Some zigbee devices (Sonoff ZB Mini and possibly Tuya) read input from a switch and set the state of a relay automatically, i.e. the switch and relay are coupled on the device. They also allow the relay state to be read and controlled remotely.
When connected to a smart lightbulb these turn off power to the bulb when switched, meaning the bulb goes offline and its setting can’t be changed directly. This blueprint decouples the switch and relay. The relay output is controlled by a toggle/input_boolean helper, and the output can be directly routed to the smart lightbulb.
The bulb remains powered even when the physical switch is toggled
The bulb can be isolated using a software switch in HA
The switch can still control the output of the bulb
If the automation is disabled the switch reverts to directly controlling power to the bulb.
Due to the delay of going through an automation the lights flicker when the physical switch is toggled.
blueprint:
name: Decouple Sonoff ZBMini
description: v1.0.0 Separate the switch input and the relay output of a Sonoff zbMini device.
domain: automation
author: Stephen Turner
input:
zbMini:
name: ZBMini device
description: The device to be decoupled
selector:
entity:
filter:
- domain: switch
isolator:
name: Virtual isolator
description: An input_boolean helper device, the state of this will control the output relay
selector:
entity:
filter:
domain: input_boolean
controlled_light:
name: Switched target lights
description: One or more light entities, The switch connected to the ZBMini will toggle these
selector:
target:
entity:
domain: light
trigger:
- platform: state
entity_id:
- !input isolator
- !input zbMini
condition:
- condition: or
conditions:
- condition: and
conditions:
- condition: state
entity_id: !input isolator
state: "off"
- condition: state
entity_id: !input zbMini
state: "on"
- condition: and
conditions:
- condition: state
entity_id: !input isolator
state: "on"
- condition: state
entity_id: !input zbMini
state: "off"
action:
- service: switch.toggle
data: {}
target:
entity_id: !input zbMini
- service: light.toggle
data: {}
target:
!input controlled_light
mode: single
I don’t know as I don’t have the same config, give it a try and let us know what you find. The blueprint itself is pretty simple so you should be able to alter it to suit your needs.
OK, got it working. Fault was, as usual, between the seat and the monitor.
Very useful blueprint. Thank you.
Not using the Sonoff switch but the Tuya (Moes) one instead. Would be wise update the description of blueprint accordingly.
I have update suggestion as well:
currently, it switches the bulb ON its last known brightness state. It would be nice if I could override brightness and set it to any value (precentage) when switching ON. I personally need 100% as I’m using wall switches as “reset” if needed and seems that users expect wall switches+bulb work in usual manner.
Hell yeah, it would be great if i can get to make this work. Does this work with a Sonoff ZBMINI-L? So without a neutral? Im a newbie with HA and switches so any help on these and how to connect would be much appreciated. I already disconnected my ZBMINI-L because the combination of a smart light swith with smart lights didn’t work because of the cut off power to the lights. This would stop this, right?
@jeroenva1981
Test it out if it works for you or not. Takes just a couple of minutes. I could not see any limitations as all it does is switch the relay back ON and sets the binary helper either ON or OFF. Also, please note: if you can not switch your bulb off any more then you have to switch binary helper manually once. This fixes it.
@macintoshee Yes, it came to me at an odd time. The switch should appear to keep working as it did before, however instead of the switch turning off power to the smartbulb, it keeps power on going and tells the smartbulb to turn off.
Thanks so much for this. I managed to get this working on the sonoff ZBMINI L2 (No neutral wire ZigBee version). When smart bulb is on and I hit the physical light switch the smart bulb turns off but is still powered and can be controlled via HA or Google Voice commends etc. However if the smart bulb is off and I hit the physical light switch this does not turn on the bulb.
Also after 4 or 5 tries it stops working all of a sudden until I toggle the isolator which kills power to the smart bulb.
so if I turn the physical switch off the sonoff gets no power and won’t do anything until someone flicks the switch again. I assume I need to re wire it in some way. and did you manage to ever get the smart bulb to turn on via the physical switch? I’ve currently got it wired to an extractor fan, but my initial plan was to put them in light switches so that can both use physical and ha based switches to turn it on/off and not get the issue where someone turns the switch off and have to turn it on again physically to use it again
