I want HA to remember brightness of my lights when I turn them back on. How?

Configuration
1

My lights are controlled through MQTT and they accept the following commands: ON, OFF, LASTSTATE or a value between 0-100 for the brightness. “LASTSTATE” will turn them on at the last brightness and will report back the brightness too.

Now, how can I make HA send the “LASTSTATE” command when I hit the button in HA? It seems like it’s always sending “100”

2

If I can configure HA to remember the last brightness, that’s fine too. In that case it will nog be using the “LASTSTATE” mqtt command.

3

I now have this:

on_command_type: first
payload_on: "LASTSTATE"
payload_off: "OFF"
state_value_template: "{% if value_json.state|int > 0 %}LASTSTATE{% else %}OFF{% endif %}"

When I turn the light on it sends LASTSTATE and when I turn it off it sends OFF. So far, so good.
The problem is, when I change brightness in HA it sends LASTSTATE followed by the brightness.

It looks like on_command_type only has 3 options: last, first or brightness.

None of these options fit my needs? Because I only need it to send the payload_on (LASTSTATE) if the light is off but not at all when the light is on.

4

I saw mqtt light default schema has ability to change order os sending brightness and on command. not sure it fits your needs though. refer docs and try

5

We can change the order of the commands with on_command_type (which can be “first” , “last” or “brightness”.)

Both “first” and “last” will still send both commands but that’s not what I need. “brightness” will only send the brightness but HA does not remember the last state so it will always send 100 if the light is off.

What I need is:

  • If the light is off, and turned on: send “LASTSTATE”
  • If brightness is set: send brightness only (without sending LASTSTATE)
6

It appears that you need fine-grained control of what is published. I suggest you consider using a Template Light instead of an MQTT Light. You have complete control over what the turn_on, turn_off and set_level options should do (i.e. use the mqtt.publish service call to publish exactly what you want).

7

I’m working with mqtt auto discovery so that would require a big change in the whole setup :frowning:

I do wonder, is there a way to make HA remember the last brightness state? I was looking for that initially but didn’t find a good solution.

8

Not with MQTT Light; none of the three types of on_command_type you tried worked the way you want. Plus you don’t want to use a Template Light because you also want the solution to use MQTT Discovery.