Arduino for STM32

I'm having the same problem that with version 2.8.0 no COM ports are shown. Rolling back to version 2.7.x fixes that, so this is a regression/bug as per version 2.8.0

But defined interrupt is not actually working. I have tried with other PINs also for interrupt but non of them are working.


Now your sketch should work:


#define R1 PD1 //ROW1
#define R2 PC6 //ROW2
#define R3 PC5 //ROW3
#define R4 PC3 //ROW4
#define C1 PB4 //COL1
#define C2 PC7 //COL2 ...

I removed the the digitalPinToInterrupt macro, that was causing trouble.
After reading this https://tenbaht.github.io/sduino/usage/interrupts/ documentation it seemed better to remove it.

So here is a revised example that should work on almost all pins (see code).


// Update August 2023 by Hans ...

Pin change interrupts support has been added to sduino .

A little workaround was still needed for me, as the latest sduino version 0.5.0 does not yet includes it.
I had to manually copy the files Winterrupts.h and Arduino.h from the sduino Github page and move that into my Arduino IDE overwriting ...

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 A0 ...

I checked the datasheet of the STMF103C8T6, but the only thing it tells me is that the temperature sensor is on ADC1_IN16.
I looked at the header files in the STM32 Arduino package and see that the ATEMP is defined depending on MCU as the last analog pin +1
So I redefined "ATEMP", which was defined ...

When I compile and upload the code (mentioned on the github page in the third post) to my blue pill board with STMF103C8T6 the VRef and the A0 sampling work ok, but I always get 266 or 267 degrees Celcius temperature. Even when i heat it up a little, it does not change.

This is what I get:
VRef(mv ...