Arduino for STM32

Thank you very much for pointing me to use RogerClarks Library instead - DLO138 compiled now without errors.

Dear Community,
I am trying to compile the DLO138 (https://github.com/ardyesp/DLO-138) by checkout the files using SVN and renaming the trunk folder into “DLO-138” in a first step followed by doing as described here https://programmersought.com/article/25374132388/

After setting up the suggested ...