fsr force sensing resistor

In electronics world, there's a special part called a force sensing resistor, FSR for short. FSRs are basically a not-particularly-precise touch sensor that can sense when they’re being pressed, which is kind of a sweet magical quality for a button. They are found in all kinds of cool gadgets — from robots to video game controllers. This time we are going to learn more about FSRs and how to use them.

A FSR is a type of sensor that can tell how hard you are pressing on it. When you push on an FSR, it decreases in resistance as the pressure increases. This shift can be quantified to ascertain the amount of force that is being applied. Isn’t that cool?

How FSR Force Sensing Resistors Work

Let’s dive in a little deeper on how FSRs work. Inside an FSR are small particles that slide closer or farther apart when force is applied. This motion alters the resistivity of the resistor to electricity. Through the measurement of the change we can know how much force the FSR is under.

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