Hi,
is it possible that my arduino uno work with an WLAN shield to send the data to the Pi?
Benni
No. This requires code on the Arduino to drive the WLAN shield.
The Arduino code for BrewPi has not been updated for 2 years. It will never be updated either. We stopped Arduino support and will not invest any further time in the platform.
Adding WLAN support on Arduino yourself to the 2 year old code base will also be very hard, because one of the reasons we stopped with Arduino is that we couldn’t fit any more code inside the Arduino.