Itead Sonoff Pow

[ThomDietrich]

I've just ordered a few Sonoff Pow. Schematics are available here. Looks good to be compatible. Are there any plans to integrate the new telemetry power consumption? I would be able to provide first data (as soon as they arrive) if needed.

[arendst]

I'll have to investigate but would like to support the Sonoff Pow too.

[arendst]

Just ordered one pow...

[ThomDietrich]

That's the spirit :D

[eazuka]

just ordered 2 and more planned. i will be following this issue to know progress as i want this support of Sonoff Pow too. i apprciate your efforts @arendst

I have also just ordered a couple of units and look forward to support of this module. Cheers, Mike.

[arendst]

Experimental support has been made available in version 2.0.5. I still need to test it with a real Pow as I haven't received mine yet.

[ThomDietrich]

Already a big step! Thanks man ;)
I'll be testing this as soon as I receive mine.

[eazuka]

good to know, thanks @arendst . what measurement details can be gotton from the Sonoff Pow support? apart from real power (watt) and kilowatt-hour (kWh), can things like voltage, frequency, reactive power be gotton as well?

[arendst]

With my implementation (2.0.5a in experimental repository) it has Voltage (V), Current (A), Current power (W), Power Factor, Period power (Wh) and daily power (kWh). I do not think frequency detection is possible.

17:50:18 MQTT: sonoff/TODAY_POWER = 0.256 kWh
17:50:18 MQTT: sonoff/PERIOD_POWER = 18 Wh
17:50:18 MQTT: sonoff/CURRENT_POWER = 999 W
17:50:18 MQTT: sonoff/POWER_FACTOR = 0.99
17:50:18 MQTT: sonoff/VOLTAGE = 221 V
17:50:18 MQTT: sonoff/CURRENT = 4.558 A

I'm eagerly waiting for my yet to be shipped Pow ...

[eazuka]

i owe you a beer man. good work

[arendst]

My Pow has shipped today.

[ThomDietrich]

I didn't receive mine yet. Happy Testing ;)

My units just shipped yesterday also.

[ThomDietrich]

Hey @arendst, mine still didn't arrive :-/ I already have one question. I looked through the source code and I didn't find changes in regard to when consumption data is send. Is it only send periodically?
I want to propose to additionally send data whenever power consumption changes by more than x Watts or when crossing certain ranges.
The described behavior is implemented by other power consumption measurement switches (e.g. Homematic HM-ES-PMSw1-Pl) and that's quite useful when observing for example a washing machine and it's phases. Btw. the Homematic device actually has a downside in this matter as it only allows one boundary value to be defined.
Thanks for your efforts! Please let me/us know how we can repay you ;)