Spectra Symbol 12.7 mm Circular Force sensor

This is a force-sensitive resistor with a round, 0.5? diameter, sensing area. 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 1M?. This FSR can sense applied force anywhere in the range of 100g-10kg.

Two pins extend from the bottom of the sensor with 0.1? pitch making it bread friendly. There is a peel-and-stick rubber backing on the other side of the sensing area to mount the FSR. Just Connect a resistor to form a voltage divider and measure the voltage at the junction to find the force applied.

These sensors are simple to set up and great for sensing pressure, but they arent incredibly accurate. Use them to sense if its being squeezed, but you may not want to use it as a scale.

This sensor can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi, etc. using an Analog-Digital Converter (ADC).

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Also checkSquare Force-Sensitive Resistor – Original offered by Robocraze. It belongs to the FSR 400 series and specifically, it’s the model 406 FSR. This single-zone Force Sensing Resistor is optimized for human touch control in electronic devices such as automotive electronics, medical systems, and industrial and robotics applications

Applications:

• Robotics
• Detect motion or position
• Medical Devices
• Detect and qualify press
• Find the center of force
• Detect pressure
• Detect liquid blockage
• Target contact detection
• Pressure-sensitive touch user interface