Arduino for STM32

Will check tomorrow if possible to reduce RAM


Unfortunately, hard to use all features you want.
As stated by ag123 and GonzoG the core have to support several series and so this requires some extra code.
I would recommend a bare metal code using only LL or registers access like this you should ...

Will check tomorrow if possible to reduce RAM

... to 'shrink' it significantly, you may need to resort to working a custom core / build.
And I think it could be simpler going the CMake route.

platformio would probably do quite similar too, but the idea is to work a custom core with that.

to stay on small mcus, it may help to select a somewhat ...

I was just really astonished, because the functionality would easily fit in an ATmega328, the typical "Arduino-chip". I just wanted the higher resolution, higher speed ADC and higher clock speed without external crystal of the STM32. The chip should go into a cheap, small series (first batch <1000 ...

With all options enabled stm32duino will need quite a lot of flash and RAM.
It's because it's made to be easy to use and not resource efficient.
You can disable unused peripherals and this will save some flash and ram:
https://github.com/stm32duino/Arduino_C ... figuration

well, use a 'bigger' chip e.g.
https://www.st.com/en/microcontrollers-microprocessors/stm32g030f6.html
actually, even this is pretty 'squeezy'.
a recommended chip / board is
https://github.com/WeActStudio/WeActStudio.MiniSTM32F4x1
this has well enough resources sram, flash to run comfortably and ...

... one of the few with an EEPROM). The L011D4 should be plenty for that.


My project is configured as follows. I am using Visual Studio Code with platformIO for all my MCU (STM32, AVR, ESP32) programming, usually always with the Arduino framework. platformIO does not have a board definition for a ...

Hey everyone, i wanted to tell you that a solution has been found: a person on the PlatformIO Forum found an error in my code: basically i was using the wrong command to assign I2C pins to the microcontroller GPIOs in the platformio.ini file.

This is the updated and working version:

; PlatformIO ...

... such MCUs and make a custom board with them for the first time; i was also interested in making it compatible with the arduino framework through PlatformIO as i already have some working pieces of code for arduino that i don't want to lose.

I started running some tests and it turned out that i was ...

... projects with Atmel and ESP8266/ESP32 for a while now. I've purchased a WeAct Studio module with an STM32F446RET6. I use Visual Studio Code with PlatformIO and the Arduino framework for programming. I've tried all the UART/USARTs and I've been able to read the signals on the serial monitor using a ...