ESPHome

Hi folks,

maybe I’m blind, but how does one send a state to an esphome mqtt topic?
I’m using this on a wemos D1 (ESP8266) to control a connected argb led-strip…

this is what I can sniff from my mqtt broker

topic: argb_controller_01/light/fastled_ws2812b_light/state

{"effect":"None","state":"OFF","brightness":168,"color":{"r":255,"g":255,"b":255}}

so I added this to my mqtt.things

// argb_controller_01
    Thing topic ARGB-Controller-01 "MQTT - ARGB-Control-01" @ "None"  {
        Channels:
            Type string : effect "Lichteffect" [
                stateTopic="argb_controller_01/light/fastled_ws2812b_light/state",
                transformationPattern="JSONPATH:$.effect"
            ]
            Type switch : state "ONOFF State" [
                stateTopic="argb_controller_01/light/fastled_ws2812b_light/state",
                transformationPattern="JSONPATH:$.state"
            ]
            Type string : brightness "Brightness" [
                stateTopic="argb_controller_01/light/fastled_ws2812b_light/state",
                transformationPattern="JSONPATH:$.brightness"
            ]
            Type string : colors-r "Red" [ 
                stateTopic="argb_controller_01/light/fastled_ws2812b_light/state",
                transformationPattern="JSONPATH:$.color.r"
            ]
            Type string : colors-g "Green" [ 
                stateTopic="argb_controller_01/light/fastled_ws2812b_light/state",
                transformationPattern="JSONPATH:$.color.g"
            ]
            Type string : colors-b "Blue" [ 
                stateTopic="argb_controller_01/light/fastled_ws2812b_light/state",
                transformationPattern="JSONPATH:$.color.b"
            ]
    }

and these items

// ARGB-Controller-01
String  ARGBControlEffect       "Light-Effect"          <none>          (gARGB01)                                   { channel="mqtt:topic:MosquittoMqttBroker:ARGB-Controller-01:effect" }
Switch  ARGBControlState        "Switch"                <none>          (gARGB01)                                   { channel="mqtt:topic:MosquittoMqttBroker:ARGB-Controller-01:state" }
String  ARGBControlBrightness   "Brightness"            <none>          (gARGB01)                                   { channel="mqtt:topic:MosquittoMqttBroker:ARGB-Controller-01:brightness" }
String  ARGBControlColorR       "Color R"               <none>          (gARGB01)                                   { channel="mqtt:topic:MosquittoMqttBroker:ARGB-Controller-01:colors-r" }
String  ARGBControlColorG       "Color G"               <none>          (gARGB01)                                   { channel="mqtt:topic:MosquittoMqttBroker:ARGB-Controller-01:colors-g" }
String  ARGBControlColorB       "Color B"               <none>          (gARGB01)                                   { channel="mqtt:topic:MosquittoMqttBroker:ARGB-Controller-01:colors-b" }

so far so good, I can display all item states but how do I change a state? I can’t find a command topic,
how can I do this??

thanks

Dan