Arduino for STM32

Thanks for checking :-)

And now it works perfect and now I also get different results between genuine and counterfeit

When I test my bluepill boards with genuine STM32F103C8 chips, manufactured by STMicro I get these results:

VRef(mv)= 3294 Temp(°C)= 32 A0(mv)= 317
VRef(mv)= 3296 Temp(°C)= 32 ...