Force Sensitive Resistor RP-C5ST-0.1G (0.5g-500g)

The RP-C5ST-0.1G is a resistive element. You typically connect it in a voltage divider circuit with a fixed pull-down resistor (e.g., 10kΩ) between its output and ground. The other terminal connects to your microcontroller's ADC input and a voltage supply (often 3.3V or 5V). The ADC reading correlates to the applied force as the sensor's resistance decreases under load.

Calibration requires applying known weights across its range (e.g., 0.5g, 10g, 100g, 500g) and recording the corresponding ADC output voltage. Plotting this data creates a transfer function. Note that FSRs have a non-linear response, typically logarithmic, so multi-point calibration or using a lookup table is recommended for accurate force mapping.

Yes, its sub-5ms response time makes it suitable for dynamic force tracking. However, for high-speed impact measurement, ensure your signal conditioning and ADC sampling rate are sufficiently fast. The flexible construction can withstand repeated actuation, but exceeding the 500g maximum force may damage the sensing element.

Use the integrated adhesive backing for flat surfaces. For curved or uneven surfaces, ensure full contact with the 5mm active area. To protect the sensitive polymer, consider adding a thin, flexible overlay (like silicone or PET) that distributes force evenly. Avoid Sharp Microelectronics objects and exposure to corrosive chemicals or excessive moisture.