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FSR402 Force Sensitive Resistor

  • FSR402 force-sensitive resistor for detecting pressure, force and touch through changes in electrical resistance.
  • Its resistance decreases as applied force increases, providing a simple analog method for force measurement.
  • Ideal for Arduino, ESP32, robotics, touch interfaces, pressure detection, electronic instruments and interactive projects.
Compatible Platforms: Arduino Raspberry Pi ESP 32

SKU: fsr402-force-sensing-resistor

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FSR402 Force Sensitive Resistor

The FSR402 is a force-sensitive resistor designed to detect changes in applied force or pressure. Its electrical resistance changes according to the amount of force applied to its sensing area, allowing a microcontroller to determine relative pressure or force using a simple voltage-divider circuit.

The sensor provides a variable analog response rather than a direct digital measurement. By connecting it to an analog input on an Arduino, ESP32 or other microcontroller, changes in resistance can be converted into a corresponding voltage and processed by software.

The FSR402 is useful for robotics, pressure-sensitive controls, interactive electronics, touch and force interfaces, musical instruments, user-input devices and projects where relative force detection is required. FSR sensors are generally better suited to detecting relative changes in force than providing highly accurate absolute force measurements.

Product Type Force-Sensitive Resistor
Model FSR402
Sensing Technology Force-sensitive resistive material
Sensing Area Approximately 12.7 mm diameter
Resistance Response Resistance decreases as applied force increases
Output Variable resistance / analog signal
Interface Analog; typically used with a voltage-divider circuit
Supply Voltage Does not require a dedicated supply; used as a variable resistor
Force Detection Relative force and pressure detection
Applications Robotics, pressure sensing, touch interfaces, interactive controls, musical instruments and electronic projects
Compatible Platforms Arduino, ESP32 and other microcontrollers with analog input
Sensor Type Flexible force-sensitive resistor