I delivered a new version that implements the pre-Filter usage indication in the device view. It also simplifies the installation of the Raspberry Pi by implementing a SSDP UPnP discovery app so that you don’t need anymore to enter an IP and port in the device setting.
I am interested to know if you have an EPA filter that is said <100% by the original app so that I could implement the EPA filter indicator properly. Not sure if this is your case already.
On the pi side, I also implemented the IP address detection so you don’t need anymore to pass it as an argument. Instead you pass the inet interface (wlan0 or eth0).