- Lightweight, thin & flexible
- Can detect flexing or bending in one direction
- Similar to FSRs
- Can be used with an analog input on a microcontroller (with a pullup resistor)
This sensor can detect flexing or bending in one direction. They were popularized by being used in the Nintendo PowerGlove as a gaming interface.
These sensors are easy to use, they are basically resistors that change value based on how much they're flexed. If they're unflexed, the resistance is about ~10Ohm. When flexed all the way the resistance rises to ~20KOhm. They're pretty similar to FSRs so following Adafruit's tutorial will get you started. You can use an analog input on a microcontroller (with a pullup resistor) or a digital input with the use of a 0.1uF capacitor for RC timing.
The bottom part of the sensor (where the pins are crimped on) is very delicate so make sure to have strain relief - such as clamping or gluing that part so as not to rip out the contacts!