core: Tuya Gosund Dimmer switch brightness not able to change

The problem

I am unable to set the brightness on my Gosund Tuya dimmer switches. I can see the value change in HA when I set it outside of HA, but unable to change brightness in HA

What version of Home Assistant Core has the issue?

core-2021.11.1

What was the last working version of Home Assistant Core?

core-2021.9.7

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Tuya

Link to integration documentation on our website

https://www.home-assistant.io/integrations/tuya/

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

Product Name: SW2智能调光开关 Product Category: dj

JSON:

[
  {
    "code": "switch_led",
    "value": true
  },
  {
    "code": "bright_value",
    "value": 25
  }
]

About this issue

Original URL
State: closed
Created 3 years ago
Comments: 20 (6 by maintainers)

Most upvoted comments

Ok, thanks! That look like a bug indeed! Thanks for all the extensive information on this, that helps a lot!

frenck on Nov 7, 2021

I can confirm that this issue is still present on the latest HA 2021.11.5 update

Quinniedid on Nov 23, 2021

Same issue here, my Gosund devices - Product Category tgq in Tuya work fine. My other Devices (CE smart home - Product Category dj in tuya) do not dim and act only as a switch. Let me know if I can provide any other info to help.

moedaug on Nov 9, 2021

Same here, this issue is still present, seem not to be able to dim any devices with a product category of DJ. I have 3 dimmer switches that fall into this category. I am able to di them with the tuya app, but not through hassio Version core-2021.11.5

moedaug on Nov 23, 2021

That was trying to change the brightness.

Turning light off:

2021-11-06 23:31:30 DEBUG (SyncWorker_0) [homeassistant.components.tuya.base] Sending commands for device 34142186f4cfa201671b: [{'code': <DPCode.SWITCH_LED: 'switch_led'>, 'value': False}]
2021-11-06 23:31:31 DEBUG (Thread-32) [homeassistant.components.tuya] Received update for device 34142186f4cfa201671b: {'switch_led': False, 'bright_value': 255}

Turning light on:

2021-11-06 23:31:34 DEBUG (SyncWorker_3) [homeassistant.components.tuya.base] Sending commands for device 34142186f4cfa201671b: [{'code': <DPCode.SWITCH_LED: 'switch_led'>, 'value': True}]
2021-11-06 23:31:34 DEBUG (Thread-32) [homeassistant.components.tuya] Received update for device 34142186f4cfa201671b: {'switch_led': True, 'bright_value': 255}

Trying to change brightness on light:

2021-11-06 23:31:40 DEBUG (SyncWorker_1) [homeassistant.components.tuya.base] Sending commands for device 34142186f4cfa201671b: [{'code': <DPCode.SWITCH_LED: 'switch_led'>, 'value': True}]
2021-11-06 23:31:41 DEBUG (Thread-32) [homeassistant.components.tuya] Received update for device 34142186f4cfa201671b: {'switch_led': True, 'bright_value': 255}

Quinniedid on Nov 7, 2021

Having the same issue, looks like the Tuya integration thinks that simple dimmers support color (color_mode is ‘hs’ instead of ‘brightness’) and, as a result, setting the brightness goes down the wrong path and ends up not setting anything.

This is probably a one-line code fix somewhere inside https://github.com/home-assistant/core/blob/79d6d795578670bf1bb387af165383532355994b/homeassistant/components/tuya/light.py#L649

alexanv1 on Nov 26, 2021

I can confirm this is still an issue on 2021.11.5 for dimmers with product category ‘tgq’ (DS02 Smart dimmer switch)

serranoabq on Nov 23, 2021

Same for me too. The issue is still there with 2021.11.5.

gsh4rm4 on Nov 23, 2021