Commands not being registered all the time

[mflage]

Hi!

I have an issue with my Flexit Roomie Dual where the commands are not registered all the time. I see that this communication is UDP-based, so I'm wondering if that is the reason for this. I can issue the command: .set_airflow(1), but nothing registers on the fan itself. If I then rerun the command, then it may work the next time.

Are there no acknowledgements in the protocol? Everything is based on UDP?

[aglehmann]

Hi, the protocol used by these fans are UDP, which by nature means there is not acknowledgement of a successful transmission as you would have found in other protocols like TCP. There is however a form of acknowledgement in the implementation of the "API" / controller interface who will return a byte array representation of the current settings on successful changes to any settings. I have not implemented any sort of error handling in this library (which could have been done). To be honest I never really saw the need to do so as this has worked flawlessly in my setup. You could try to pull the source code and change the static timeout value I have set to 15 seconds to see if that helps. That said, 15 seconds should be more than enough time so i have a suspicion that your problem is related poor wifi connectivity or some other network error. I'm guessing that the manufacturer of these fans didn't invest much in a decent wifi module, so you could try to improve the wifi coverage in the location of fan (move router / AP).