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.

Mass production is a wonderful thing. Prices fall, and hobby hackers get cheap gear. The mind then wanders towards what can be done with it. So it’s little wonder that someone like [Aaron Christophel] ...

Since our last article covering the Arduino v. Arduino case, we’ve received a couple of tips, done some more digging, and learned a lot more about what’s going on. We thought it was time to share the ...