Desription

Through FSRs and a DC motor, I made a simple structure of automatic toilet paper hanger. It seems to be useful for disabled peoples or children.

Component

A roll of toilet paper, a sponge-cylinder, a DC motor, FSRs, Arduino board, Bread board, wires, diodes

Arduino Codes

int potPin = 0;   // select the input pin for FSRs
int motorPin = 9; // select the pin for the Motor
int val = 0;      // variable to store the value coming from the sensor
void setup() {
  Serial.begin(9600);
}
void loop() {
  val = analogRead(potPin);    // read the value from the sensor, between 0 - 1024
  Serial.println(val);
  analogWrite(motorPin, val/4); // analogWrite can be between 0-255
}

Video

http://www.youtube.com/v/AqVG0eCnWe8