ArduinoPinTester.pde

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

boolean errorOccured = false;
int selectedPin = 0;
boolean[] digitalOut = new boolean[14];
int[] analogOut = new int[14];
boolean[] pwmSupported = {false, false, false, true, false, true, true, false, false, true, true, true, false, false};
boolean[] pwmOut = new boolean[14];

/* --- Properties start --- */

String serialPort = ""; //Arduino serial port.
String fontFile = "CourierNewPSMT-48.vlw"; //Font file name.
int analogSensitivity = 4; //Determines how fast analog bar moves.

/* --- Properties end --- */

void setup() {
	if (serialPort == "") {
		println("Error: \"serialPort\" is not specified.");
		errorOccured = true;
		return;
	}
	try {
		arduino = new Arduino(this, serialPort, 57600);
	}
	catch(Exception exception) {
		println("Error: An error occurred while connecting to Arduino.");
		errorOccured = true;
		return;
	}
	for(int i = 0; i < 14; i++) {
		digitalOut[i] = false;
		analogOut[i] = 0;
		pwmOut[i] = false;
	}
	size(945, 715);
	textFont(loadFont(fontFile));
}

void draw() {
	if(errorOccured) exit(); //Exits if any errors occured in setup();
	background(120);
	fill(0, 255, 0);
	stroke(0, 255, 0);
	square(20, selectedPin * 50 + 20, 20);
	for(int i = 0; i < 14; i++) {
		fill(255);
		textSize(30);
		text("D" + i, 60, i * 50 + 40);
		if(pwmSupported[i]) {
			if(pwmOut[i]) fill(255, 255, 0);
			else fill(255);
			textSize(20);
			text("PWM", 130, i * 50 + 40);
		}
		stroke(255);
		if(pwmOut[i]) {
			noFill();
			rect(200, i * 50 + 20, 120, 20);
			fill(255);
			rect(320 - 120 * ((float)analogOut[i] / 255), i * 50 + 20, 120 * ((float)analogOut[i] / 255), 20);
			arduino.analogWrite(i, analogOut[i]);
		}
		else {
			if(digitalOut[i]) fill(255);
			else noFill();
			square(300, i * 50 + 20, 20);
			arduino.pinMode(i, Arduino.OUTPUT);
			if(digitalOut[i]) arduino.digitalWrite(i, Arduino.HIGH);
			else arduino.digitalWrite(i, Arduino.LOW);
		}
	}
	text("Controls", 380, 580);
	textSize(20);
	text("Up Down: Select pins", 400, 610);
	text("Left Right: Increase/Decrease analog output", 400, 630);
	text("Z: Toggle digital output", 400, 650);
	text("X: Toggle analog/digital output", 400, 670);
	text("Esc: Exit", 400, 690);
}

void keyPressed() {
	if(keyCode == 40) {
		selectedPin++;
		if(selectedPin > 13) selectedPin = 0;
	}
	else if(keyCode == 38) {
		selectedPin--;
		if(selectedPin < 0) selectedPin = 13;
	}
	else if(keyCode == 37 && pwmOut[selectedPin]) {
		analogOut[selectedPin] += 4;
		if(analogOut[selectedPin] > 255) analogOut[selectedPin] = 255;
	}
	else if(keyCode == 39 && pwmOut[selectedPin]) {
		analogOut[selectedPin] -= 4;
		if(analogOut[selectedPin] < 0) analogOut[selectedPin] = 0;
	}
	else if(keyCode == 90 && !pwmOut[selectedPin]) digitalOut[selectedPin] = !digitalOut[selectedPin];
	else if(keyCode == 88 && pwmSupported[selectedPin]) pwmOut[selectedPin] = !pwmOut[selectedPin];
}