User Manual

You must drag/copy this onto your CIRCUITPY disk drive, it's a big file so it will take a minute to copy over

Import Libraries

We start by importing the libraries that we need to make audio output import audioio Then we import board , our

standardhardware library.

Create wave file and audio output

Next we set the name of the file we want to open, which is a wave file wavfile = "howto.wav" and then open the file

as a readable binary and store the file object in f which is what we use to actually read audio from: f = open(wavfile,

"rb")

Now we will ask the audio playback system to load the wave data from the file wav = audioio.WaveFile(f) and finally

request that the audio is played through the A0 analog output pin a = audioio.AudioOut(board.A0)

The audio file is now locked-and-loaded, and can be played at any time with a.play(wav)

Audio playback occurs in the background, using "DMA" (direct memory access) so you can control servos, motors, read

sensors, whatever you like, while the DMA is happening. Since it happens asynchronously, you may want to figure out

when its done playing. You can do that by checking the value of a.playing if it's True then its still processing audio, it

will return False when complete.

Interactive Audio

OK just playing an audio file is one thing, but maybe you want to have some interactivity, such as waiting for the person

to touch something or press a button? Here's an example of using a time-delay and then pausing until something

occurs:

https://learn.adafruit.com/adafruit-crickit-creative-robotic-interactive-

construction-kit

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