Tasmota flashed MagicHome RGB LED strip controller via MQTT

hafniumzinc · December 22, 2020, 7:07pm

This is an annoying bug with BasicUI in a browser, but works fine on the phone apps (Android/iOS). See:

github.com/openhab/openhab-webui

[BasicUI] HSB Colorpicker sets 50% brightness when color is “picked”

opened 06:06PM - 21 Oct 20 UTC

closed 05:52PM - 05 Dec 22 UTC

Trickx

bug basic ui

**Setup:** - OH 2.5.9 - Tasmota HSB driven LED bulb connected via MQTT **Is…sue** I have an issue with a colorpicker (HSB). When I open the colorpicker, it shows correct color and brightness information. My Tasmota bulb sends JSON-formatted result strings via MQTT in case of an update. While JSONpath parsing of a switch works fine, the colorpicker jumps back to 50% brightness after setting a color in most cases (but not always). The command is send correctly. It seems that the status update is not processed correctly. JSONpath parsing works fine when triggered externally as well as via the colorpicker: ``` 2020-10-21 15:17:01.278 [ome.event.ItemCommandEvent] - Item ‘BTL_bulb_1_color’ received command 238,92,100 2020-10-21 15:17:01.327 [vent.ItemStateChangedEvent] - BTL_bulb_1_color changed from 359,100,100 to 238,92,100 2020-10-21 15:17:05.348 [ome.event.ItemCommandEvent] - Item ‘BTL_bulb_1_color’ received command 116,6,100 2020-10-21 15:17:05.427 [vent.ItemStateChangedEvent] - BTL_bulb_1_color changed from 238,92,100 to 116,6,100 2020-10-21 15:17:08.384 [ome.event.ItemCommandEvent] - Item ‘BTL_bulb_1_color’ received command 46,98,100 2020-10-21 15:17:08.424 [vent.ItemStateChangedEvent] - BTL_bulb_1_color changed from 116,6,100 to 46,98,100 2020-10-21 15:17:09.315 [ome.event.ItemCommandEvent] - Item ‘BTL_bulb_1_color’ received command 303,82,100 2020-10-21 15:17:09.391 [vent.ItemStateChangedEvent] - BTL_bulb_1_color changed from 46,98,100 to 303,82,100 ``` As you can see, brightness was always set to 100, but the colorpicker shows 50%. ![](https://community-openhab-org.s3.dualstack.eu-central-1.amazonaws.com/original/3X/a/4/a43a7f643f0ea9beaad0a4fd8d2510aeb460c66b.jpeg) Additionally, when I change the color externally and re-open the colorpicker, a white color and brightness of 50% are shown. My interpretation is that the communication between the bulb item and the colorpicker is somehow buggy. The setup works fine via the iOS app, so openHAB config should be ok. This issue has been discussed also at [openHAB's community forum](https://community.openhab.org/t/hsb-colorpicker-sets-50-brightness-when-color-is-picked/96698/8).