Reporting Interval for Sonoff SNZB-02 Temperature & Humidity Sensor

[nanobra1n]

Bug Report

What happened

I got a Sonoff SNZB-02 Temperature & Humidity Sensor. It paired fine and was identified as an eWeLink RHK08. The problem I am having (unless this is by design) is that it reports new values every 10 s. I can mitigate this slightly by setting the temperature & humidity precision to 1 decimal, but even then it takes at most 20 seconds for a new value to be reported.

What did you expect to happen

Behavior similar to my Xiaomi sensors, which report values much less frequent.

How to reproduce it (minimal and precise)

Debug Info

Zigbee2mqtt version: 1.14.0
Adapter hardware: CC1352P-2
Adapter firmware version: 'type': 'zStack3x0', 'meta': {'transportrev': 2, 'product': 1, 'majorrel': 2, 'minorrel': 7, 'maintrel': 1, 'revision': 20200417}}

[Koenkk]

In devices.js can you try changing

temperature: async (endpoint) => {
    const payload = [{
        attribute: 'measuredValue',
        minimumReportInterval: 0,
        maximumReportInterval: repInterval.HOUR,
        reportableChange: 25,
    }];
    await endpoint.configureReporting('msTemperatureMeasurement', payload);
},

to

temperature: async (endpoint) => {
    const payload = [{
        attribute: 'measuredValue',
        minimumReportInterval: 5,
        maximumReportInterval: repInterval.HOUR,
        reportableChange: 100,
    }];
    await endpoint.configureReporting('msTemperatureMeasurement', payload);
},

After that restart zigbee2mqtt and reconfigure the device via https://www.zigbee2mqtt.io/information/mqtt_topics_and_message_structure.html#zigbee2mqttbridgeconfigure (make sure to wake up the device before executing this).

If that doesn't help, try increasing the reportableChange further to e.g. 500.

See https://www.zigbee2mqtt.io/how_tos/how_to_support_new_devices.html on how to modify devices.js

[nanobra1n]

The reconfiguration of the device keeps failing with:

error 2020-06-26 17:10:58: Failed to configure 'Sonoff LR', attempt 1 (Error: Bind 0x00124b001b783e4a/1 msTemperatureMeasurement from '0x00124b001ca5cb1c/1' failed (Error: AREQ - ZDO - bindRsp after 10000ms)
    at Endpoint.<anonymous> (/zigbee2mqtt-1.14.0/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:255:23)
    at Generator.throw (<anonymous>)
    at rejected (/zigbee2mqtt-1.14.0/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:6:65))

so whatever change I made apparently didn't take. I see no different behavior

[Koenkk]

@nanobra1n did you wakeup the device before doing this? (by clicking a button on it)

[nanobra1n]

I thought I did, but I tried again and apparently once per second just wasn't enough, I had to press faster than that to get the device configured, but not too fast. The sweet spot was about twice a second. Unfortunately even going up to reportableChange: 1000 didn't help much. However looking at the reported data, it appeared temperature was the wrong tree to bark up to. While the reported temperature in consecutive measurements is pretty stable, the reported humidity is fairly noisy (+- 0.8%).

So in addition to

  temperature: async (endpoint) => {
    const payload = [{
        attribute: 'measuredValue',
        minimumReportInterval: 5,
        maximumReportInterval: repInterval.HOUR,
        reportableChange: 100,
    }];
    await endpoint.configureReporting('msTemperatureMeasurement', payload);
},

I also changed

    humidity: async (endpoint, min = 10, max = repInterval.HOUR, change = 10) => {
        const payload = [{
            attribute: 'measuredValue',
            minimumReportInterval: min,
            maximumReportInterval: max,
            reportableChange: change,
        }];
        await endpoint.configureReporting('msRelativeHumidity', payload);
    },

to

    humidity: async (endpoint, min = 10, max = repInterval.HOUR, change = 100) => {
        const payload = [{
            attribute: 'measuredValue',
            minimumReportInterval: min,
            maximumReportInterval: max,
            reportableChange: change,
        }];
        await endpoint.configureReporting('msRelativeHumidity', payload);
    },

and that calmed down things a lot (now ~ 1 minute between reported values)

[Koenkk]

1 minute is still a lot I think, can you try increasing it further?

[nanobra1n]

When I leave the sensor alone and don't breathe on it as much I get several minutes between reports now.

[Koenkk]

Good, can you make a PR?

[Koenkk]

Merged, assuming this can be closed.

[sergimola]

I actually need for SNZB-02 to report much more frequently than it is doing it now.
Is there a way to configure this so it reports data more frequently?
Thanks.

[Snakesms]

I actually need for SNZB-02 to report much more frequently than it is doing it now.
Is there a way to configure this so it reports data more frequently?
Thanks.

I just managed to do that easily, thanks to this PR:
There are 2 values that can/should be tuned, as example:

await configureReporting.temperature(endpoint, {min: 5, max: repInterval.MINUTES_15, change: 20});
where "MINUTES_15" scraping interval
and
change: 20 is 0.2 degrees difference
I suppose whatever changes faster

[sergimola]

I actually need for SNZB-02 to report much more frequently than it is doing it now.
Is there a way to configure this so it reports data more frequently?
Thanks.

I just managed to do that easily, thanks to this PR:
There are 2 values that can/should be tuned, as example:

await configureReporting.temperature(endpoint, {min: 5, max: repInterval.MINUTES_15, change: 20});
where "MINUTES_15" scraping interval
and
change: 20 is 0.2 degrees difference
I suppose whatever changes faster

Thank you! That was helpful.

[Zoolombo]

Hello!
I have a problem. My sonoff SNZB-02 is't measuring humidity.
I try re-join, but no result...
Battery, temperature, linq is Ok.
I haven't any idea have fix this.

zigbee2mqtt version 1.17.1 commit: unknown
coordinator type: zigate
coordinator revision: 31e
frontend version: 0.3.2