Motion detected light with overriding by ZigBee wall switch

General
1

Hi!

I'm looking to automate my lights with motion sensor, but it needs to be overridable from the light switch itself (in case I want to spend more time in the room than the motion sensor timer gives).

The situation looks as following:

  • the light switch is a eWeLink ZB-SW01. Every time I press it, it toggles the lights and this behaviour cannot be changed (i.e. I cannot press the switch and not toggle the lights),
  • the motion sensor is SONOFF SNZB-03,
  • both are connected via Zigbee2MQTT to Home Assistant.

Here's what I want to achieve:

  1. When I enter the room, I want the lights to turn ON and then after 5 minutes turn OFF,
  2. When I enter the room and press the switch on the wall, I want the lights to remain ON until I turn it OFF manually on the wall or from HA panel OR 60 minutes pass by.

Point 1 is really straightforward. But point 2 is more complex: The usual situation will be:

  1. Me entering the room
  2. Motion sensor turns ON the lights
  3. I press the wall switch, so lights are toggled OFF
  4. Node-RED turns the lights ON again

I want to use the HA events: state and call-service nodes, however calling the service to toggle the lights, triggers the events: state node - however, I can differentiate what was the origin of the event by checking the msg.data.old_state.context.user_id (it's equal to null if I press the switch on the wall).

I do not want to use poll: state nodes, because of efficiency, speed and latency.

I'd prefer not to use HA input_boolean's and keep all the flags/semaphores within Node-RED.

How to do it, the Node-RED way?

2

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