Microphone input Sony Spresense
For a project I need to localize a sound with the help of 4 microphone using the Sony Spresense board with an extension board. Unfortunately there isn't much support available for this board and I have been struggling ever since.
The localisation isn't a problem. I already know to do it (calculating the delay and by knowing the distance between the microphones and the speedof sound). The only problem is that I don't know how to read the pins from it. I'm trying it with tho microphones connected to channel A but don't know how to read if it's registering something or not, aka showing 1's and zero's? I would just like to visualize the amplitudes of the sound captured by the microphones but I just can't figure it out.
Thanks for helping me out!
I have used code similar to Step 5 here.
See previous steps as to how to connect a mic, aka, you need a bias resistor.
I'm sorry that you have felt a lack of support for the board.
We are working on improving our documentation so that we have even more examples to help out our users.
The code @DevMarcial mentioned is a good place to start I think.
Are you still struggling with this issue?
Let me know more information about the project so I can try to help out.
Maybe diagrams showing the microphone connections, what code you are trying to run and what is your result.