Add mqtt manuall to homeassistant

1

I have read a lot am I am using homeassistant for several years now, but I did not manage to add MQTT topics manually. Thats way easier with openhab.

So I have a python script sending messages via mqtt. It publishes p.ex.:

grafik
grafik1247×119 19.8 KB

So topic is simon-server/acpitz-acpi-0

I now tried to work with the mqtt autodiscovery by sending a message:
topic: homeassistant/sensor/cpu_temp/config
payload:

{"availability":[{"topic":"simon-server/acpitz-acpi-0"}],"device":{"identifiers":["acpitz"],"manufacturer":"Asus","model":"simon j4205","name":"cpu","sw_version":"3000-0001"},"device_class":"temperature","enabled_by_default":true,"json_attributes_topic":"simon-server/acpitz-acpi-0","name":"simon cpu temperature","state_class":"measurement","state_topic":"simon-server/acpitz-acpi-0","unique_id":"cpu_simon","unit_of_measurement":"°C","value_template":"{{ value_json.temperature }}"}

Now I can see the device, but there are no entities. How to add them?

grafik
grafik1656×1010 58.2 KB

I also tried to add via configuration.yaml, but there is no such file in the relevant folder. The folder is named in the system configuration.

simon-itx:/docker/volumes/openhab/conf$ ls -lh
insgesamt 20K
drwxr-xr-x 3 9001 9001 3 Apr 24 14:30 automation
drwxr-xr-x 2 9001 9001 4 Apr 24 14:46 html
drwxr-xr-x 3 9001 9001 3 Apr 12 23:37 icons
drwxr-xr-x 2 9001 9001 3 Apr 24 14:46 items
drwxr-xr-x 2 9001 9001 4 Apr 24 14:46 persistence
drwxr-xr-x 2 9001 9001 3 Apr 24 14:46 rules
drwxr-xr-x 2 9001 9001 3 Apr 24 14:46 scripts
drwxr-xr-x 2 9001 9001 9 Apr 24 14:46 services
drwxr-xr-x 2 9001 9001 3 Apr 24 14:46 sitemaps
drwxr-xr-x 2 9001 9001 4 Apr 24 14:46 sounds
drwxr-xr-x 2 9001 9001 3 Apr 24 14:46 things
drwxr-xr-x 2 9001 9001 5 Apr 24 14:46 transform

grafik
grafik627×631 16.7 KB

2

Your screenshot shows {“temp1” : 64.0} so it should be

"value_template":"{{ value_json.temp1 }}"}
3

Additionally:

  "availability": [
    {
      "topic": "simon-server/acpitz-acpi-0"
    }
  ],

should be

"availability_topic": "simon-server/acpitz-acpi-0/<whatever topic>"

It must be a different topic whose content is, by default, online or offline

  "json_attributes_topic": "simon-server/acpitz-acpi-0",

It works (I guess), but doesn’t make sense as the only object in that topic is the state.

EDIT: Should be availability_topic

4

Many thanks. I now published:

{
  "availability": "simon-server/acpitz-acpi-0/online",
  "device": {
    "identifiers": [
      "acpitz2"
    ],
    "manufacturer": "Asus",
    "model": "simon j4205_",
    "name": "cpu_temp",
    "sw_version": "3000-0001"
  },
  "device_class": "temperature",
  "enabled_by_default": true,
  "json_attributes_topic": "simon-server/acpitz-acpi-0",
  "name": "simon cpu temperature",
  "state_class": "measurement",
  "state_topic": "simon-server/acpitz-acpi-0",
  "unique_id": "cpu_simon",
  "unit_of_measurement": "°C",
  "value_template": "{{ value_json.temp1 }}"
}

but still have this:

grafik
grafik1763×1051 61.2 KB

5

I don’t think you understood me (and I made a mistake myself, should be availability_topic)

This is a working example (with abbreviations)

{
  "uniq_id": "mqtt_sensor.temperature_humidity_sensor_0ef5_humidity",
  "name": "Temperature Humidity Sensor 0Ef5 Humidity",
  "stat_t": "ha_stream/sensor/temperature_humidity_sensor_0ef5_humidity/state",
  "json_attr_t": "ha_stream/sensor/temperature_humidity_sensor_0ef5_humidity/attributes",
  "avty_t": "ha_stream/sensor/temperature_humidity_sensor_0ef5_humidity/availability",
  "dev_cla": "humidity",
  "unit_of_meas": "%",
  "stat_cla": "measurement",
  "dev": {
    "mf": "Xiaomi",
    "mdl": "LYWSD03MMC",
    "name": "Temperature/Humidity Sensor 0EF5",
    "ids": [
      "A4:C1:38:14:0E:F5"
    ]
  }
}

image
image1198×131 8.85 KB

Also, look in your HA log for possible errors.