[AudioI] Which Audio Injector for Low latency microphone input?

[audioinjector.net at yapsr.nl]

That sounds promising!

It also sounds not too difficult for newbies like me. However, the 
information on http://www.audioinjector.net/rpi-zero is very basic. It's 
not clear what parts I have to buy extra and what I have to do to make 
it work exactly.

On the top side of the ZeroPi I can see 2x20 through holes.  Do I need 
to solder the 2x20 headers to put on top of the Raspberry Pi mainboard? 
Or are the headers already soldered?

On the left side of the ZeroPi I can see 4x3 through holes. What are 
these for exactly?

On the right side of the ZeroPi I can see mic+,mic- and another 4x3 
through holes.  What are these for exactly?

Or is there a document with the schematics or more technical 
documentation on the Zero and the breakout boards already avaiable? 
Could you add a link to it to http://www.audioinjector.net/rpi-zero?

Thanks a million, also on behalf of your future buyers.

Jasper


On 08-01-2021 02:02, Matt wrote:
>
> Yes, that sort of electret microphone should work well with the Zero. 
> You will have to wire it correctly however.
>
> You will need to isolate the two connectors from the 4 line connector 
> which are the GND and microphone lines. The GND line will be common to 
> the headphones and the microphone.
>
> You can connect the common GND to the Zero's GND. Then you can connect 
> the microphone line to the Zero's microphone's + line. This should 
> make it work.
>
> Matt
>