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# Basic Joystick Input Device
2018
(c) Diogo Cordeiro
This is the README file for Basic Joystick Input Device, a very simple and cool way of getting to know how a joystick works underneath the hood.
Further information about the Basic Joystick Input Device can be found in the project home page:
[https://www.diogo.site/projects/basic-joystick-input-device/](https://www.diogo.site/projects/basic-joystick-input-device/)
## Getting Started
This small project was developed with the only purpose in life of supporting a Technical Communication course presentation.
As so, and given the limited time available for the presentation, it is very simple to get it working.
### Prerequisites
* JVM (for the driver)
* Arduino Uno
* Joystick (duh.)
* Jumping Wires
## Authors
* **Diogo Cordeiro** - *Initial work* - Basic Joystick Input Device
## License
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public
License along with this program, in the file "COPYING". If not, see
<http://www.gnu.org/licenses/>.
IMPORTANT NOTE: The GNU Affero General Public License (AGPL) has
*different requirements* from the "regular" GPL. In particular, if
you make modifications to the Fun with Binary source code on your server,
you *MUST MAKE AVAILABLE* the modified version of the source code
to your users under the same license. This is a legal requirement
of using the software, and if you do not wish to share your
modifications, *YOU MAY NOT INSTALL BASIC JOYSTICK INPUT DEVICE*.
Additional library software has been made available. All of it is Free Software
and can be distributed under liberal terms, but those terms may differ in detail
from the AGPL's particulars. See each package's license file in their official
repository for additional terms.

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<!--
Basic Joystick Input Device - a very simple and cool way of getting to know how a joystick works underneath the hood.
Copyright (C) 2018, Diogo Cordeiro.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
-->
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=800" />
<title>Basic Joystick Input Device</title>
<meta name="description" content="A very simple and cool way of getting to know how a joystick works underneath the hood.">
<meta name="author" content="Diogo Cordeiro">
<!-- CSS -->
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body class="container">
<div class="images" id="row1">
</div>
<div class="images" id="row2">
</div>
<div class="images" id="row3">
</div>
<!-- Credits -->
<p class="text" id="footer">Made with <span style="color: #e25555;">&#9829;</span> by
<a href="https://www.diogo.site/">Diogo Cordeiro</a></p>
<!-- JS -->
<script src="script.js"></script>
</body>
</html>

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/*
* Basic Joystick Input Device - a very simple and cool way of getting to know how a joystick works underneath the hood.
* Copyright (C) 2018, Diogo Cordeiro.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category UI interaction
* @package Basic Joystick Input Device
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @copyright 2018 Diogo Cordeiro.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link https://www.diogo.site/projects/basic-joystick-input-device/
*/
// ON and OFF leds srcs
let LED_OFF = "data:image/png;base64,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";
let LED_ON = "data:image/png;base64,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";
let SQUARECSS = "border: solid darkred";
let current = "10";
//***********************************
/**
* Create leds
*/
for (let i = 1; i <= 3; ++i)
{
for (let j = 0; j < 3; ++j)
{
// Led holder
let figure = document.createElement("figure");
figure.setAttribute("class", "box");
// Led
let img = document.createElement("img");
img.src = LED_OFF;
img.setAttribute("value", "OFF");
img.id = "led" + i+j;
img.setAttribute("class", "led");
img.setAttribute("onclick", "switch_led("+i+j+")");
figure.appendChild(img);
document.getElementById("row"+i).appendChild(figure);
}
}
// Draw the first square
document.getElementById("led10").setAttribute("style", SQUARECSS);
/**
* Turn current answer bits accordingly
*/
function switch_led(led_id)
{
let image = document.getElementById("led"+led_id);
if (image.getAttribute("value") == "ON")
{
image.setAttribute("value", "OFF");
image.src = LED_OFF;
}
else
{
image.setAttribute("value", "ON");
image.src = LED_ON;
}
}
document.onkeydown = handleKey;
function handleKey(e) {
e = e || window.event;
if (e.keyCode == '38')
{ // up arrow
move_square("up");
}
else if (e.keyCode == '40')
{ // down arrow
move_square("down");
}
else if (e.keyCode == '37')
{ // left arrow
move_square("left");
}
else if (e.keyCode == '39')
{ // right arrow
move_square("right");
}
else if (e.keyCode == '13')
{ // Enter key
switch_led(current);
}
}
function move_square(to)
{
switch (to)
{
case "up":
if (current.charAt(0) == '1')
{
return;
}
to_id = String.fromCharCode(current.charCodeAt(0)-1)+current.charAt(1);
document.getElementById("led"+current).setAttribute("style", "");
document.getElementById("led"+to_id).setAttribute("style", SQUARECSS);
current = to_id;
break;
case "right":
if (current.charAt(1) == '2')
{
return;
}
to_id = current.charAt(0)+String.fromCharCode(current.charCodeAt(1)+1);
document.getElementById("led"+current).setAttribute("style", "");
document.getElementById("led"+to_id).setAttribute("style", SQUARECSS);
current = to_id;
break;
case "down":
if (current.charAt(0) == '3')
{
return;
}
to_id = String.fromCharCode(current.charCodeAt(0)+1)+current.charAt(1);
document.getElementById("led"+current).setAttribute("style", "");
document.getElementById("led"+to_id).setAttribute("style", SQUARECSS);
current = to_id;
break;
case "left":
if (current.charAt(1) == '0')
{
return;
}
to_id = current.charAt(0)+String.fromCharCode(current.charCodeAt(1)-1);
document.getElementById("led"+current).setAttribute("style", "");
document.getElementById("led"+to_id).setAttribute("style", SQUARECSS);
current = to_id;
break;
}
}

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/** theme: base
*
* @package Basic Joystick Input Device
* @author Diogo Cordeiro <up201705417@fc.up.pt>
* @copyright 2018 Diogo Cordeiro.
* @license http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported
* @link https://www.diogo.site/projects/basic-joystick-input-device/
*/
/* Resets css values */
/* http://meyerweb.com/eric/tools/css/reset/
v2.0 | 20110126
License: none (public domain)
*/
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video
{
margin: 0;
padding: 0;
border: 0;
font: inherit;
vertical-align: baseline
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section
{
display: block
}
body
{
line-height: 1
}
ol,ul
{
list-style: none
}
blockquote,q
{
quotes: none
}
blockquote:before, blockquote:after,
q:before, q:after
{
content: '';
content: none
}
table
{
border-collapse: collapse;
border-spacing: 0
}
/* Custom styling */
/* Sets font type to Code */
@font-face,.container,.text
{
font-family:code, sans-serif
}
/* Sets overall font, size, and blocks user highlighting/dragging */
.container
{
width: 100%;
cursor: default;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none
}
/* Center leds and text */
.images,.text
{
text-align: center
}
/* Cursor over led shall be a pointer */
.led:hover
{
cursor: pointer
}
/* single led container */
.box
{
display: inline-block
}
.box,.labels
{
position: relative
}
/* single led */
.led
{
margin-top: 1vh;
display: block;
z-index: 0;
opacity: 100;
width: 90%
}
/* Footer/Credits */
#footer
{
font-size: 12px;
margin-top: 3vw
}

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sudo apt install librxtx-java
========================
BUILD OUTPUT DESCRIPTION
========================
When you build an Java application project that has a main class, the IDE
automatically copies all of the JAR
files on the projects classpath to your projects dist/lib folder. The IDE
also adds each of the JAR files to the Class-Path element in the application
JAR files manifest file (MANIFEST.MF).
To run the project from the command line, go to the dist folder and
type the following:
java -jar "basicJoystickInputDeviceDriver.jar"
To distribute this project, zip up the dist folder (including the lib folder)
and distribute the ZIP file.
Notes:
* If two JAR files on the project classpath have the same name, only the first
JAR file is copied to the lib folder.
* Only JAR files are copied to the lib folder.
If the classpath contains other types of files or folders, these files (folders)
are not copied.
* If a library on the projects classpath also has a Class-Path element
specified in the manifest,the content of the Class-Path element has to be on
the projects runtime path.
* To set a main class in a standard Java project, right-click the project node
in the Projects window and choose Properties. Then click Run and enter the
class name in the Main Class field. Alternatively, you can manually type the
class name in the manifest Main-Class element.

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/*
* Basic Joystick Input Device - a very simple and cool way of getting to know how a joystick works underneath the hood.
* Copyright (C) 2018, Diogo Cordeiro.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Driver
* @package Basic Joystick Input Device
* @author Diogo Cordeiro <up201705417@fc.up.pt>
* @copyright 2018 Diogo Cordeiro.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link https://www.diogo.site/projects/basic-joystick-input-device/
*/
package basicJoystickInputDeviceDriver;
import java.awt.AWTException;
import java.awt.Robot;
import java.awt.event.KeyEvent;
/**
* serialPort.java
*
* Diogo Cordeiro
* up201705417@fc.up.pt
*
* Allows a Java Application to interface with an arduino board by means of
* the serial port.
*/
public class
Handle
{
public
Handle(String button)
{
try
{
Robot robot = new Robot();
// Interfacing with the app
switch (button)
{
case "up":
System.out.println("Para cima: " + button);
robot.keyPress(KeyEvent.VK_KP_UP);
robot.keyRelease(KeyEvent.VK_KP_UP);
break;
case "right":
System.out.println("Para a direita: " + button);
robot.keyPress(KeyEvent.VK_KP_RIGHT);
robot.keyRelease(KeyEvent.VK_KP_RIGHT);
break;
case "down":
System.out.println("Para baixo: " + button);
robot.keyPress(KeyEvent.VK_KP_DOWN);
robot.keyRelease(KeyEvent.VK_KP_DOWN);
break;
case "left":
System.out.println("Para a esquerda: " + button);
robot.keyPress(KeyEvent.VK_KP_LEFT);
robot.keyRelease(KeyEvent.VK_KP_LEFT);
break;
case "click":
System.out.println("Clique: " + button);
robot.keyPress(KeyEvent.VK_ENTER);
robot.keyRelease(KeyEvent.VK_ENTER);
break;
default:
System.out.println("Leitura do input analogico atual: " + button);
}
}
catch(AWTException e)
{
e.printStackTrace();
}
}
}

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/*
* Basic Joystick Input Device - a very simple and cool way of getting to know how a joystick works underneath the hood.
* Copyright (C) 2018, Diogo Cordeiro.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Driver
* @package Basic Joystick Input Device
* @author Diogo Cordeiro <up201705417@fc.up.pt>
* @copyright 2018 Diogo Cordeiro.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link https://www.diogo.site/projects/basic-joystick-input-device/
*/
/*****************************************************************************
* NOTICE *
* This file was originally written for a IR Controller project I did, thus *
* the different indent style from the remaining codebase *
*****************************************************************************/
package basicJoystickInputDeviceDriver;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
import java.io.IOException;
import java.util.Enumeration;
/**
* serialPort.java
*
* Diogo Cordeiro
* diogo@fc.up.pt
*
* Allows a Java Application to interface with an arduino board by means of
* the serial port.
*/
public class Main implements SerialPortEventListener
{
SerialPort serialPort;
// The port we're normally going to use
private static final String PORT_NAMES[] =
{
"/dev/ttyACM0", // Raspberry Pi
"/dev/ttyUSB0", // Linux
"COM3", // Windows
"/dev/tty.usbserial-A9007UX1", // Mac OS X
"/dev/cu.usbmodem1411",
"/dev/cu.usbmodem1451",
};
// A BufferedReader which will be fed by a InputStreamReader
// converting the bytes into characters
// making the displayed results codepage independent
private BufferedReader input;
// The output stream to the port
private OutputStream output;
// Milliseconds to block while waiting for port open
private static final int TIME_OUT = 2000;
// Default bits per second for COM port
private static final int DATA_RATE = 9600;
public void initialize()
{
System.setProperty("gnu.io.rxtx.SerialPorts", "/dev/ttyACM0");
CommPortIdentifier portId = null;
Enumeration portEnum = CommPortIdentifier.getPortIdentifiers();
// First, Find an instance of serial port as set in PORT_NAMES
while (portEnum.hasMoreElements())
{
CommPortIdentifier currPortId = (CommPortIdentifier) portEnum.nextElement();
for (String portName : PORT_NAMES)
{
if (currPortId.getName().equals(portName))
{
portId = currPortId;
break;
}
}
}
if (portId == null)
{
System.out.println("Could not find COM port.");
return;
}
try
{
// open serial port, and use class name for the appName
serialPort = (SerialPort) portId.open(this.getClass().getName(),
TIME_OUT);
// set port parameters
serialPort.setSerialPortParams(DATA_RATE, //Transfer rate of the serial port
SerialPort.DATABITS_8, //rate of 10 bits 8 (sending)
SerialPort.STOPBITS_1, //rate of 10 bits 1 (receiver)
SerialPort.PARITY_NONE); //receive and send data
// open the streams
input = new BufferedReader(new InputStreamReader(serialPort.getInputStream()));
output = serialPort.getOutputStream();
// add event listeners
serialPort.addEventListener(this);
serialPort.notifyOnDataAvailable(true);
}
catch (Exception e)
{
System.err.println(e.toString());
}
}
/**
* This should be called when you stop using the port.
* This will prevent port locking on platforms like Linux.
*/
public synchronized void close()
{
if (serialPort != null)
{
serialPort.removeEventListener();
serialPort.close();
}
}
/**
* Handle an event on the serial port. Read the data and print it.
*/
public synchronized void serialEvent(SerialPortEvent oEvent)
{
if (oEvent.getEventType() == SerialPortEvent.DATA_AVAILABLE)
{
try
{
String inputLine=null;
if (input.ready())
{
inputLine = input.readLine();
Handle handle = new Handle(inputLine);
}
}
catch (Exception e)
{
System.err.println(e.toString());
}
}
// Ignore all the other eventTypes, but you should consider the other ones
}
/**
* Sends data to the serial port.
* @param data - Value to be sent
*/
public void sendData(int data)
{
try
{
output.write(data); // writes value on the serial port to be sent
}
catch (IOException e)
{
System.err.println(e.toString());
}
}
public static void main(String[] args) throws Exception
{
Main main = new Main();
main.initialize();
Thread t=new Thread()
{
public void run()
{
// the following line will keep this app alive for
// 1000 seconds, waiting for events to occur and
// responding to them (printing incoming messages
// to console)
try {Thread.sleep(1000000);} catch (InterruptedException ie) {}
}
};
t.start();
System.out.println("Started");
}
}

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/*
* Basic Joystick Input Device - a very simple and cool way of getting to know how a joystick works underneath the hood.
* Copyright (C) 2018, Diogo Cordeiro.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Input Device
* @package Basic Joystick Input Device
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @copyright 2018 Diogo Cordeiro.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link https://www.diogo.site/projects/basic-joystick-input-device/
*/
// Arduino pin numbers
const int JoyStick_X = A0; // analog pin connected to X output
const int JoyStick_Y = A1; // analog pin connected to Y output
const int JoyStick_button = 6; // digital pin connected to switch output
void
setup()
{
pinMode(JoyStick_X, INPUT);
pinMode(JoyStick_Y, INPUT);
pinMode(JoyStick_button, INPUT_PULLUP);
Serial.begin(9600); // 9600 bps
}
void
loop()
{
int x = analogRead(JoyStick_X),
y = analogRead(JoyStick_Y),
button = digitalRead(JoyStick_button);
Serial.print(x, DEC);
Serial.print(",");
Serial.print(y, DEC);
Serial.print(",");
Serial.println(button);
if (y > 900)
Serial.println("up");
if (x < 30)
Serial.println("right");
if (y < 30)
Serial.println("down");
if (x > 900)
Serial.println("left");
if (button == 0)
Serial.println("click");
delay(100);
}