Home assistant as master for switch

Configuration
1

Hello,

I tried to find an answer into the community but I cannot find it. I have some mqtt switch switch devices connected to HA, my setup is working fine, but when the devices reboots (power outage) they took a default state (off).

I would like that HA act as a master, when it see that the state changed of a managed device it automatically set it again to the state saved in HA (if it was on I would like to have on again or viceversa). Like if HA has the priority to these devices.

I think that is feasible with variables etc, but I would like to know if there is a simple way to do that.

Thank you in advance.

inode

2

That is really the job of the firmware in the mqtt client.

3

Tasmota flashed sonoff switches?
From the Console, for each switch,

SwitchRetain 0
ButtonRetain 0
PowerOnState 3
PowerRetain 1
4

here a automation that I have that run when HA start

- alias: "Tasmota State on HA Restart"
  trigger:
    platform: homeassistant
    event: start
  action:
    - service: mqtt.publish
      data:
        topic: "cmnd/sonoffs/backlog"
        payload: "power1 ;power2 ;power3 ;power4 ;power5; dimmer; state "

this just send a Backlog to the sonoffs ( Group Topic )

image
image707×207 4.69 KB

the thanks goes to digiblurDIY watch his channel

5

First of all thank you for your help.

The devices are some camera with switches (https://github.com/EliasKotlyar/Xiaomi-Dafang-Hacks/) it seems that the firmware doesn’t download the state from mqtt at the startup, it just set again the switch from a default state.

@myle your case is when HA start, I would like that action when the device restart.

Any other idea?

1 Like
6

Is the status of the switch itself correct? ie if it was on when it rebooted is it still physically on?

7

I have a dafang-hacks flashed camera, which particular switch is wrong on reboot?

9

When rebooted the device reset all the states and send to the mqtt with the new state.

10

Infrared settings, motion etc. All the switchs mainly.