Moles are a real pest.

[Turnip]

Hi folks,

Realise Moles don't normally feature on a site concerning electronics but.

Have tried sort 'em with mole traps but they smell me coming. Thought maybe a Mole sensor, where ground heave might give an indication, so's I can go meet them face-to face. Have thought of several options using a lever with a magnet in a coil, slotted discs with an opto-thingy, Hall effect chip with a wobbly magnetic disc, or even a micro switch as the basic option.

Realise some folks try sort them with 'Mini-Windmills' but moles aren't daft - Chris.