I bought the first Shelly UNI the other day. I tested it with 4x DS18B20 temperature sensors. It works very well !
A pleasant surprise, Shelly!
Probably a firmware update allows this new thing!
Anyway, tomorrow I'll try with 5-6 sensors ... 
Thank you, Shelly.
How did it end up ??? 
With Tasmota up to 8 sensors are possible.
Tested it with latest firmware and it currently supports 5 DS18B20 sensors. ( DS18b20 emulator via arduino nano )
I have 2 Uni's. I tested both of them with 3 identical DS18B20 sensors.
I see only 2 sensors on each uni.
Are there any settings you have to make?
What am I doing wrong ?
