When building your own homebrew computer, everything is a challenge. Ultimately, that’s kind of the point. If you didn’t want to really get your hands dirty with the nuts and bolts of the thing, you ...

One part that I find myself using somewhat regularly in microcontroller-based experiments is the “USB power bank” that provides USB-standard 5-V DC output and offers some basic protection features.

I know how to solder, but I do not always want to solder, and I think there are a lot of folks like me. Even if the act itself can be done (and undone, and redone), the friction of hauling out the ...