McGyver switch

A project log for Non-tech snail mail notifier

A legacy mail notifier made from a candle lamp and other things.

AltairishAltairish 08/09/2020 at 20:540 Comments

After some rummaging about in the dark corners of the house, and yet more experimenting, I arrived at the following design:

So a cotterpin slides in some kind of plastic tube, and  when the head of the cotter pin touches the washer, the ground and RST of the Wemos D1 Mini will be shorted, hence waking it up.