Force sensor FSR-400 - 2kg round 5mm - Pololu 1695

• External dimensions: 7.6 x 7.6 x 0.4 mm
• Range: from 0.2 N to 20 N
• Model: FSR-400
• Weight: 0.15 g

More details in thedocumentation.

The sensor reduces its resistance when the force put to the tip, increases. Due to this phenomenon, and the use of microcontroller with analog to digital converter, you can build a sensor that measures the force of pressure. The measurement can be displayed, for example, on the LCD display.

When the force doesn't work on sensor, the resistance is approximately 1MΩ. When putting on the finger with varying force, meter showed from 100 kΩto several hundredΩ.

Measurement and graphs of the dependence of voltages and resistance from the applied force

The product is compatible with Arduino

Online, you can find a tutorial along with a sample code for Arduino onthe bildr.

• round 5 mm (0.2")
• round 13 mm (0.5")
• square 38 mm (1.5")
• longitudinal (length of 61 cm)

• Manufacturer's website - Pololu #1695
• Documentation of the sensor
• User manual
• Example of a project with Arduino on bildr