Dear,
I need some advice about the choice of the technology.
Do you know what is the best and most reliable wired technology compatible with FHEM ?
(I need to monitor power consumption, temperature, et trigger electrical relay)
And if it possible I want to monitor the electrical dephasing ?
The other important thing is the length of the wire. it should be at least 50m. (if it's possible)
Any idea ?
kind regards,
Euca
1wire is cheap and works good. You can measure temperature and trigger relays the rest i don't know. But keep in mind that the polling of the 1wire bus is not very fast.
It is unclear what you mean by "best".
The most reliable wired system is of course TCP/IP - use FHEM to read another system via Ethernet.
If you do not want to put in 50 m of STP cable: 1-Wire. you need a cable with shield and 3-4 inner wires.
"Speed" is relative.
Also not clear is what you mean be electrical dephasing - do you mean the phase angle ?
LG
pah