry […]
A fish bite indicator is a mechanical bell or electronic alarm that indicates to an angler that something is happening at the hook end of the fishing line. There are many types of fish bite […]
This article is a mere pointer on how to build a mighty light-emitting diode flashgun controller. The presented project idea is intentionally kept do it yourself-friendly by using easily available components. Before we step into […]
Recently I came across a dirt-cheap knock sensor module labeled as Keyes KY-031 Knock/ Impact/Hit Sensor. The other day I bought a couple of those modules from an online store. It’s pretty small and easy […]
With a driveway alarm, you can be sure your property is protected from intruders. The primary reason to get a timely driveway alert is to detect when a vehicle or person enters or leaves your […]
The key purpose of a panic alarm (also called duress alarms, hold-up alarms, or panic buttons) is to allow a person under threat to quickly call for help in the event of an emergency. There’re […]
