Problems with Sonoff POW api calls and relay state change

[xoseperez]

Originally reported by: Geert De Pecker (Bitbucket: gedp, GitHub: gedp)

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Wondering if somebody else has the same problem: currently testing a couple of sonoffs for automation. They are not yet coupled yet to any mqtt server (waiting to be sure they are stable), but I'm polling the API to get the voltage, power, current with curl to get the measurements to my zabbix server. This is done approx every 5 min.

From time to time, I get a 0 voltage reading (without curl error, so value 0 returned). Also intermittently, the API is not responding.

Already changed the polling interval from 2 to 5 minutes. Helped a bit, but still having those problems.

Worse is that 2 or 3 times a day the relay just switches off by itself. When looking at the logs, this happens at times when I don't get replies from the API. At that time the sonoff seems down during 20 minutes.

I can exclude wifi range as they are just 2 meters away from the router.
Also only 4 wifi clients, so router should not be saturated.

Don't know if this could be a bug (running 1.7.1)? API part maybe not yet stable and causing reboots or alike? Possible external factor?

Would really appreciate hints.

PS: Don't know if this is the right place to put this. Somewhat more forum-like then issue.

Thanks for the good work,
Geert

[xoseperez]

Original comment by Geert De Pecker (Bitbucket: gedp, GitHub: gedp):

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Forgot: I'm also pinging the sonoff's every 30 sec and measuring roundtrip every 60 sec (now changed to respectively 60 and 180 sec). There I see that, during the timeframe I do not obtain a value from the API (and the relay turned off by itself), the connection is still there, no connection loss at all.

[xoseperez]

With 1.9.0 API calls return preprocessed current, voltage and power values.

[xoseperez]

Removing milestone: 1.8.4 (automated comment)