Make: Volume 91

PROJECTS: Autotune Kazoo

higher value means that it will give you a guess

more often, but it might not be as accurate.

3. Next we initialize the Bluetooth MIDI library

(line 204). We provide callback functions for

when a connected host sends us MIDI data

and tell it to start advertising and accepting

connections.

4. The rest of the setup function (lines 214–277)

is just boilerplate to initialize the I2S sound

streams: input from the microphone, and

output to the speaker. Beware that the pin

number may need to change if you wire things

differently!

The main loop (Figure

F

) does the following:

1. First, read a buffer (line 284) full of bytes from ...