STM32L0 support

[Marcell Gerzsenyi]

Hello,
Is there any plans for porting this library to STM32L0 devices?
As I see, the lib uses the STM32DUINO lib as HAL which only supports the STM32F1 chip, but there is the Arduino_Core_STM32 which supports many more devices ( and supported by ST itself as I know). Maybe the developers consider to change the hal to Arduino_Core_STM32 for wider HW support.

Thanks, Marcell

[tekka]

@Marcell-Gerzsenyi I've added initial support for the Arduino STM32 core, but things move slowly with limited bandwith. Please feel free to test and report back:

https://github.com/tekka007/MySensors/tree/STM32duinoUpdate

[Marcell Gerzsenyi]

@tekka Thank you very much! I was able to build a simple sensor I will test it soon and report back.

[Marcell Gerzsenyi]

@tekka Thank you again :) It works! I made a custom board with STM32L073RZ and tested it with MySensor over my RS485 network. As a first step I made only a simple sensor with one digital input now I start to write a sophistacated raditaor valve controller with MySenesors library :)

[tekka]

@Marcell-Gerzsenyi Perfect, thanks for reporting back!

[rozpruwacz]

@tekka
Is there something I could help to spped up merging STM32duinoUpdate branch into master ?
At the moment I have couple of blue pill boards (STM32F103C8) and want to test RS485 network with MySensors.

And that I have one question, Is it possible to use two hardware serial ports - one for rs485 and another for debug prints ? What I tried is:

• using AltSoftSerial for rs485 but STM32 platform is not supported there
• using #define MY_RS485_HWSERIAL Serial1 and #define MY_DEBUGDEVICE Serial2 but Serial2 does not exist
• using SoftwareSerial but it seems that the code hangs somwhere and does not even get into setup() function (SoftwareSerial uses some timers so maybe they interferre with MySensors)