Tuya RB-SRAIN01 reports lux, should be mW

[JarnoBoks]

What happened?

The Tuya RB-SRAIN01 reports illuminance in lx on three channels (illuminance/illuminance avg 20 / illuminance max), but to my knowledge this should be mV instead of lx.

What did you expect to happen?

I would expect a conversion or the unit mV so I can do my conversion.

How to reproduce it (minimal and precise)

No response

Zigbee2MQTT version

1.42.0

Adapter firmware version

20220219

Adapter

CC2531

Setup

Plain on x86064 debian

Debug log

None

[lux73]

ehm, no...

https://en.m.wikipedia.org/wiki/Lux

[JarnoBoks]

ehm, I don't understand your answer.

The unit reports ~5300lx while my calibrated light meter reports 680lx. And in this review the values are shown as mV too.
https://smarthomescene.com/reviews/tuya-zigbee-solar-rain-sensor-rb-srain01-review/

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[w00dst0ck]

Could this issue please reviewed?

Regarding to the manual the unit of light intensity is mV.
https://www.the-colliers.net/docs/public/guides%20&%20manuals/Zigbee%20Solar%20Rain%20Sensor%20User%20Manual.pdf

[dgibbs64]

I have re raised this issue as per the manual it is measuring mV not lux

[hipp0o]

How can illuminance be messured in "mV"? - this is bs even If the "manual" says something else.
So it was expected that z2mqtt throws an error now...

Logger: homeassistant.components.mqtt.entity
Quelle: components/mqtt/entity.py:159
Integration: MQTT (Dokumentation, Probleme)
Erstmals aufgetreten: 00:23:16 (1 Vorkommnis)
Zuletzt protokolliert: 00:23:16

Error 'The unit of measurement mVis not valid together with device classilluminance' when processing MQTT discovery message topic: 'homeassistant/sensor/0xa4c1380a3c17d253/illuminance/config', message: '{'availability': [{'topic': 'zigbee2mqtt0/bridge/state', 'value_template': '{{ value_json.state }}'}, {'topic': 'zigbee2mqtt0/Regensensor/availability', 'value_template': '{{ value_json.state }}'}], 'availability_mode': 'all', 'default_entity_id': 'sensor.regensensor_illuminance', 'device': {'hw_version': 1, 'identifiers': ['zigbee2mqtt_0xa4c1380a3c17d253'], 'manufacturer': 'Tuya', 'model': 'Solar rain sensor', 'model_id': 'RB-SRAIN01', 'via_device': 'zigbee2mqtt_bridge_0x84b4dbfffebc5ee1', 'name': 'Regensensor'}, 'device_class': 'illuminance', 'enabled_by_default': True, 'object_id': 'regensensor_illuminance', 'origin': {'support_url': 'https://www.zigbee2mqtt.io', 'sw_version': '2.7.1', 'name': 'Zigbee2MQTT'}, 'state_class': 'measurement', 'state_topic': 'zigbee2mqtt0/Regensensor', 'unique_id': '0xa4c1380a3c17d253_illuminance_zigbee2mqtt0', 'unit_of_measurement': 'mV', 'value_template': '{{ value_json.illuminance }}'}'

Pls revert changes. Or change device class or whatever.

[Mark-64]

I have the same error in HA now. Actually Z2M reports all 3 channels (illuminance/illuminance avg 20 / illuminance max) in mV, while HA report Illuminance as unavailable

[JackTalisker]

I have the same issue.
Maybe those values are not referred to the illuminance (measured in lux) but to the voltage provided by the solar panel.

[JoeyGE0]

Im having this too Error 'The unit of measurement mVis not valid together with device classilluminance' when processing MQTT discovery message topic: 'homeassistant/sensor/0xa4c138d345215214/illuminance/config', message: '{'availability': [{'topic': 'zigbee2mqtt/bridge/state', 'value_template': '{{ value_json.state }}'}], 'default_entity_id': 'sensor.outside_rain_and_light_sensor_illuminance', 'device': {'hw_version': 1, 'identifiers': ['zigbee2mqtt_0xa4c138d345215214'], 'manufacturer': 'Tuya', 'model': 'Solar rain sensor', 'model_id': 'RB-SRAIN01', 'via_device': 'zigbee2mqtt_bridge_0x9035eafffeaf10c5', 'name': 'Outside Rain and Light Sensor'}, 'device_class': 'illuminance', 'enabled_by_default': True, 'object_id': 'outside_rain_and_light_sensor_illuminance', 'origin': {'sw_version': '2.7.1', 'support_url': 'https://www.zigbee2mqtt.io', 'name': 'Zigbee2MQTT'}, 'state_class': 'measurement', 'state_topic': 'zigbee2mqtt/Outside Rain and Light Sensor', 'unique_id': '0xa4c138d345215214_illuminance_zigbee2mqtt', 'unit_of_measurement': 'mV', 'value_template': '{{ value_json.illuminance }}'}' Error 'The unit of measurement mVis not valid together with device classilluminance' when processing MQTT discovery message topic: 'homeassistant/sensor/0xa4c138d345215214/illuminance/config', message: '{'availability': [{'topic': 'zigbee2mqtt/bridge/state', 'value_template': '{{ value_json.state }}'}], 'default_entity_id': 'sensor.outside_rain_and_light_sensor1_illuminance', 'device': {'hw_version': 1, 'identifiers': ['zigbee2mqtt_0xa4c138d345215214'], 'manufacturer': 'Tuya', 'model': 'Solar rain sensor', 'model_id': 'RB-SRAIN01', 'via_device': 'zigbee2mqtt_bridge_0x9035eafffeaf10c5', 'name': 'Outside Rain and Light Sensor1'}, 'device_class': 'illuminance', 'enabled_by_default': True, 'object_id': 'outside_rain_and_light_sensor1_illuminance', 'origin': {'sw_version': '2.7.1', 'support_url': 'https://www.zigbee2mqtt.io', 'name': 'Zigbee2MQTT'}, 'state_class': 'measurement', 'state_topic': 'zigbee2mqtt/Outside Rain and Light Sensor1', 'unique_id': '0xa4c138d345215214_illuminance_zigbee2mqtt', 'unit_of_measurement': 'mV', 'value_template': '{{ value_json.illuminance }}'}'

My sensor has stopped reporting correctly. Illuminance showing state unavailable/unknown, maximum day average and average 20min seem to still function.

Either remove the invalid illuminance field or convert the raw mv value to a more helpful lux value.