Ever wonder if your USB C cable is USB2 or USB3? Do you have some charge-only cables hiding in a box just waiting for the right moment to spoil your project plans?!
Fear no more!

I’ve made a simple board to test most of the things!

@alvaro I love this! Does it cycle through the lights like an ethernet pair tester, or just light them all up at once?
@mwbrown it’s all at once. That would be the right way to do it, but it would make it more complex.