Hi, my setup is:
- nRF52 DK PCA1040 v1.0.1;
- Adafruit MAX9814 electret microphone amplifier;
My project concerns about:
- Sampling audio from the board with SAADC. A starting point could be, for example, 1s audio record every 15 seconds with 4kHz as sampling rate;
- Perform the FFT of the data sampled;
- Send the result by Bluetooth to Raspberry Pi in the easier way.
Now I am working at point 1 and I only built some SAADC example:
- SAADC Example from SDK13;
- The example form: devzone.nordicsemi.com/.../;
- The examples from: github.com/.../nRF52-ADC-examples;
I need to know which one is the best to modify and some tips to follow to reach our goal. Up to now I spent a lot of time to setup the environment, build and fix the examples and makefiles and run them. It would be really good to have some advice and a working trail to follow.
About points 2 and 3 we need only some suggestions on how to perform them in the best and more efficient way without wasting time in a lot of attempts.
Thanks
Best Regards