There is no doubt that nowadays we are seeing more logic-level MOSFETs being used in microcontroller-based hobby electronics circuits and projects. So this week’s little post is about building a quick go/no-go tester for the […]
Mini Alarm Loop is a simple battery-powered security device to secure worthful goods outside of your home or office, such as bicycles, garden tools, furniture, etc. It sets off a sharp warning signal if severed […]
Inspired by some commercial automotive side marker lights, I recently built a general purpose 3-LED flashing marker light. It can be used as an attention light in and around your home, especially at night. So, […]
You may not know the name of one of the first independent semiconductor designers, but you have encountered Hans Camenzind’s designs countless times. Incredibly, he created the 555 timer chip alone, spending a year designing […]
As you know, a mercury switch can be used to detect any inclination with respect to gravity. For example, suppose your home security alarm wants to know when someone opens the lid of your cash […]
We’ve controlled electrical appliances through a number of wired and wireless control methods. That’s okay but how about controlling them with the alarm signal of a cheapo quartz table clock? This article demonstrates the simple […]
Looking for a simple way to make your own automatic LED lamp for your staircases or corridors? This simple self-timing LED lamp gives you a defined light output at the exact time you need it. […]
Most commercial model rocket launch controllers available to buy are either expensive or do not have desired features. After a lot of Googling, I found nothing that fits my little budget. Actually, I wanted a […]
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 […]
Little version of the audio induction loop receiver presented here can serve a variety of purposes. It is extremely useful for receiving audio from an audio induction loop transmitter or any other source that generates […]
