Adding Power Measurement to SSM-U01

[mvjt]

Also discovered power reporting. Adding support for it. Sorry I did not see this last time. This is my first added device :-)

I do have a question, it basically sends updates every few seconds. I'm trying to throttle to maybe a certain value delta using
await configureReporting.activePower(endpoint, {max: 600, change: 4});
But I don't understand how the "max/min/change" value correlates to the W and time...

Ultimately, it would maybe be beneficial to allow this to be customized by the user depending on the load. But I'm concerned the Zigbee network will be flooded with these messages...

Zigbee2MQTT:info  2020-10-15 22:40:56: MQTT publish: topic 'zigbee2mqtt/0x04cf8cdf3c8e18fe', payload '{"energy":0.02,"linkquality":0,"power":27.9,"state":"ON"}',
Zigbee2MQTT:info  2020-10-15 22:40:51: MQTT publish: topic 'zigbee2mqtt/0x04cf8cdf3c8e18fe', payload '{"energy":0.02,"linkquality":0,"power":28,"state":"ON"}',
Zigbee2MQTT:info  2020-10-15 22:41:09: MQTT publish: topic 'zigbee2mqtt/0x04cf8cdf3c8e18fe', payload '{"energy":0.02,"linkquality":0,"power":27.9,"state":"ON"}',
Zigbee2MQTT:info  2020-10-15 22:40:38: MQTT publish: topic 'zigbee2mqtt/0x04cf8cdf3c8e18fe', payload '{"energy":0.02,"linkquality":0,"power":27.9,"state":"ON"}'

[Koenkk]

I would start with min: 5, max: 600, change: 1 . If that provides updates even when power didn't chagne every 5 seconds, start multiplying the change by 10. So start with 1 -> 10 -> 100.

Make sure to reconfigure the device via https://www.zigbee2mqtt.io/information/mqtt_topics_and_message_structure.html#zigbee2mqttbridgeconfigure every time you change configure().

[mvjt]

I would start with min: 5, max: 600, change: 1 . If that provides updates even when power didn't chagne every 5 seconds, start multiplying the change by 10. So start with 1 -> 10 -> 100.

Make sure to reconfigure the device via https://www.zigbee2mqtt.io/information/mqtt_topics_and_message_structure.html#zigbee2mqttbridgeconfigure every time you change configure().

Done, {min: 5, max: 600, change: 10} provided the best balance...I´ve commited the change. Thanks for the lesson...

[Koenkk]

Thanks to you too!

[lglw]

This does not work
Koenkk/zigbee2mqtt#9531