I've installed a sonoff mini and connected the signal wires to 3 3 way wall switches.
If I try to switch ON/OFF the sonoff using the app, there is no problem, it works like a charm always, but when I do it using the wall switches it just works "sometimes".
For what reasson can it be caused?
Is there any maximum length for the wires?
Should I activate any flag in the app?
je vais commander des condensateurs pour tester.
Mr John, I think it’s a coincidence. There is no difference between the two neutral terminals.
You can see the photo sent by Fran.
Thanks a lot Fran!! Good job!