DHT11 (attached to ESP8266 and flashed with Tasmota) sensor values not showing up in Home Assistant

Configuration
1

Hi,
I flashed Tasmota on Nodemcu. Attached a 4 channel relay and a DHT11 sensor. It shows up fine on the browser. I can see the sensor outputs and can control the relays. However, from HA, I can only control the relays but don’t see the output of the sensors.
Below is my entry in the configuration.yaml file. I took it from the Tasmota wiki https://github.com/arendst/Sonoff-Tasmota/wiki/Home-Assistant-%E2%80%90-Manual-Config

sensor:
  - platform: mqtt
    name: "Temperature"
    state_topic: "tele/sonoff/SENSOR"
    value_template: "{{ value_json['DHT22'].Temperature }}"
    unit_of_measurement: "°C"
    availability_topic: "tele/sonoff/LWT"
    payload_available: "Online"
    payload_not_available: "Offline"
  - platform: mqtt
    name: "Humidity"
    state_topic: "tele/sonoff/SENSOR"
    value_template: "{{ value_json['DHT22'].Humidity }}"
    unit_of_measurement: "%"
    availability_topic: "tele/sonoff/LWT"
    payload_available: "Online"
    payload_not_available: "Offline"

Below is the console output from Tasmota:

21:45:29 MQT: tele/sonoff/SENSOR = {"Time":"2019-03-31T21:45:29","DHT11":{"Temperature":31.3,"Humidity":43.0},"TempUnit":"C"}

32%20AM
32%20AM910×1204 47.9 KB

Tasmota screenshot showing Temperature and Humidity alongwith relay status.

06%20AM
06%20AM2348×1144 156 KB

HA screenshot showing the relays (under Switch) but not the sensor output

What could I be missing?

2

Change your sensor from DHT22 to DHT11 as per the json string.

value_template: "{{ value_json['DHT11'].Temperature }}"

Do the same for the humidity sensor.

1 Like
3

My bad. I had directly pasted it from the tasmota wiki. My actual configurations are
value_template: “{{ value_json[‘DHT11’].Temperature }}”
and
value_template: “{{ value_json[‘DHT11’].Humidity }}”
Still not working.

4

The same problem over here …

5

So, I got it resolved. Though I can’t explain why. There was a line in the config.yaml file which was throwing a warning (completely unrelated). Removing that solved the issue.
Thus, the config in the documentation should be working right.

6

Can you paste your configuration and the output from the Tasmota console?

7

output from Tasmota :

12:08:27 MQT: tele/sonoffTH/STATE = {“Time”:“2019-04-03T12:08:27”,“Uptime”:“1T22:02:27”,“Vcc”:2.714,“SleepMode”:“Dynamic”,“Sleep”:50,“LoadAvg”:21,“Wifi”:{“AP”:1,“SSId”:“MEO-HRM”,“BSSId”:“00:06:91:4C:0D:40”,“Channel”:1,“RSSI”:100,“LinkCount”:1,“Downtime”:“0T00:00:04”}}
12:08:27 MQT: tele/sonoffTH/SENSOR = {“Time”:“2019-04-03T12:08:27”,“DHT11”:{“Temperature”:24.9,“Humidity”:37.0},“TempUnit”:“C”}

configuration from yaml file:

  • platform: mqtt
    state_topic: “tele/sonoffTH/SENSOR”
    name: "Temperatura Sala "
    icon: mdi:thermometer
    availability_topic: “tele/sonoffTH/SENSOR”
    unit_of_measurement: °C
    value_template: “{{ value_json[‘DHT11’].Temperature }}”
    payload_available: “Online”
    payload_not_available: “Offline”

  • platform: mqtt
    state_topic: “tele/sonoffTH/SENSOR”
    name: "Humidade Sala "
    icon: mdi:water-percent
    availability_topic: “tele/sonoffTH/SENSOR”
    value_template: “{{ value_json[‘DHT11’].Humidity }}”
    unit_of_measurement: ‘%’
    payload_available: “Online”
    payload_not_available: “Offline”

8

{{value_json.DHT11.Temperature}}

9

Replace with following code. Its working.

  - platform: mqtt
    name: "Bedroom Temperature"
    state_topic: "tele/testlamps/SENSOR"
    # Change testlamps with MQTT topic given in Tasmota Configuration/Configure MQTT WUI
    value_template: "{{ value_json['DHT11'].Temperature }}"
    # Change DHT11 with your actual sensor name like DHT22, AM2301 etc.
    unit_of_measurement: "°C"  # "F" if using Fahrenheit
    availability_topic: "tele/testlamps/LWT"
    # Change testlamps with MQTT topic given in Tasmota Configuration/Configure MQTT WUI
    payload_available: "Online"
    payload_not_available: "Offline"
    device_class: temperature

Hit like if it worked for you !!! :slight_smile:

1 Like