Tangible User Interfaces - Fall 2011

Description

Based on the toy of 2 boxers, the system responds to the proximity of the user, and increases the speed at which the 2 boxers move their arms. A system of 2 pulleys was created to move the arms of both boxers. If their movement is fast, a red LED turns on, otherwise its green.

Materials:

-DC Motor

-Photocell

-Red LED

-Green LED

-Rubber Bands

-Cardboard

-Sticks

CODE:

/*
 * The photocell controls the speed of the DC Motor. It also controls the Red and Green LEDs
*/

int photoCell = 0;   // select the input pin for the potentiometer
int motorPin = 9; // select the pin for the Motor
int val = 0;      // variable to store the value coming from the sensor
int ledPin1 = 11;
int ledPin2 = 10;

void setup() {
  Serial.begin(9600);
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
}
void loop() {
  val = analogRead(photoCell);    // read the value from the sensor, between 0 - 1024
 
  analogWrite(motorPin, val/4); // analogWrite can be between 0-255
  if (val < 512)
  {
    digitalWrite(ledPin1, HIGH);
  }
  else
  {
    digitalWrite(ledPin1, LOW);
     Serial.println(val);
  }
  if (val > 512)
  {
    digitalWrite(ledPin2, HIGH);
  }
  else
  {
    digitalWrite(ledPin2, LOW);
     Serial.println(val);
  }

}