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todbot/dual_i2s_player.py

Last active July 26, 2023 09:26
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Demonstrate using two I2S stereo DACs at once on RP2040 / Raspberry Pi Pico in CircuitPython
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dual_i2s_player.py
# dual_i2s_player.py -- demonstrate using two I2S stereo DACs at once on RP2040 / Raspberry Pi Pico
# 19 May 2023 - @todbot / Tod Kurt
# video of this code: https://www.youtube.com/watch?v=CgqECxhqJEo
import time, board, audiocore, audiobusio
# qtpy rp2040 pins
# in this case, board.* names just match silkscreen, don't indicate functionality
lck1_pin, bck1_pin, dat1_pin = board.MISO, board.MOSI, board.SCK
lck2_pin, bck2_pin, dat2_pin = board.SCL, board.SDA, board.TX
audio1 = audiobusio.I2SOut(bit_clock=bck1_pin, word_select=lck1_pin, data=dat1_pin)
audio2 = audiobusio.I2SOut(bit_clock=bck2_pin, word_select=lck2_pin, data=dat2_pin)
# start both audio engines going, playing different waves
# could also (and should) use audiomixer.Mixer to give you more control
audio1.play( audiocore.WaveFile( open("amen_22k16b_160bpm.wav","rb") ), loop=True)
audio2.play( audiocore.WaveFile( open("dnb21580_22k16b_160bpm.wav","rb") ), loop=True)
while True:
print("hi")
time.sleep(1)
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