Adafruit Learning System

The project shows how to setup a Web application to control RGB LED panels from Raspberry Pi. The Webapp uses an Adafruit RGB LED Matrix HAT and the rpi-rgb-led-matrix C++ library to drive the panels. The Web application is implemented using Java EE.

Press Your Button for Raspberry Pi

By Roberto Marquez

Press Your Button is a single or multi-player game written for Raspberry Pi. It uses a button, attached to a GPIO pin, to tell the computer when to stop the score board. Players take turns until one reaches the target score.

Piezo Ring Tones with Raspberry Pi

By Roberto Marquez

The Raspberry Pi's GPIO pins are used to play RTTTL sequences on a piezo buzzer. It is Web enabled and Java-powered. The Web app has built in RTTTL tones, as well as input controls for playing user provided RTTTL tones.

Web Enabled PIXEL on Raspberry Pi

By Roberto Marquez

Using built the built-in JVM, the Raspberry Pi hosts Web enabled controls for the PIXEL. The PIXEL is an LED matrix driven by a IOIO derivative. Much like the desktop and mobile applications for PIXEL, this version features scrolling text, still images, and GIF animations.

Getting Started

Adafruit Playground is a wonderful and safe place to share your interests with Adafruit's vibrant community of makers and doers. Have a cool project you are working on? Have a bit of code that you think others will find useful? Want to show off your electronics workbench? You have come to the right place.

The goal of Adafruit Playground is to make it as simple as possible to share your work. On the Adafruit Playground users can create Notes. A note is a single-page space where you can document your project using Adafruit's easy-to-use editor. Notes are like Guides on the Adafruit Learning System but are simpler and more concise. Guides are high-fidelity content curated and maintained by Adafuit. Notes are whatever you want them to be. Share a single picture of a project, or journal a complex project as you work on it. Have fun and be kind.

Click here to learn more about Adafruit Playground and how to get started.