This is the Flexible Sensor/ Flex Sensor. This sensor works on resistance across the sensor when the sensor bend the resistance of the sensor increase the same characteristics on potentiometer / variable resistors. This sensor works on 5v it read 1023 at 9v it read on 0. As you can see the diagram below it has hook a 220 Ohms resistor from the ground this is a voltage divider that divides the 5v between the sensor and the resistor and hook up to your microcontrollers/SBC. The flex sensor is mostly used on Angle displacement measurement, robotics, gaming and virtual motion, medical devices, computer and peripherals, musical instruments & physical therapy.

Required Complements

  • Arduino Microcontroller, NodeMCU, Teensy Board, TeensyDuino, ESP8266 12, 12E, ESP8266 NodeMCU, ESPDuino, ATMEGA328 16/12, ATMEGA32u4 16/8/ MHz, ESP8266, ATMEGA250 16 MHz, ATSAM3x8E, ATSAM21D, ATTINY85 16/8 MHz (Note: The Diagram below is using NANO. (please refer to the respective pin-outs)
  • Flex Sensor
  • 220 Ohms or 10k Resistor
  • Jumper Wire / DuPont Wire
  • Solderless Breadboard

For making your own flex sensor your need the following components below.

  • Heat Shrink Tube (Any Color)
  • Plastic Flexible Plate or Assitate
  • Copper Tape / Copper Foil
  • Static Bag / Static Plastic Bag Cutted into 6mm x 115mm

Wiring Diagram

Test code for flex sensor

Source Code with Servo

Downloads

Download flex sensor datasheet | PDF

Wiring Flex Sensor with Multiple Servos on Microcontroller
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