Rough Noise Sketch

float inc = 0.008;
int density = 4;
float znoise = 0.0;

void setup() {
 size(720, 480);
 noStroke();
}

void draw() {
 float xnoise = 0.0;
 float ynoise = 0.0;
 for (int y = 0; y < width; y += density) {
   for (int x = 0; x < height; x += density) {
     float n = noise(xnoise, ynoise, znoise) * 200;
     //noise(x, y, z);
     if (mouseX>360) {
       fill(n+mouseY); }
       else {
     fill(n); }
     rect(y, x, density, density);
     xnoise += inc;
   }
   xnoise = 0;
   ynoise += inc;
 }
   znoise +=inc;
 }

Sparkfun Electronics

http://www.sparkfun.com

Light Into Sound!

Alex and Matthew perform their custom-built Phototheremins...

Arduino Sketch, Phototheremin

//Example 07: Send to the computer the values read from
//analogue input 0
//Make sure you click on "Serial Monitor"
//after you upload

#define SENSOR 0 // select the input pin for the
// sensor resistor
const int numReadings = 10;

//int val = 0; //variable to store the value coming from the sensor
int readings[numReadings]; // the readings from the analog input
int index = 0; // the index of the current reading
int total = 0; // the running total
int average = 0; // the average

int inputPin = SENSOR;


void setup() {

Serial.begin(9600); // open the serial port to send data back to the computer
// at 9600 bits per second
for (int thisReading = 0; thisReading < numReadings; thisReading++)
readings[thisReading] = 0;

}

void loop() {

// subtract the last reading:
total= total - readings[index];
// read from the sensor:
readings[index] = analogRead(inputPin);
// add the reading to the total:
total= total + readings[index];
// advance to the next position in the array:
index = index + 1;

// if we're at the end of the array...
if (index >= numReadings)
// ...wrap around to the beginning:
index = 0;

// calculate the average:
average = total / numReadings;
// send it to the computer (as ASCII digits)

//val = analogRead(SENSOR); //read the value from the sensor

Serial.println(average, DEC); //print the value to the serial port

//delay (10); // wait 10 ms between each send
}

Max Patch Part 2, for Phototheremin

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Max Waves: A Theremin?

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Another Control System: Max

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Dim by degrees...

 

import processing.serial.*;
 Serial port;
 
 void setup() {
 size(256, 150);
 
 println("Available serial ports:");
 println(Serial.list());
 
 // Uses the first port in this list (number 0).  Change this to
 // select the port corresponding to your Arduino board.  The last
 // parameter (e.g. 9600) is the speed of the communication.  It
 // has to correspond to the value passed to Serial.begin() in your
 // Arduino sketch.
 port = new Serial(this, Serial.list()[0], 9600);  
 
 // If you know the name of the port used by the Arduino board, you
 // can specify it directly like this.
 //port = new Serial(this, "COM1", 9600);
 }
 
 void draw() {
 // draw a gradient from black to white
 for (int i = 0; i < 256; i++) {
 stroke(i);
 line(i, 0, i, 150);
 }
 
 // write the current X-position of the mouse to the serial port as
 // a single byte
 port.write(mouseX);
 }

Dim by degrees...

//degrees of 0 to 255, LED attached to digital pin 9 and ground

const int ledPin = 9;      // the pin that the LED is attached to  void setup() {   // initialize the serial communication:   Serial.begin(9600);   // initialize the ledPin as an output:   pinMode(ledPin, OUTPUT); }  void loop() {   byte brightness;    // check if data has been sent from the computer:   if (Serial.available()) {     // read the most recent byte (which will be from 0 to 255):     brightness = Serial.read();     // set the brightness of the LED:     analogWrite(ledPin, brightness);   } }

Processing-Arduino 1: Mouse to LED

Processing-Arduino 1: Mouse to LED

import processing.serial.*;

Serial port; //create object from "serial" class

void setup() {

size(200, 200);

noStroke();

frameRate(10);

//open the port that the board is connected to and use the same speed (9600bps)

port = new Serial(this, Serial.list()[0], 9600);

}

void draw() {

background(255);

if (mouseOverRect() == true) {

fill(204);

port.write("H");

} else {

fill(0);

port.write("L");

}

rect(50, 50, 100, 100);

}

boolean mouseOverRect() {

return((mouseX >= 50) && (mouseX <= 150) && (mouseY >=50) && (mouseY <= 150));

}

Hello World: Blink an LED with Arduino

#define LED 13

void setup() {

pinMode(LED, OUTPUT);

}

void loop()

{

digitalWrite(LED, HIGH);

delay(1000);

digitalWrite(LED, LOW);

delay(100);

}