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Incorrect illuminance readings and missing battery level via matter

Posted: 2025年 Mar 22日 01:42
by Zen2928

Hello,
I have a presence sensor that also measures illuminance. The device is paired with HomeKit via a Matter bridge, but I noticed that the brightness values displayed in HomeKit are incorrect. For example,

Tuya app shows 1640 lx, HomeKit 1.04 lx;
Tuya shows 393 lx, HomeKit 1.01 lx;
Tuya shows 164 lx, HomeKit 1 lx.

Is there a way to fix this issue so that HomeKit correctly reflects the illuminance data? Additionally, is it possible to add battery level monitoring for this device in HomeKit?

Virtual ID: bfa837af2b1fb86e10mjaz


Re: Incorrect illuminance readings and missing battery level via matter

Posted: 2025年 Mar 26日 10:22
by qiusui

I have received your feedback, please wait patiently, I will resume your processing progress later today.


Re: Incorrect illuminance readings and missing battery level via matter

Posted: 2025年 Mar 26日 14:44
by qiusui

It's kind of weird, In fact, I saw that the configuration of this device already includes the power report, and the brightness values are also configured, so I did not find anything abnormal.

Perhaps you can try to bridge the device to apple home and compare the difference between the three platforms.

I will not modify the configuration of the device for the time being, waiting for your reply.


Re: Incorrect illuminance readings and missing battery level via matter

Posted: 2025年 Mar 26日 21:18
by Zen2928

Thank you for your response.
I checked how it looks in Home Assistant, and the light intensity value always shows 1 lx. However, the battery percentage is displayed only in Home Assistant.

I’m sending screenshots from Tuya, HomeKit, and Home Assistant.