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To make this I ordered the Color Display for the Teensy 3.1 and then ordered the Purple Test Board suggested with that module. I put them together with a Teensy 3.1 and for less than $20 you have a full graphics display and 256K Flash 64K RAM high capability embedded processor.

Next I bought a Teensy 3.1 and the associated audio module from pjrc:
Teensy 3.1 processor
Audio Module

Some pins and connectors are required to make these into a stack:

I then installed and used the audio library to test the module from: https://github.com/PaulStoffregen/Audio

There is a useful forum on this audio at: http://forum.pjrc.com/threads/24793-Audio-Library?highlight=audio

I am able to generate audio and play it to audio headphones. The library has a set of primitives that drive the module. In the releases there is a copy of my test code and the associated library.

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