Often, simple robotics projects are powered from a small power bank consists of common dry cells (1.5Vx4=6V) or Lithium-Polymer cells (2S LiPo=7.2V). Ofcourse, the 5V required for the microcontroller ...

A lithium-ion battery tester seems like a simple project, at least electrically. But when you start thinking about the physical problem of dealing with a huge range of battery sizes, things get a ...

Is the battery empty, or is there something wrong with the device? That’s always a difficult question when your walkman or some other battery-powered device appears to be dead when you switch it on.

IslandDER™ brings whole-home isolation directly to the meter socket for easier installations, reduced labor costs, and faster Permission To Operate (PTO) approval—integrated with systems from ...

If something runs on batteries, you’ll find a battery meter somewhere on it. Your smartphone, your vape; even batteries themselves can tell you how close they are to dying. So why am I excited about ...

Isn’t it always the way? There’s a circuit right out of the textbooks, or even a chip designed to do exactly what you want — almost exactly. It’s 80% perfect for your application, and rather than ...