I just tried to record a simple .wav file via the built in microphone on my core2 with the M5Go Bottom2 using the blocky 'record to file' block. I am using UI flow 1.12.2 on my core2 and yes it does record and I can play the .wav file back but even at max volume of 6 the sound is very faint.

Yes Remco I have found the same issue with the microphone on the Core 2.
It does create an audio file to my SD card but it is 0 bites.
And yes this simple Blocky record function makes the Core 2 crash and restart.

Yes it seems the microphone on the M5Core2 with Bottom 2 still does not work.
I have tried basic record and replay using UIFlow Blocky and the Core2 crashes and restarts. Its frustrating that such basic functions do not work and aren't fixed in updates.

@philg1300
Thanks Phil, this was very helpfull for me too.

Hi Oscillator,
I tried loading your code and got the below error. Would you be able to advise a solution please?

In file included from c:\Users\User\OneDrive\Documents\Arduino\libraries\Mozzi-master/LowPassFilter.h:16:0,
from C:\Users\User\OneDrive\Documents\M5\oscpocketm\code\code.ino:22:
c:\Users\User\OneDrive\Documents\Arduino\libraries\Mozzi-master/ResonantFilter.h:71:6: error: multiple definition of 'enum filter_types'
enum filter_types { LOWPASS, BANDPASS, HIGHPASS, NOTCH };
^
In file included from C:\Users\User\OneDrive\Documents\M5\oscpocketm\code\code.ino:20:0:
c:\Users\User\OneDrive\Documents\Arduino\libraries\Mozzi-master/StateVariable.h:53:6: note: previous definition here
enum filter_types { LOWPASS, BANDPASS, HIGHPASS, NOTCH };
^

exit status 1

Compilation error: exit status 1

Hi, I have a Core 2 and have installed UiFlow v 1.10.7
When I power the unit on it goes straight to connecting to WiFi and there isn't time to access the Setup or App menus. The same when rebooting, the WiFi is accessed so quickly that you cannot access Setup or App menus.

Amazing! Thank you very much Pavelprosto.

@teastain
The Unit Cam and Timer Cam units are greyed out on UI Flow for the Core 2.

@ajb2k3
Thanks for the advice but I am hardly going to buy a shop brought SPO2 meter to check the M5 Heart Rate unit against.
Calibrating the unit?? No instructions were provided with the unit to do this.
I persisted testing it on myself many times and there is no way my heart rate fluctuates between 60 and 210.
Anyway M5Stack guys were helpful in trying to assist me too so that was also appreciated.