Good shock sensor for a "slap" switch?

[espruino-discuss3]

Posted at 2015-10-27 by Rek

I have been tasked to come up with a novelty light which will switch on or off when the housing is slapped.

I will need a fairly sensitive shock/vibration sensor to do the job, can anyone suggest a component that will do the job and is compatible with the espruino?

[gfwilliams]

Posted at 2015-10-27 by @gfwilliams

Try this one: http://www.espruino.com/Vibration

They come in different types - the SW18010P is pretty sensitive.

It's dead simple, but it works well. The great thing is that because it's mechanical, it doesn't draw any power at all. Espruino can stay in low power sleep until there's movement.