I2S with built-in ADC to capture stereo

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justsoft
Posts: 1
Joined: Sat Jun 18, 2022 11:50 am

I2S with built-in ADC to capture stereo

Postby justsoft » Sat Jun 18, 2022 2:48 pm

Hi, I would like to use I2S with built-in ADC to capture stereo audio. I have read the ESP-IDF, seems only the first built-in ADC can be used in I2S. Am I wrong?

Thank you in advance!
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sevenberyl
Posts: 3
Joined: Tue Jul 05, 2022 3:37 am

Re: I2S with built-in ADC to capture stereo

Postby sevenberyl » Thu Jul 07, 2022 3:30 am

使用两个GPIO用以区分左右声道？
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ESP-Kevin
Posts: 9
Joined: Fri Jul 01, 2022 6:10 am

Re: I2S with built-in ADC to capture stereo

Postby ESP-Kevin » Mon Jul 18, 2022 2:47 am

Yes, only the first ADC unit is available via the I2S driver, you can refer to the dedicate ADC driver for the full support of ADC continuous mode
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