- git clone the pico sdk
- set environment var for path to the SDK
- cmake .
- make
the resulting files include a .uf2 put that onto the pico
PICO pin -- AUDIO pin
12 (GPIO 9) -- DIN
14 (GPIO 10) -- BCLK
15 (GPIO 11) -- WSEL
GND -- GND
3.3V -- VIN
PICO pin -- WIDI core pin
2 (GPIO 1) -- TX
3.3V -- ON
3.3V -- VI
GND -- GND
(optional debug LED; on if connected and not receiving)
WIDI core pin
LB -- neg LED (through 470 resistor)
pos LED -- V3