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 1MÎ. 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 board 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 devider 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 aren't incredibly accurate. Use them to sense if it's being squeezed, but you may not want to use it as a scale. This sensor can be easily interfaced with Microcontrollers, Boards, Raspberry Pi etc. using an Analog to Digital Converter (ADC). Specifications Force Sensitivity Range : < 100 g ~ 10 kg Pressure Sensitivity Range : < 1.5 psi ~150 psi Stand-Off Resistance 1MÎ Device Rise Time : 1 - 2 msec Life Time : > 10 million actuations

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