Q. In the last few days, I’ve tried to play some video clips on my computer only to receive errors of “COOD109B”and “COOD1197.” I have tried every way I know how, including using Microsoft and Google, ...

When [101 Things] didn’t want to copy Morse code, he decided to build a Pi Pico system to read it for him. On the face of it, this doesn’t seem particularly hard, until you look at the practical ...