Discover three creative DIY projects using everyday household items in this tutorial. Learn how to make a pen LED flashlight, ...

There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

Does Bluetooth drain your battery? All wireless technologies need power, but are the claims of high power consumption overblown? Despite advancements in Bluetooth technology, it’s still a pretty ...

Replacing a car battery was one of the first things I learned to do on a car. I’ve probably replaced a dozen batteries under various conditions—in my garage, outside in the snow, in a store parking ...