EEVBlog also talked about this in a mailbag episode: https://www.youtube.com/watch?v=rEZQvSgdA2k&t=1839s
And they also have different cable versions available: https://caberqu.com/
Here’s the one I use: https://treedix.com/products/treedix-usb-cable-tester-board-usb-cable-checker-data-wire-with-acrylic-case-charging-test-data-line-type-c-micro-type-a-type-b
The exposed pads are also fantastic to break out data lines for measurement when performing electronics repairs.
That’s awesome.
Have you ever seen it with a real case, not just the acrylic “cover”? I’d like to be able to hand it to someone and not worry about the guts. Yea, I could print something, but frankly I can’t be arsed, lol.
Mine didn’t come with a case, it’s a very simple circuit so not much concern of ESD causing a problem.
It basically just runs power through every pin on the cable to illuminate corresponding LEDs.