Force Sensing Resistors (FSR) is a very thin, robust, polymer devices that decrease in resistance when pressure is increased on the surface of the sensor. It is used to sense pressure, weight, contacts and as a touch sensor. These sensors are simple to set up and great for sensing pressure.
This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will be larger than 1MΩ. This FSR can sense applied force anywhere in the range of 100g-10kg.
Force Sensing Resistors has similar properties to load cell or strain gauge devices. This resistance range is well suited to work directly with the internal pull-ups of many microcontrollers such as AVRs, PICs and arduino.
Two pins extend from the bottom of the sensor with 2.54mm pitch making it bread board friendly. There is a peel-and-stick rubber backing on the other side of the sensing area to mount the FSR.
Features & Dimensions
- Load capacity: 0-5kg.
- Sensing outer diameter: 9mm
- Sensing area inner diameter: 7.5mm
- Pin spacing: 2.54 mm
- Robots sensing and robot skin
- Gripper arm force sensing
- Touch Pads (i.e. VR Gloves, Joysticks)
- Position feedback
- Alarm Systems
- Aerospace applications (pressure force distribution measurements)
- Airbag Force
For force sensing resistor user guide, please click here
Force sensing resistor detailed tutorial on how to connect, test and arduino code, click here