Tangible User Interfaces - Fall 2011

DESCRIPTION

You finally got your beer but foam is stopping you. Luckily, automatic foam remover starts a little propeller mounted on

top of your glass. You can continue speaking with your friends while foam remover fights the foam

 

PARTS

Arudino

FSR

MOTOR

+ diods, transistors, resistors and wires

 

CODE

/*

 * preusure of beer in the glass starts the motor motor

 */

 

int fsrPin = 0;   // select the input pin for the fsr

int motorPin = 9; // select the pin for the Motor

int val = 0;      // variable to store the value coming from the sensor

int smoother = 0;   // adds delay between motor adjustments.

 

void setup() {

  Serial.begin(9600);

}

 

void loop() {

  val = analogRead(fsrPin);    // read the value from the sensor, between 0 - 1024

  if (smoother>0) {

    smoother--;

    return;

  }

  

  if (val > 250){

      analogWrite(motorPin, 500); // analogWrite can be between 0-

      smoother = 5000;

  }

  

  if (val < 100) {

      analogWrite(motorPin, 0); // analogWrite can be between 0-

      smoother = 5000;

  }

}