Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing ...

Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

Forbes contributors publish independent expert analyses and insights. Steve Weisman writes about white-collar crime. While the crime may seem like something from another era, mail theft is big ...

Pickering Interfaces has announced a new family of high voltage programmable resistor modules in a compact single-slot PXI and PXIe form factor, model 40-230 (PXI) and 42-230 (PXIe), providing a ...

This is a Remote Control for an Evolution EV-1 Auto Pilot via NMEA2000 (SeaTalk-NG). It is based on the work of this project in GitHub: https://github.com/matztam ...

The test setup was powered with a lab power supply at 5.0 V, optionally at 3.7 V for rechargeable Li-ion batteries, or 12 V if the board supports it. The current was measured both with a UNI-T UT61E ...

With the StarTech.com USB-C Power Tester, you can easily look for charging problems in your setup. It’s a quick and easy way to ensure your devices are getting all the power they’re supposed to. I ...

We will refer to these article collections as “Breadboards,” “Tools,” and “Components” for short. We’re assuming that we are in possession of a full-size breadboard and associated wires (Components, ...

Over one million Americans have still not received their $1,400 stimulus checks from the federal government. It's not too late for those that qualify — ahead of today's April 15th tax deadline. The ...

Keeping too much money in your checking account means missing out on growth -- most accounts earn close to 0% interest. A good rule of thumb is to keep one to two months' worth of expenses in your ...

We may receive a commission on purchases made from links. There's nothing more annoying than checking the time on your wall clock and realizing the battery's already dead, or plopping down on your ...

The reality is that like almost every component under the hood, a car battery has a finite lifespan and will conk out on you eventually. Weather conditions, corrosion, electrical shorts, charging ...