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Pinout of ultra 2 soundcard

Posted: Sun Dec 09, 2018 2:47 am
by mario-1024
Hello everybody,

I would like to add the sound card to a project with limited space and wonder which pins of the raspberry connector it actually uses so that I do not have to wire all 40 pins. Is there a documentation that I did not find yet which describes the connection to the raspberry pi?

Many thanks,

Mario

Re: Pinout of ultra 2 soundcard

Posted: Fri Jan 18, 2019 7:15 am
by Lomax
I was looking for this information as well - finally found it on the Kickstarter campaign's FAQ page:
The shared pins are :
5v power : 2, 4
I2C (shared) : 3, 5
GND : 6, 9, 14, 17, 20, 25, 30, 34, 39
3.3v power : 1, 17

The reserved pins are :
I2S : 12, 35, 38, 40
Reset : 29