It provides local control, MQTT and integration with home automation systems such as openHAB, Home Assistant and Domoticz.
You may find more information on the official GitHub page
You may also find relevant information on Tasmota at
If you are starting out and wish to have a relatively easy experience in developing your projects, then try the build-in web interface.
Example of Tasmota Web Interface
the Sonoff 4 Channel Pro MQTT Switch
On delivery it is already in factory reset state.
If you want to factory reset afterwords, check this link Tasmota Button Usage
When held continuously for 40 seconds (Configurable with SetOption32, value is 10x the configured hold time) Tasmota will reset to firmware defaults and restart.
For the temperature/humidity monitor, you also need to specify the sensor type, e.g. AM2301.
You use the Tasmota WEB UI for configuration. Enable MQTT in "Configuration/Other" and then specify your setup in "Configuration/MQTT".
For more details see also https://github.com/arendst/Sonoff-Tasmota/wiki/MQTT
There is a description of the integration with Home Assistant on the Tasmota site.
DrZzz has made some tutorials, which may be helpful (but skip the parts about flashing Tasmota).
General setup for tasmota is described at https://www.youtube.com/watch?v=c2IUIUnxjUY&t=859s
For the RF Bridge there are some more specific instructions at https://www.youtube.com/watch?v=Ega4U1KRlso
The device is given an address by a DHCP server or the WIFI router.
If you know the subnet address you can use the Tasmota Device Locater to search for the device. Else check with the router.
The MQTT Smart Bulb shall be configured as an "AiLight (27)" module.
The installation is done as for any other Tasmota device. However you need to be extremely careful when setting up the Wifi network, since there are no button to do a factory reset. Wrong SSID or password and the bulb is bricked! See how you can configure wifi to enable factory reset below.
To control light, you will normally use MQTT, but to test the basic functionality, it is described how to do this with the web console interface below.
For installation follow the standard procedure.
When the basic installation is done and the module is configured as AiLight you should see the following screen in your web browser:
Using the Toggle button will switch the white light on and off.
To test the colors press the "Console" button and test the light.
You can experiment with the commands color and dimmer. The color parameters are red, green, blue and white. Values are between 0 and 255. The dimmer is percentage with values from 0 to 100.
The bulb can be configured to go into AP mode if it can not find the configured Wifi network.
Go into the console and give the command
With this configuration it will start up in AP mode if it can not find the configured Wifi network. It will expose the network name "sonoff-xxxx". Attach to the network and in your web browser go to 192.168.4.1 to find the UI. Here you can do a "factory reset".
As a minumum configure MQTT host, user and password.
In the web browser UI go into "Configuration/Configure MQTT"
After configuring MQTT, the color command can be given on the topic cmnd/sonoff/color. E.g. to activate the green light publish the parameters 0,255,0,0.
To get information from the device subscribe to "stat/sonoff/+"