Thanks for this hopeful reply!
I will be following up with some specific problems regarding the Pduino / Firmata I encountered.
To put it short it seems to me that things works much better with the older Firmata v2.1 than the newer ones.
Among some problems were problems to setup I/O digital pins from within Pd-patch.
But as said, I will return with some specifics within a week or two.
The Pduino version you did Roman, with less dependencies, was that released the ordinary ways - and might it even be searchable through Deken? If so... what to look for?
All the best,
Björn Eriksson