Sonof Tasmota does not show up in openHab

I have a working Mosquitto mqtt and openHub installed on RaspberryPi 2 the required add-ons MQTT action, MQTT Binding and JSONPath Transformation are also installed.
My Sonof Tasmota devices does not pop-up in openHab.
My mqtt.cfg

broker.url=tcp://localhost:1883
broker.user=mqttuser
broker.pwd=mqttuser
broker.qos=1
broker.retain=true
broker.async=false

My Log;

02:23:10.928 [INFO ] [der.internal.HomeBuilderDashboardTile] - Started Home Builder at /homebuilder
02:23:13.616 [INFO ] [i.dashboard.internal.DashboardService] - Started dashboard at http://192.168.0.10:8080
02:23:13.728 [INFO ] [i.dashboard.internal.DashboardService] - Started dashboard at https://192.168.0.10:8443
02:23:36.624 [INFO ] [rthome.model.lsp.internal.ModelServer] - Started Language Server Protocol (LSP) service on port 5007
02:23:47.827 [INFO ] [.basic.internal.servlet.WebAppServlet] - Started Basic UI at /basicui/app
02:23:48.298 [INFO ] [marthome.ui.paper.internal.PaperUIApp] - Started Paper UI at /paperui
02:23:48.705 [INFO ] [bpanel.internal.HABPanelDashboardTile] - Started HABPanel at /habpanel
02:23:49.344 [INFO ] [openhab.io.transport.mqtt.MqttService] - MQTT Service initialization completed.
02:23:49.360 [INFO ] [rt.mqtt.internal.MqttBrokerConnection] - Starting MQTT broker connection ‘broker’
02:23:49.388 [DEBUG] [org.openhab.binding.mqtt ] - BundleEvent STARTING - org.openhab.binding.mqtt
02:23:49.401 [DEBUG] [b.binding.mqtt.internal.MqttActivator] - MQTT binding has been started.
02:23:49.421 [DEBUG] [org.openhab.binding.mqtt ] - BundleEvent STARTED - org.openhab.binding.mqtt
02:23:49.474 [DEBUG] [org.openhab.binding.mqtt ] - ServiceEvent REGISTERED - {org.openhab.model.item.binding.BindingConfigReader, org.openhab.binding.mqtt.MqttBindingProvider}={component.name=org.openhab.binding.mqtt.genericbindingprovider, component.id=190, service.id=313, service.bundleid=215, service.scope=bundle} - org.openhab.binding.mqtt
02:23:49.491 [DEBUG] [org.openhab.binding.mqtt ] - ServiceEvent REGISTERED - {org.osgi.service.event.EventHandler}={event.topics=openhab/, component.name=org.openhab.binding.mqtt.MqttItemBinding, component.id=189, service.id=314, service.bundleid=215, service.scope=bundle} - org.openhab.binding.mqtt
02:23:49.599 [DEBUG] [org.openhab.binding.mqtt ] - ServiceEvent REGISTERED - {org.osgi.service.event.EventHandler, org.osgi.service.cm.ManagedService}={event.topics=openhab/
, service.pid=org.openhab.mqtt-eventbus, component.name=org.openhab.binding.mqtt.eventbus, component.id=191, service.id=316, service.bundleid=215, service.scope=bundle} - org.openhab.binding.mqtt
02:23:49.638 [DEBUG] [ing.mqtt.internal.MqttEventBusBinding] - MQTT: Activating event bus binding.

I spend a lot of troubleshooting and reinstalled openHub several times but cannot get the Sonoff in, all help will be very welcome!

The MQTT binding doesn’t autodiscover things.
You need to configure your item manually in an items file.

https://docs.openhab.org/addons/bindings/mqtt1/readme.html

on top of what @vzorglub already pointed out, have a look at the tasmota-wiki:

PS: please insert code/log/etc in code fences (one of the Icons on the right), makes it easier to read

Thanks Vincent, I did not read the manual correctly, I know now that openHab is not recognizing the Sonoff’s without additional programming like the .items and .screens and .rules files.
At this moment I have created two dummy switches in the Home screen of the Basic ui, the only thing I have to figure out is how openHab can “talk” to the Sonoff’s.

Hi, when you have MQTT up and running, you update your variables like shown below. The topic has to correspond to what you use on the sonoff. This is from my .items:
Switch Stereo_stikk “Stereo [%s]” (Lyd,Daglig) {mqtt=">[mosquitto:cmnd/Sonoff1/power:command:ON:1],>[mosquitto:cmnd/Sonoff1/power:command:OFF:0],<[mosquitto:stat/Sonoff1/POWER:command:ON:1],<[mosquitto:stat/Sonoff1/POWER:command:OFF:0]"}

I also use mqttfx to verify that my openhab and sonoff setup is correct.

Good Luck!