Category: Arduino/MAX

I followed the example ‘VirutalColorMixer’ under the communications tab in Arduino to begin this project. Here is a diagram I created of my design using the program Fritzing:

I only had one LDR module so I used a rotary potentiometer and a joystick for the rest of the analogue inputs required to control the red, green and blue fields.

After I hooked up my circuit, I uploaded the VirtualColorMixer to my Arduino board then opened up Max 7 and copied over the example but for the Max patcher. I then used the values from each of my analogue inputs to feed a certain oscillator a frequency value. The rest was as follows…

Here is what the end result ended up looking/sounding like – Link to Video

Not seen in the video above but the input values control the background colour of the Max patch (what the patch is originally meant to do).

Doing this little project helped me get an understanding of how to integrate the Arduino board into Max and also more experience in planning and constructing a circuit.

Excited to make more projects with this thing in the future!

I picked up my Arduino learning kit from Jaycar earlier today. I wasn’t in class for the intro on Arduino or anything so I have some catching up to do!

Reading the quick start booklet and following along with youtube videos were my best friend. Here are a couple of videos I watched:

Button LED video

Button LED video 2

Arduino Intro

I began with the very first example in the booklet which made the onboard LED blink on my UNO by loading up a simple example.

After that I tried to incorporate an external LED to turn on by a button press which I managed to do. A link to my Instagram post showing it. Loading up the ‘Button’ example in the Arduino IDE, then following a little diagram and some youtube videos to connect the board up correctly.

Barely scratched the surface of whats possible with this thing and looking forward to learning much more of what its capable of.

The coding was as follows…

/*
 Button

Turns on and off a light emitting diode(LED) connected to digital pin 13,
 when pressing a pushbutton attached to pin 2.

The circuit:
 - LED attached from pin 13 to ground
 - pushbutton attached to pin 2 from +5V
 - 10K resistor attached to pin 2 from ground

- Note: on most Arduinos there is already an LED on the board
 attached to pin 13.

created 2005
 by DojoDave <http://www.0j0.org>
 modified 30 Aug 2011
 by Tom Igoe

This example code is in the public domain.

http://www.arduino.cc/en/Tutorial/Button
*/

// constants won't change. They're used here to set pin numbers:
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin

// variables will change:
int buttonState = 0; // variable for reading the pushbutton status

void setup() {
 // initialize the LED pin as an output:
 pinMode(ledPin, OUTPUT);
 // initialize the pushbutton pin as an input:
 pinMode(buttonPin, INPUT);
}

void loop() {
 // read the state of the pushbutton value:
 buttonState = digitalRead(buttonPin);

// check if the pushbutton is pressed. If it is, the buttonState is HIGH:
 if (buttonState == HIGH) {
 // turn LED on:
 digitalWrite(ledPin, HIGH);
 } else {
 // turn LED off:
 digitalWrite(ledPin, LOW);
 }
}