SparkFun Piezo Vibration Sensor - Small Vertical Flex / Force Accessories & Supplies 28mm base diameter

28mm base diameter

Sturdy construction holds up to usual wear and tear

This is for the female housing

These can be used to isolate the switches to make for a bit easier decoding

4 Twisted Pairs with PE Divider

SparkFun Piezo Vibration Sensor - Small Vertical Flex / Force Accessories & Supplies 28mm base diameterThe Minisense 100 from Measurement Specialties is a low cost cantilever type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and tap inputs from a user. A small AC and large voltage (up to + 90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solder pins that