Sonoff Mini ZBDIM transition not 0
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Description
What happened?
I have a Sonoff Mini ZBDIM and configured "dimmer_transition_time": 0. However, there's still a visible transition when turning on/off the light. This is especially annoying when walking into a room and turning on the light using the wall switch as it takes some time unti it's on.
Now, I'm not sure, whether this is a Z2M issue or simply that the dimmer cannot do instant on/off.
What did you expect to happen?
Lights turning on/off immediately with no transition when "dimmer_transition_time": 0
How to reproduce it (minimal and precise)
- Set
"dimmer_transition_time": 0 - toggle light state
Zigbee2MQTT version
2.14.1
Adapter firmware version
8.0.2 [GA]
Adapter
Sonoff ZB Dongle-E
Setup
HA addon
Device database.db entry
No response
Debug log
No response
Notes
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
No files, tests, or code entry points are identified in the report. Start by reproducing the behavior with Zigbee2MQTT 2.14.1, a Sonoff Mini ZBDIM, and dimmer_transition_time set to 0, using the listed adapter and Home Assistant add-on setup. Done means determining whether the transition is caused by Zigbee2MQTT or by the dimmer, with evidence such as a debug log or a documented device limitation.
Written by the indexing model from the issue text.
Assessment
- Domain
- embedded-iot
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Active
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100