Template:PT3 JAVA LNX ECLIPSE

Language - Java

Linux with Eclipse

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

Eclipse 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

To start, open Eclipse and create a new Java project. Give it a name and click Next:

Setting up a New Project

On the Libraries tab, click Add External JARs and add phidget22.jar to your project as an external jar:

Setting up a New Project

Create a new Class in your project:

Setting up a New Project

Name the class, and be sure to check the public static void main box.

Your 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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