A fun sensor that lets you use force in your next project. Squeezing or applying pressure to the pad causes the resistance across the sensor to change. Using a simple voltage dividing circuit (one extra resistor) and one analog input pin you can make some really neat projects.
A simple demonstration:
Sense from 0 g - 10 kg of force
Simple to use (requires only one resistor and one analog input pin)
10k ohm voltage dividing resistor included
Best used when relative pressure sensing is required (not very accurate or repeatable)... but fun.