If you have one arduino board (Me!) and want to keep a project together, tape all the wires together in the correct order for a kind of plug.
An homemade 12V polarity tester.
- An old pen
- 2x LED diodes (red and green)
- some wires (22 and 16awg)
- 2mm thick steel thread
- some hot glue
- steel hook.
That's actually genius.
Thanks. Very simple, but an useful thing to have in the drawer
Sorry if this has already been presented here.
But if not, this is my contribution.
Support for handling PCB.