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Some readings contain only 0 values (sonoff POW v2) #21

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Urs-Eppenberger opened this issue Sep 5, 2020 · 0 comments
Open

Some readings contain only 0 values (sonoff POW v2) #21

Urs-Eppenberger opened this issue Sep 5, 2020 · 0 comments

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@Urs-Eppenberger
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Urs-Eppenberger commented Sep 5, 2020

I created a minimal sketch to reproduce this using a sonoff POW v2 device. I attached a 25W purely resistive light bulb.
HLW8012_Basic_POW.txt

The readings are as follows:
(D) Active Power (W) : 26
(D) Current (A) : 0.10
(D) Apparent Power (VA) : 0
(D) Power Factor (%) : 100
(D)
(D) Active Power (W) : 0
(D) Current (A) : 0.00
(D) Apparent Power (VA) : 0
(D) Power Factor (%) : 100
(D)
(D) Active Power (W) : 26
(D) Current (A) : 0.10
(D) Apparent Power (VA) : 0
(D) Power Factor (%) : 0
(D)
(D) Active Power (W) : 0
(D) Current (A) : 0.00
(D) Apparent Power (VA) : 0
(D) Power Factor (%) : 0

Between the readings there is a break of 10 seconds. The sensor should not be overloaded.
Sometimes there are several readings with zeroes, until I get a correct reading again.
Does somebody have an idea, what I'm missing here?

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