I have an EC25 module installed on an EC200 EVB (v1.3). My question is how I can use codec modules with the evolution board? I read this question. but didn’t got any info.
The evaluation board has these pins: AUX_RX, AUX_TX, ADC0, ADC1.
Is there any way to use the micro USB connection for transferring audio over a voice call?
Also, Can I use the board without codec modules by changing the firmware to OpenQuec?
how about the another side.
I have never seen the EVB you tried. Where you get it?
There is no place to add the codeC for this EVB. And this EVB is not provided by Quectel.
You could use the UAC for audio.
Can you pls explain more about UAC? I want to use it in a Mac (Linux) device.
Please refer to the Quectel_LTE_Standard_UAC_Application_Note_V1.0.pdf.
You can play the audio for the remote and record what audio from the remote.
