Generic RFP602 Resistive Thin Film Pressure Sensor 2KG

The RFP602 provides an analog resistance output that decreases as applied force increases. To read it with an Arduino, connect one sensor pin to an analog input pin (e.g., A0) and the other pin to ground, using a pull-down resistor (typically 10kΩ) between the signal pin and ground. The Arduino's ADC will read a voltage proportional to the force, which you can map to a force value in your code.

The RFP602 sensor is commonly rated for a maximum force of 2kg, as indicated in the product title. Some Generic descriptions may reference a 1kg range, but the correct specification for this variant is 2kg. Exceeding the maximum force can damage the thin-film element, so design your application within the 0-2kg range for reliable operation.

While the RFP602 can detect static force, it is not optimized for high-accuracy, continuous weight measurement like a precision load cell. It is best suited for detecting presence, touch, pressure changes, or relative force levels in applications like buttons, grips, or impact detection, where repeatability is more critical than absolute calibration.

The sensor's active area should be mounted against a flat, rigid surface. Use adhesive or a mechanical clamp around the inactive border, avoiding pressure on the central 5mm sensing zone. For protection, apply a thin, flexible overlay (like silicone or PET film) to shield the element from abrasion and moisture, while ensuring it doesn't restrict force transfer.