/diy/ - Do It Yourself

>>2549927
>Is this okay?

not okay.
you need to make a sound, not light an LED.
looking away from the test point to your LED will slow you down a lot.
and your grip may slip and cause a short circuit.

>>2549965
>ideally, it wouldn't be powered at all

if you can use the god-like power of tilt, you can use a mercury switch (or mercury-whetted reed switch or mercury-whetted reed relay.)
only a few degrees should be enough if you place it correctly.