Midget Tone Generator
Welcome STEM kids to old school electronics! The midget tone generator is as simple as useful. With just a couple of transistors and a few other parts, it is fairly easy to build the belittled […]
Flashing LED Float
Today we will see how to build a flashing float using a handful of commonly available inexpensive electronics components. This is the circuit diagram of the flashing LED float… List of components is shown below. […]
Variable Zener Diode DIY
A zener diode is often used as a simple voltage reference device. This post looks at how to create a variable (or adjustable) zener diode. Apparently, you can purchase the long-familiar programmable precision voltage reference […]
Glowing LED Eyes & Jawa Doll
Whether you are a novice or a seasoned crafter, crafting is a great way to get creative and pass the time. It is even better when you can incorporate some electronics. So in this post, […]
E-Reflector for Bicycles
As we know, a reflector is a small, often red, reflective disc on the back of a vehicle that reflects the headlights of other vehicles. That is fine, but this little post is about constructing […]
Flickering Torch Bulb
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 […]
Mini Alarm Loop v1
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 […]
Poorman’s Toilet Bowl/Seat Night-Light v1
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, […]
Barn Light Watcher
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 […]
Household 9V Battery Tester v1
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 […]