Desription

Through one potentiomenter and FSRs, I control the brightness and blinking of 2LEDs. I also find material, a soft plastic model, to control perssure for ESRs effectively. On processing, I tried to control digital ball's reflection.

Components

1LED, a ping-pong ball as a diffuser, a red soft plastic heart, FSRs, 1 petentiometer, 9wires, Arbuino Board, Bread Board

Arduino Codes

int pot1Pin = 0;   // select the input pin for the FSRs, Brightness
int pot2Pin = 1;   // select the input pin for the potentiometer1, Blinking
int pot1Val = 0;   // variable to store the value coming from pot 1
int pot2Val = 0;   // variable to store the value coming from pot 2
int redPin = 9;   //  the pin for the red LED
int greenPin = 10; // the pin for the green LED

void setup() {
   pinMode(redPin, OUTPUT);  // declare the led1Pin as an OUTPUT
   pinMode(greenPin, OUTPUT);  // declare the led2Pin as an OUTPUT
}
void loop() {
   pot1Val = analogRead(pot1Pin);   // read the value from pot 1, between 0 - 1024, for dimming
   pot2Val = analogRead(pot2Pin);   // read the value from pot 2, between 0 - 1024, for blinking
   analogWrite(redPin, pot1Val/4); // dim LED to value from pot1
   analogWrite(greenPin, pot1Val/4);
   delay(pot2Val);                  // stop the program for some time, meaning, LED is on for this time
   analogWrite(redPin, 0);         // dim LED to completely dark (zero)
   analogWrite(greenPin, 0);
   delay(pot2Val);                  // stop the program for some time, meaning, LED is OFF for this time
} 

Processing

import processing.serial.*;

String portname = "COM4";
Serial port;
String buf="";
int cr = 13;  // ASCII return   == 13
int lf = 10;  // ASCII linefeed == 10
int fsr = 0;

void setup() {
  size(300, 300, P3D);
  noStroke();
  colorMode(RGB, 1);
  fill(0.4);
  port = new Serial(this, portname, 9600);
}

void draw() {
  background(0);
  translate(width / 2, height / 2);
  // Set the specular color of lights that follow
  lightSpecular(3, 3, 3);
  directionalLight(0.8, 0.8, 0.8, 0, 0, -1);
  float s = fsr / float(width);
  specular(s, s, s);
  sphere(50);
}
// called whenever serial data arrives
void serialEvent(Serial p) {
  int c = port.read();
  if (c != lf && c != cr) {
    buf += char(c);
  }
  if (c == lf) {
    fsr = int(buf);
    println("fsr="+fsr);
    buf = "";
  }
}

Video

http://www.youtube.com/watch?v=-V8AQx_d-40