Shelly DUO RGBW with OpenHAB 2.5 but also 3.0 is not supported.
It shows always unknown / configuration error.
Even GitHub documentation shows it should be supported.
I have tried
20210122-154226/v1.10.0-rc1@00eeaa9b
and
20210107-122133/1.9_GU10_RGBW@07531e29
Any idea? Thank you.
hm. maybe that should be moved to OH section?