Press button in breadboard(arduino) and drawing a shape

ncasodagar

Hello everyone!

I'm new to processing and arduino and I am trying to do something that sounds really simple, but I guess is not. (or maybe it is and I'm just not getting it...)

My goal is to have a breadboard with 12 buttons attached to an arduino, and when you press a button the a shape is drawn in processing. Each button will draw a different shape.

This is the code I tried to adapt from the button and led example but it doesn't work. Please help me! :D

import processing.serial.*; import cc.arduino.*;

Arduino arduino;

int btPin = 2;

Boolean buttonPressed=false;

void setup() {
  size(1200, 700);
  background(255);


  //println(Arduino.list());
  arduino = new Arduino(this, Arduino.list()[4], 57600);
  arduino.pinMode(btPin, Arduino.INPUT);

  int buttonPressed=arduino.digitalRead(btPin);
  print(buttonPressed);
}

void draw() {
  if (buttonPressed) {
    println("the button is pressed!"); 
    buttonPressed = true;
    fill(255);
    noStroke();
    rotate(random(360));
    rect(random(1200), random(700), random(300), 10);
  }
}