Difference: I2SAndSound (2 vs. 3)

Revision 32021-07-07 - UliRaich

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META TOPICPARENT name="Exercises"

I2S and sound

Introduction

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SD n.c.  
Gain Gnd important: don't leave this pin floating!
Din D2: GPIO 21 audio data
Changed:
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<
BCLK D3: GPIO 17 bit clock
>
>
BCLK D0: GPIO 26 bit clock
 
LRC (LRCLK) D1: GPIO 22 left/right clock

Connecting the PCM5102:

pcm5102.png pcm5102back.png

PCM5102 pin pin on ESP32 CPU card signification
Changed:
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<
Vcc 3.3V  
>
>
Vcc 5V  
 
Gnd Gnd  
Changed:
<
<
BCK D3: GPIO 17 bit clock
>
>
BCK D0: GPIO 26 bit clock
 
Din D2: GPIO 21 audio data
Changed:
<
<
Lck (LRCLK) D1: GPIO 22 left/right clock
>
>
LRCLK D1: GPIO 22 left/right clock
 
FMT Gnd  
Changed:
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Xmt Vcc  
>
>
XSMT short-circuit with A3V3   3.3 V output from regulator LDO
 -- Uli Raich - 2021-01-24

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