While we wouldn’t want to document a computer motherboard with ASCII schematics, it’s great for a quick-and-dirty circuit diagrams. Not exactly schematics, but [Duckman] has some Arduino ...

In general, the cost of electronic components and the tools used to fiddle with them ... need to verify everything matches the provided circuit diagrams as some vendors might have fiddled with ...

At last, some 'spare' time this weekend, and I learned two things about SCR dc motor control: Permanent magnet dc motors need ...