Anything with a laser has undeniable hacker appeal, even if the laser’s task is as pedestrian as sending data over a fiber ...

Thinking of tackling electrical repairs but don’t know where to start? With just a little knowledge–and less than $100 worth ...

A digital multimeter is one of the most important tools for both professional mechanics and DIYers, not to mention people ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...

Geiger-mode avalanche photodiodes (GM-APDs) are highly sensitive light detectors, capable of detecting single photons.

A battery-free sticker reads vitamin C levels from fingertip sweat by turning any drinking cup into a smart health sensor.

Equal resistors R added in series with both emitters will develop voltages Vr = I1*R and I2*R that will be equal if the ...

Here is a close look at the common- versus differential-mode voltage and instrumentation amplifier (IA) topologies.

But, it turns out, a thermometer has been part of photonic chips all along.