Hi,
I have a few electric roller shutters which I would like to automate using these or similar zigbee modules. I just have one question: In my current setup, I have rocker type switches for up and down where they block each other so you can only press one direction or keep both open. They look similar to this:
What would happen if someone manually closes the shutter using this switch and forgets to open the switch again, so it stays in the down position? Then someone else or an automation triggers “open shutter” via zigbee. What would happen? Stay closed, open or both open+close which could harm the motor?
I doubt that on the photo is toggle switch, more likely momentary.
What happens on the relay module depends on the specific device. Usually there is hardware or software interlocking to prevent problems.
No I don’t and I never will.
I would not connect any “tuya” device to my house wiring.
Shelly 2PM Gen4 would probably be my choice. Sonoff MINI-ZBRBS if I’m on budget…
Thanks for the suggestions. What’s the issue with the tuya devices?
Do you know how the Shelly or Sonoff devices you mentioned would behave in my above scenario?
hmm, okay. I thought, at least these MOES for example are alright, as they are also widespread on amazon and generally get good reviews. I’ll keep it in mind!
When I asked how they behave I actually meant what they do I’m gonna send their support a message and ask
I can answer your question for the SONOFF MINI-ZBRBS as I just installed one, and I have the same switches as you. If you leave the switch for up or down “on” (like you normally would because you don’t want to wait for the shutter to open or close all the way), this is simply ignored later on. So if the shutter is down and the down switch is still “on” and you use HA to open the shutter, it will open and stay open. If then you want to lower it with the physical switch, you first have to switch the down switch “off” and then “on” and it will close.
Opening all the way and closing all the way works fine for me. What I couldn’t figure out is how to raise or lower it to a certain position (say 50%). Also, when lowering and stopping before it has closed all the way, I cannot press the up button in the dashboard (it is grayed out). I have to lower it all the way for the up botton to be enabled again. Also, the position is not reported in increments. It’s either 0 or 100.
So I found out how the manual calibration works (youtube video) and at first everything seemed fine, the current position was updated and I could once set it to a specified position. Then somehow things got screwed up to the point where the shutter wouldn’t move with the physical switches and recalibration didn’t work neither (it was about half way down). At some point I could raise the shutter with HA but the position value was totally wrong and kept changing when the up-putton in HA was pressed even though the shutter didn’t move (already at the top). I have the feeling that either the physical switches or the HA buttons mess up the state. Especially if I don’t raise or lower it all the way with HA.
This is frustrating to debug. Maybe I’ll give the Shellys a try.
