MQTT Switch with multiline state_on and state_off

Configuration
,
1

I am connecting my Nissan LEAF to Home Assistant through MQTT (OVMS v3). The climate controls work by sending console commands to a “command” topic and responses come from a “respose” topic. The complication is that the response is a multiline response. I got my yaml code from here, and I assume it works for the author, but I can’t get it to work. The YAML seems to match the string in MQTT. Are there any debug tools I can use to see what it is HA is seeing?

Config:

mqtt:
  switch:
  - name: Leaf Climate Conrol
    qos: 1
    command_topic: "ovms/mqttuser/STICKY/client/home-assistant/command/1"
    state_topic: "ovms/mqttuser/STICKY/client/home-assistant/response/1"
    state_on: |
      Climate Control
      on

    state_off: |
      Climate Control
      off

    payload_on: "climatecontrol on"
    payload_off: "climatecontrol off"

MQTT transactions:

ovms/mqttuser/STICKY/client/home-assistant/command/1 climatecontrol off
ovms/mqttuser/STICKY/client/home-assistant/response/1 Climate Control 
off

ovms/mqttuser/STICKY/event clock.2231

(I included the 'clock` event to show there are two carriage returns after the response)

I expect the switch state to be set to “Off” when the response topic is sent. Instead it always shows state “Unknown.”

image
image356×520 4.46 KB

What is wrong here?

2

Ugh, thanks emacs.

Turns out there’s a trailing space in the message, and I have configured emacs (text editing program) to remove trailing spaces when saving (because usually that’s AWESOME). This also explains why the original author’s version would work.

Here’s the fixed config:

mqtt:
  switch:
  - name: Leaf Climate Control
    qos: 1
    command_topic: "ovms/mqttuser/STICKY/client/home-assistant/command/1"
    state_topic: "ovms/mqttuser/STICKY/client/home-assistant/response/1"
    state_on: "Climate Control \non\n"
    state_off: "Climate Control \noff\n"

    payload_on: "climatecontrol on"
    payload_off: "climatecontrol off"

Now to talk with the OVMS developers to see why in the world they thought newlines and trailing spaces are a good idea…

3

For anyone trying to do this, I’ve uploaded my full configs to github: