In this post, you will get acquainted with a pretty popular budget phototransistor PT334-6C which is in fact a high-speed and highly sensitive silicon NPN epitaxial planar phototransistor available in a standard 5mm LED package. […]
What is the simplest circuit you can think of for building a flickering torch bulb or torch bulb flasher/blinker? How many components do you need? This little circuit uses only a few common components, no […]
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 […]
After seeing an old LM324 chip-based thermostat kit in my attic, I decided it was time to whip up a quick refresher on the far-famed LM324 quad operational amplifier IC. I hope it can be […]
Adding something beaming will make your kid’s toilet more attractive. So, in this little post, you will see an automatic toilet bowl/seat night-light project to decorate your kid’s toilet. If you follow this minimalistic idea, […]
This post shares the design idea of a simple and cheap door status display panel with tristate indicators. The tristate visual indication features three independent modes viz. steady red (busy indicator), steady green (free indicator), […]
If you forget to switch off the light after leaving a not often used barn, there is a strong likeliness that it might remain lit for a prolonged period of time! Luckily, it is not […]
The Household 9V Battery Tester presented here is not very accurate and is probably better as an estimating tool than a precise battery tester. I still highly recommend building this little project as it is […]
The Chirping Cricket presented here creates electronic cricket chirping sounds that can be used for recreational purposes or to simulate warm summer nights. It is actually a continuation of a previously published similar do-it-yourself fun […]
