@naveen said:
What is APM?
Arduino Pro Micro. Sorry, sometimes I spell it out, but we use the term a lot here.
Isn't the maximum one thing connected to either power or ground since there is only one pin for each?
No, there's not one to one association of that sort. For i/o pins you have to take some care not to try to drive too much output load, or let different inputs fight with each other, but for power and ground that's not the issue.
Well, you do have to keep the draw on the regulated power reasonable - often they are spec'd at about 150 ma (including the on board load for microcontroller, LED, powered outputs, etc), but that can vary.
I was thinking about doing something like you do, but was hoping there would be something more elegant. Are you not worried that the bare wires will touch other pins, etc.?
Yes, I only do that when I have a mounting situation where it's OK. And I might coat it with Liquid Electrical Tape in a few cases. AND - I too wouldn't mind learning a more elegant solution.