3. An FSR is a Force sensitive resistor that varies resistance as a function of force on the sensor. The graph relating force to resistance is shown below. Resistance (22) 100k 10k 1k- 100 Tower Pro SG92R Micro serve 1000 Force (g) A servo is a special motor that has 3 terminals. The Brown wire is ground, Red is +5V, and Yellow is a PWM input. See Below. The frequency of the PWM is not fixed, but usually is around 1KHz (Any frequency around 1Khz is ok). When the duty cycle of the PWM signal is 0, the position of the servo arm is seen in (0). When the duty cycle is 25%, the servo arm is at 90 degs, as seen in (1) The goal is to have the double ended servo arm parallel (0) to the servo when there is no pressure applied and perpendicular(1) when maximum pressure is applied to the FSR. (0) (1) a. Sketch a hardware schematic with required connections. b. Setup the analog voltage input (ADC) registers. (Any ADC Channel) c. Setup the PWM signal. d. It may be difficult to use the Resistance/Force curve to get exactly what you want. You may use trial-and-error to adjust as desired.