Thumb Joystick Hookup Guide
Note: Processing is a software that enables visual representation of data, among other things. If you've never dealt with Processing before, we recommend you also check out the Arduino to Processing tutorial. Follow the button below to go ahead and download and install Processing IDE v2.2.1. The following examples were intended for Processing IDE v2 so you may have issues getting it running on Processing IDE v3.
To install the Processing Library, you'll need to head over to the Processing-Arduino interface page.
There is a link to receive latest release after it says "Library for Processing v2.0 and v3.0" from its GitHub repository.
Library for Processing v2.0 and v3.0: latest release (Updated 7 Nov. 2016)
Click on the link to download the processing-arduino.zip and unzip to location on your computer. The process to install this library is similar to installing an Arduino library manually. Open a new window and locate the processing libraries folder. It should look similar to "...\Documents\Processing\libraries". Click on the unzipped folder labeled as processing-arduino. Then move the "arduino" folder into the Processing libraries folder.
We'll also need to upload the StandardFirmata.ino example code before using the Arduino and Thumb Joystick Shield with Processing. Luckily, this is already in the Arduino IDE. Open the Arduino IDE and head to File > Examples > Firmata > StandardFirmata.ino sketch, and upload it to the Arduino board. Remember to select Arduino/Genuino Uno as the board and COM port on your computer before uploading.