The first radio transmitters of the early 1900s were known as spark-gap transmitters. Spark-gap transmitters were broadly used on board ships where they provided the first means of communication to shore-based stations. As the name […]
I still believed electronics hobby can be promoted through the application of nostalgic components and circuits. This is a meek try to inspire someone learning and experimenting with basic electronics circuits, or to wake up […]
There are different types of cheap Chinese dc-dc buck converter modules. The most popular module still widely available is one with the LM2596S adjustable regulator, it’s a pretty old design, though. You can buy this […]
A while back I made a mighty aquarium cooler fan which initially was going to have an Arduino microcontroller to control the automatic cooling system but I moved to a Digispak board when I found […]
Everyone knows about the anti-sleep alarms that can keep us awake while we’re driving. There are two types of anti-sleep alarms – the first (and costly) type of alarm is built right into the vehicle […]
As a beginner, Arduino microcontroller is probably your best bet. So, this time get ready to learn how to build Arduino based infrared (IR) remote control projects at ease! Assume that you’re in the process […]
How to build a cheap and cheerful musical doorbell using a few electronics parts laying around? I recently planned to try one idea, and this week I had the time for that. Now, I would […]
A cheerful idea to fragrance your room without burning is to use an electric/electronic fragrance dispenser. So simply build the automatic fragrance dispenser presented here and place scented crystal rocks/fragranced crystals in the chest and […]
The common mains power resumption alarm will activate an internal buzzer in the event of a mains power resumption after a power cut or power interruption. Such a portable alarm can be used in and […]
Are you ready to go back into the old school electronics again? If so, be prepared to forget about microcontrollers for a few moments! This time I’d like to share my random thoughts on certain […]
