Description

The FSR402 is a long-tail force sensitive resistor that varies its resistance according to the pressure applied on the sensing area. As force increases, resistance decreases—ideal for measuring touch, pressure, and basic weight in Arduino, ESP8266/ESP32, and robotics projects.

⚙️ Specifications

• Sensor Type: FSR (Force Sensitive Resistor)

• Sensing Area: Round pad with long tail

• Force Range: ~100g to 10kg (approx.)

• Resistance:

  • No pressure: >1MΩ

  • With pressure: decreases proportionally

• Thickness: Very thin and flexible film

• Fast response time

🔌 Connection

Used in a voltage divider circuit and read through an analog pin on the microcontroller.

💡 Key Features

• Detects touch, pressure, and weight

• Long flexible tail for easy mounting

• Lightweight and low profile

• Simple analog interfacing

• Reliable for repeated use