Rigging potentiometers for colour change and speed in Processing and Firmata

Using Arduino Project Guidance
1

This is my first excursion into Arduino so needless to say I'm a little unsure as to how to go about rigging some of my potententiometers.

I'm working on a project where I am using my arduino as an input device for a processing sketch, where my dials control the speed of the on screen animation, the colour, and the rotation axis. I have an obs file in my sketch which I am trying to manipulate with the potentiometers.

I have manages to configure the speed function but the movement and colour changes are giving me some trouble. I don't really know how to go about it and and insight would be greatly appreciated.

I have a total of 4 potentiometers

I'll drag and drop my code below from Processing so anyone reading this can make sense of what is going on.

import processing.serial.*;

import cc.arduino.*;

Arduino arduino;
float x, y, z;
int A, B, C, D;
PShape coolshape;

float ry;


public void setup() {

  println(Arduino.list());


  arduino = new Arduino(this, Arduino.list()[0], 57600);

  for (int i = 0; i <= 13; i++)
    arduino.pinMode(i, Arduino.INPUT);

  size(1000, 1000, P3D);

  coolshape = loadShape("control_shape.obj");
}

public void draw() {
  background(0);
  lights();

  stroke(255);
  noFill();
  rectMode(CENTER);
  rect(width/2, height/2, 700, 700);



  A=arduino.analogRead(0);
  float a=map(A, 0, 1023, 0, 5);
  print("a:");
  println(a);

  B=arduino.analogRead(1);
  float b=map(B, 0, 1023, 0, 100);
  print("b:");
  println(b);
  fill(D, 255, 0, 5);

  C=arduino.analogRead(2);
  float c=map(C, 0, 1023, 0, 100);
  print("c:");
  println(c);


  D=arduino.analogRead(3);
  float d=map(C, 0, 1023, 0, 100);
  print("d:");
  println(d);


  translate(width/2, height/2+100, -200);
  scale(50.0, 50.0, 50.0);
  rotateZ(PI);
  rotateY(ry);
  shape(coolshape);

  ry += a;
}
2

but the movement and colour changes are giving me some trouble.

You didn't tell us what trouble you are having. Hard to help without knowing what you need help with.

3

Hi,
Please post all of the arduino code so we can see what you are sending.

Can you post a screen shot of the serial monitor when it is reading the arduino serial output?
Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?

We need to establish the you are sending the correct data.

Thanks.. Tom.. :slight_smile: