Can't control color of an led strip controller via HUE bridge

Add-ons Bindings
1
  • Platform information:
    • Hardware: Mac Mini
    • OS: Mojave
    • Java Runtime Environment: 1.8.0_221-b11
    • openHAB version: 2.5.3

I’m using the HUE binding to control lights attached to my HUE bridge.
Besides other lights a Sunricher RGB+CCT controller is attached to the bridge. I can turn on/off the strip and control the color temperature. But I don’t manage to control the RGB colors. The strip controller appears as a single device towards the HUE bridge. On my sitemap I use 3 types to control the strip: a switch (ok), a slider for the color temp. (ok) and a colorpicker. I discovered things via auto-discovery.

Issue: The saturation slider of the color picker controls the brightness instead of saturation. The color picker itself has no effect on the color at all.

  • The bridge’s strip (ID9) configuration:
{
  "state": {
    "on": true,
    "bri": 254,
    "hue": 19127,
    "sat": 254,
    "effect": "none",
    "xy": [
      0.1439,
      0.1724
    ],
    "ct": 337,
    "alert": "select",
    "colormode": "ct",
    "mode": "homeautomation",
    "reachable": true
  },
  "swupdate": {
    "state": "notupdatable",
    "lastinstall": "2020-03-28T16:52:14"
  },
  "type": "Extended color light",
  "name": "Bibliothek",
  "modelid": "RGB-CCT",
  "manufacturername": "Sunricher",
  "productname": "Extended color light",
  "capabilities": {
    "certified": false,
    "control": {
      "colorgamuttype": "other",
      "ct": {
        "min": 155,
        "max": 450
      }
    },
    "streaming": {
      "renderer": false,
      "proxy": false
    }
  },
  "config": {
    "archetype": "huelightstrip",
    "function": "mixed",
    "direction": "omnidirectional"
  },
  "uniqueid": "ec:1b:bd:ff:fe:98:6f:ab-01",
  "swversion": "2.5.3_r47"
}
  • Channel Configuration
    A channel of type “hue:0210:ecb5fa217ce1:9:color” has been configured and linked to an item.

Log when trying to change the color to red:

18:29:07.093 [INFO ] [smarthome.event.ItemCommandEvent     ] - Item 'Bibliothek_Farbe' received command 3.2122097601091415,70.11015385426983,100.0
18:29:07.094 [INFO ] [arthome.event.ItemStatePredictedEvent] - Bibliothek_Farbe predicted to become 3.2122097601091415,70.11015385426983,100.0
18:29:07.096 [INFO ] [smarthome.event.ItemStateChangedEvent] - Bibliothek_Farbe changed from 121,100,100 to 3.2122097601091415,70.11015385426983,100.0
18:29:07.395 [INFO ] [smarthome.event.ItemCommandEvent     ] - Item 'Bibliothek_Farbe' received command 3.2122097601091415,70.11015385426983,100.0
18:29:07.396 [INFO ] [arthome.event.ItemStatePredictedEvent] - Bibliothek_Farbe predicted to become 3.2122097601091415,70.11015385426983,100.0
18:29:13.653 [INFO ] [smarthome.event.ItemStateChangedEvent] - Bibliothek_Farbe changed from 3.2122097601091415,70.11015385426983,100.0 to 3,100,100