Template:PT3 JAVA LNX NETBEANS: Difference between revisions

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<p>First, make sure you have the following installed:</p>
<p>First, make sure you have the following installed:</p>


<p>● Phidgets Drivers for Linux (see Part 1 of this user guide)</p>
<p>● <span>[https://www.phidgets.com/docs/OS_-_Linux Phidgets Drivers for Linux]</span></p>


<p>● The <span>[http://www.oracle.com/technetwork/java/index.html Java Development Kit]</span> from Oracle</p>
<p>● The <span>[http://www.oracle.com/technetwork/java/index.html Java Development Kit]</span> from Oracle</p>


<p>● You will need a copy of <span>[https://www.phidgets.com/downloads/phidget22/libraries/any/Phidget22Java.zip phidget22.jar]</span></p>
<p>● You will need a copy of <span>[https://www.phidgets.com/downloads/phidget22/libraries/any/Phidget22Java.zip phidget22.jar]</span></p>
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<div class="phd-slide">
<h2>Setting UDev Rules</h2>
<p>
By default, Linux will not allow regular users to access physical hardware, as a security feature. This means that you must grant yourself root privileges via
sudo to run Phidgets code.
</p>
<p>
To avoid having to use sudo every time, you can set up a rules file to allow it automatically using the vendor code for Phidget USB devices. Create a text file
called <b>99-libphidget22.rules</b> containing the following line:
</p>
<div class="phd-command-line"><code>SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="06c2", ATTRS{idProduct}=="00[3-a][0-f]", MODE="666"</code></div>
<p>
Mode 666 means every user has permission to read and write to the specified devices. Next, move this file to <b>/etc/udev/rules.d</b>. Now you can run code that
uses Phidgets as a regular user without sudo.
</p>
</div>
</div>



Latest revision as of 21:22, 17 December 2024

Linux with NetBeans

Welcome to using Phidgets with Java! By using Java, you will have access to the complete Phidget22 API, including events.

NetBeans is an IDE used to write, compile, and run Java applications.

Requirements

First, make sure you have the following installed:

Phidgets Drivers for Linux

● The Java Development Kit from Oracle

● You will need a copy of phidget22.jar

Setting UDev Rules

By default, Linux will not allow regular users to access physical hardware, as a security feature. This means that you must grant yourself root privileges via sudo to run Phidgets code.

To avoid having to use sudo every time, you can set up a rules file to allow it automatically using the vendor code for Phidget USB devices. Create a text file called 99-libphidget22.rules containing the following line:

SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="06c2", ATTRS{idProduct}=="00[3-a][0-f]", MODE="666"

Mode 666 means every user has permission to read and write to the specified devices. Next, move this file to /etc/udev/rules.d. Now you can run code that uses Phidgets as a regular user without sudo.

Setting up a New Project

Whether you are running our examples or adding Phidget functionality to an existing project, you'll need to configure your development environment to properly link the Phidget Java library.

To start, open NetBeans and create a new project. Select Java Application then click Next:

Setting up a New Project

Give your project a name and finish creating the project:

Setting up a New Project

Next, add a reference to phidget22.jar by right-clicking on the libraries folder:

Setting up a New Project

Locate phidget22.jar and click OK.

The project now has access to Phidgets.

Finding Code Samples

To find the code sample to use for your Phidget, navigate to the Code Samples page and select your device from the drop-down menu.

Once you select your device, the code sample generator will give you a working code sample, and a selection of options to customize it to your needs.

Using the Code Samples

If it's unclear what any of the options do, click on the nearby '?' for more info.

Once you've made your selections, click the copy button and paste the code into your new project.

Be sure to change the name of the top class to match the name of the file in your project.

What's Next?

Now that you've set up Phidgets in your programming environment, you should read our guide on Phidget Programming Basics to learn the fundamentals of programming with Phidgets.

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