Tasmota does support Domoticz MQTT out of the box for sensors and relays both.
To configure Domoticz and Tasmota, you must follow the procedure given below:
Prerequisites:
The following servers must be available:
- Having installed/accessed an MQTT broker server and established a connection with the Tasmota device.
- Having installed Domoticz.
MQTT and Virtual Sensor
If you haven’t already configured Domoticz MQTT and Virtual Sensor hardware, follow this procedure:
- Open the hardware page. There you must type –
MQTT Client Gateway with LAN interface.
- Provide a suitable name.
- Now, you will need to configure the interface with access to your MQTT server (Remote Address, Port, Username and Password).
- After that, set the public topic to flat (which seems to relate to out in the select field).
- Open the hardware page. There you must type –
Dummy (used for virtual switches).
- Provide a name.
Virtual Switch
For creating a new virtual switch, use these steps. Make sure to remember its idx number.
- To design a new virtual switch which you will be using with Sonoff, tap on Create Virtual Sensors.
- Provide a suitable name. Select Sensor Type Switch.
- Now go to the Device Page and search for the new switch with the name you have provided previously.
- Remember its Idx number.
Tasmota Configuration
Tasmota allows several ways for configuring Domoticz. Let’s check them out.
- Use the webinterface and select Configuration – Configure Domoticz:
- Set In topic to domoticz/in as hardcoded in Domoticz
- Set Out topic to domoticz/out as hardcoded in Domoticz
- Configure Idx 1 to the value read in step 2.i
- Use MQTT and execute commands (if necessary, replace tasmota with unique topic you configured in Initital Configuration, see point 5 there)
- cmnd/tasmota/DzInTopic with payload domoticz/in as hardcoded in Domoticz
- cmnd/tasmota/DzOutTopic with payload domoticz/out as hardcoded in Domoticz.
- cmnd/tasmota/DzIdx1 with payload value read in step 2.i
- Use the serial interface and execute commands:
- DzInTopic with domoticz/in as hardcoded in Domoticz
- DzOutTopic with domoticz/out as hardcoded in Domoticz
- DzIdx1 with the value read in step 2.i
Usage
Those were all the steps you needed to follow to be able to control your device from the Domoticz user interface.
- Go to the Switches page and then scroll down to search for your switch as configured in step 1.
- Tasmota should respond when you toggle the light bulb.
Automatic Discovery
Tasmota allows automatic discovery by Domoticz through the Domoticz MQTT Discovery plugin.
Prerequisites
The following services should be made available:
- You have access or have installed a MQTT broker server. Plus, you made contact with your sonoff.
- Domoticz is installed.
- The Domoticz MQTT Discovery plugin is also installed.
MQTT Discovery Plugin
Configure Domoticz MQTT Discovery plugin.
- Visit the hardware page and Type MQTT Discovery.
- Provide a name, e.g. Tasmota.
- Configure the interface with access to your MQTT server (MQTT Server Address, Port, Username and Password).
- Now, change the Discovery topic to homeassistant unless it has been changed in a custom Tasmota build.
- At last, change the Ignored device topic to /tasmota/ to avoid unconfigured Tasmota devices from being discovered.
Tasmota Configuration
Precompiled Binary:
- Every Tasmota device needs to have its own topic. The quickest way is to set topic to tasmota_%06X (%06X will be replaced by MAC address). See here for how to set the topic.
- Use MQTT or Serial or Web console and execute commands (replace %topic% with the device’s unique topic).
- cmnd/%topic%/SetOption19 with payload 1 to enable MQTT discovery.
Custom Binary
- The settings mentioned above can be defined in user_config_override.h (TBD)
Usage
- That’s it! You are now able to find your Sonoff in the Domoticz user interface.
- On the Switches page scroll down and find your Switch as configured in step 1.
- Toggle the light bulb so that Sonoff can respond.