Totally agree.
It will be really cool if this chip deals with BT classic spp!
Is there any small clue to implement BT classic? or the APIs haven't opened yet?

Thanks,
Henry

I think reading some arduino-core code might be helpful.
if statement of __analogRead() in https://github.com/espressif/arduino-es ... -hal-adc.c
and __analogInit() could solve the problem.