Force sensor FSR-406 - 2kg square 38mm - Pololu 1645

The sensor reduces its resistancewhen the force applied to the round of 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. The measurement can be displayed, for example, onthe LCD display.

In the absence of the force affecting on sensor, the resistance is about 1MΩ. Position of 20-gram subject led to lower resistance up to 50kΩ. During an intense sensor's button pressing, device showed 200Ω.

Measurement system and graphs of the voltage's and resistance's dependency from the applied force.

The product is compatible with Arduino

Online, you can find a tutorial along with an example of code for Arduino onthe bildr website.

We also have other sensors:

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

• External dimensions: 43,7 x 43,7 x 0.5 mm
• Model: FSR-406
• Range: from 0.2 N to 20 N
• Weight: 1.2 g

More details in thedocumentation.

• Manufacturer's website - Pololu #1645
• Documentation of the sensor
• User manual
• Example of a project with Arduino in bildr service