Arduino Flex Sensor or bend sensor

(Last Updated On: July 17, 2019)

Flex Sensor

Description:

Arduino Flex Sensor– This Tutorial is about the Flex sensor. In this tutorial, we will be covering the extreme basics, because in the upcoming tutorials we will be using this flex sensor in a biomedical project for human posture monitoring. We will also be using the Flex Sensor for security purposes, for monitoring dents in sheet metal and so on, so make sure you subscribe to my channel and website right now, so that you never miss any of my upcoming tutorials. In this tutorial, we will cover

  • What is a flex sensor
  • How a Flex sensor works
  • How to use Flex Sensor with the Arduino
  • A basic program to control an led
  • How to select a proper resistor which is used with the flex sensor.

For the detailed explanation watch Video Tutorial “Click Here


The components and tools used in this project can be purchased from Amazon, the components Purchase links are given below:

Arduino Uno: https://amzn.to/2tVz1vu

Flex sensor with the best price: https://amzn.to/2qeCvqJ

Mega 2560: https://amzn.to/2ze1kdu

Super Starter kit for Beginners: https://amzn.to/2KJvmKG

Jumper Wires: https://amzn.to/2KMoVXs

Bread Board: https://amzn.to/2MS4q8X

12v Adaptor: https://amzn.to/2Ntr6h1

PCB plate: https://amzn.to/2IUwpCt

Variable Supply: https://amzn.to/2MT4Qfj

Digital Multimeter: https://amzn.to/2Nvft9i

Vero Board / strip board: https://amzn.to/2MTf9jD

Soldering iron kit:  “best”  You guys should definitely purchase this

https://amzn.to/2zfoNuJ

Solder wire: https://amzn.to/2ufUMWf

Wire Stripper: https://amzn.to/2KOqxfU

wirecutter: https://amzn.to/2ucIq14

PCB small portable drill machine: https://amzn.to/2Nu62XF 

Flex Sensor:

flex sensor which is also known as the bend sensor is a sensor that measures the amount of bending or deflection.

Flex Sensor

The  Bend Sensor is usually stuck to the surface whose bend is to be monitored, as the surface is bent the resistance of the Bend sensor varies. So we can say that the resistance of the  Bend Sensor is directly proportional to the amount of Bend.

The Flex sensors are also used for the precise angle measures, the flex sensor just like an ordinary resistor, the only difference is the in the construction, so we can call this Flex Sensor or Bend Sensor as the Flexible Potentiometer.

 

Flex Sensor

The Bend sensor as you can see in the Picture has two contacts or legs due to which it can be easily used with the Breadboard, but Personally, I recommend soldering jumper wires with these two contacts is the better option, as it can be then easily interfaced with the Arduino Uno or Mega.


It’s Working Principle as I said is just like the normal variable resistor or Potentiometer, with the only difference; that is the Bend sensor resistance changes with the bend while the variable resistor or potentiometer resistor, resistance changes as we rotate the knob. There are also some other types of the  Bend sensor, but the one you can see on the screen is the Conductive Ink-based Bend sensor.

For the Step by Step Interfacing of the Bend sensor Watch Video Tutorial “Click Here

Arduino Flex Sensor Programming:

For the step by step program explanation watch video Tutorial “Click Here

Watch Video Tutorial “Arduino Flex Sensor”:

 

Arduino Flex Sensor Related Projects:

Wireless Hand gesture controlled Robot with Flex Sensor using Arduino

 

Human Posture monitoring using Flex Sensor & Arduino “Arduino biomedical project”

 

 

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About the Author: Engr Fahad

My name is Shahzada Fahad and I am an Electrical Engineer. I have been doing Job in UAE as a site engineer in an Electrical Construction Company. Currently, I am running my own YouTube channel "Electronic Clinic", and managing this Website. My Hobbies are * Watching Movies * Music * Martial Arts * Photography * Travelling * Make Sketches and so on...

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