Simple Homemade Flex Sensor

Introduction

This project shows you to make a homemade flex sensor and control servos with it. My homemade flex sensor.

Step 1

Lets make it. Take 13cm of 2 thick paper.

And also cut a 12 cm of 2 foil paper. Paste it together and paste to the other thick paper.

Step 2

Now take a 13cm paper. And rub it with a pencil:

Stick the two thick paper together.

REMEMBER: Keep the paper inside the two thick papers. Don't touch the foil papers with each other.

Step 3

Give one jumper wire to the foil paper and again to the other one.

Connect to the breadboard.

Code

#include <Servo.h> 
Servo servo1; 
const int flexpin = A0; 
void setup () 
{ 
 Serial.begin(115200); 
 servo1.attach(9); 
} 
void loop () 
{ 
 int flexposition; 
 int servoposition; 
 flexposition = analogRead(flexpin); 
 servoposition = map(flexposition, 1020, 1023, 0, 90); 
 servoposition = constrain(servoposition, 0, 90); 
 servo1.write(servoposition); 
 Serial.print("sensor: "); 
 Serial.print(flexposition); 
 Serial.print(" servo:"); 
 Serial.println(servoposition); 
 delay(1000); 
} 

Upload it. Enjoy.