[AudioI] Audio Injector Isolated GPIO Pin Use

[Jonathan]

Hello All,

I did some investigation and it looks like one of the GPIO pins that is
utilized is GPIO17 to trigger the muting relay on the audio output on the
RCA breakout board.

For my application, I will only be utilizing the audio input, so
functionality of output muting isn't really needed. The issue is that I
already utilize GPIO17. I can easily unsolder the GPIO pin header on the
RCA breakout, but how can I free up GPIO17 in Raspbian then when I enable
the driver?

Also, are there any other GPIOs that might be utilized on the Audio
Injector Isolated? I utilize GPIO4, 17, 24, 27, and the console port in my
application.

Thank you.

Jonathan




On 9/23/21, Jonathan <emuman100 at gmail.com> wrote:

> Hello,

>

> Does the Audio Injector Isolated make use of any GPIO pins on the Pi

> other than the I2C and I2S lines? If so, which ones does it use?

>

> Also, can I simply solder a header to the unpopulated passthrough

> header and have direct access to the GPIO pins? I use a total of 4

> GPIO pins in my project.

>

> Thanks.

>

> Jonathan

>
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