USB Mug Warmer
How to build a USB Mug Warmer? It’s easy if you have a little skill and patience! This article will help you to build your own USB mug warmer using inexpensive components laying around your […]
Simple Crystal Tester
A budding electronics hobbyist often needs to pick crystals of right frequency for homebrew projects. To make that task a little more cheerful, I’m introducing this simple crystal tester circuit. It’s basically just a very […]
Arduino Sound Analyzer Primer
In this article I’ll show you how to capture sound signals on the Arduino and start some interesting experiments on it. Look for and gather a sound sensor module For the experiment initially you need […]
Electric Aroma Burner/Diffuser
Aroma burners/diffusers let the air around you deliver revitalizing and refreshing fragrance to your home/office interiors. This article guides you through the simple process of making your own electric aroma burner/diffuser. Gathering requisite components First […]
Generic 2A USB Car Charger – DIY
This time I’m going to show you how to build an inexpensive yet very useful generic 2A USB car charger for smartphones and tablets using off-the-shelf parts. What you can see here is a simplest […]
Simple Neon Glow Bulb Tester
Neon glow bulb is a nostalgic decorate lamp everybody seems to love. A small version is used still mainly as neon indicator light, also called pilot light, in electric/electronic instruments and appliances as a neon […]
Analog Multiplexer/Demultiplexer Primer
Assume that you’re in the middle of a microcontroller-based project with a big array of sensors and transducers ready and waiting to get their I/O allocation by the microcontroller, and sadly you found yourself there’s […]
Build Your Own NFC Keyring
Near Field Communication (NFC) is a unique technology for creative marketing and mobile payments. Most of the recent smart phones support NFC so you can find that there is more fun and practical stuff you […]
Poor man’s Door Video Security Camera
This article describes a basic idea that can be used to build your own simple video security systems such as a door video security camera. In these times you can buy astonishingly cheap Car Rear-View […]
ACS712 – An Introduction
Often a need arise to add a current sensor in your project, when you’re making an electric energy meter or a master/slave control switch for instance. Picking out the right theme for monitoring current consumption […]