I have been unable to find out how to get sound level reading from the built in mic, it seems to only have recognize really load claps.
I did manage to connect an external mic to 1 of the ollo ports and use the ADC to read it although it needed a voltage splitter because because the power supply of the ollo is 5v but the ADC input is 3.3v. see my video here https://youtu.be/NjI_BYqcQ8Y
I would much rather be able to use the built in mic rather than having to build and add extra external stuff.
Is the a way to be able to read the internal MIC ???