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MightyHat / Re: MightyHat sense power outage
« Last post by Lukapple on Today at 09:02:40 AM »
Thanks for the hint Felix. Iíll check out that post.
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MightyHat / Re: MightyHat sense power outage
« Last post by Felix on Today at 09:00:19 AM »
Luka,
If you look at the schematic, there is a battery monitor on A7, which reads VUSB or VBAT. When power is lost the reading should be around 4.2v or lower. When on USB it should be higher than that.

Please also see this thread where this is also discussed how to make the difference between different power input.
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Low Power Techniques / Re: Single Diode Temperature Readings with the ICU
« Last post by EdM on November 09, 2019, 12:54:59 PM »
I should add a note here about the system oscillators. The ICU timing methods have trouble with temp compensation on the main system clock. So the diode methods fails on a RocketScream Mini Ultra because it's temp compensation kicks in at 20C - dramatically changing the main clock frequency, and creating a fierce discontinuity in the data. Not sure if that applies to the moteinos, but it's something to watch out for with any time based method.  While the clone board clocks are affected by temp, the effect is smoothly absorbed by the S&H constants.
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MightyHat / MightyHat sense power outage
« Last post by Lukapple on November 08, 2019, 10:06:56 AM »
I'm running RPI4 with MightyHat and battery backup.
Is there any way to detect power outage?
I want to create a dummy gateway node, which will log power outage events.
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Moteino / Re: Moteino sleep issues
« Last post by Felix on November 08, 2019, 09:46:23 AM »
Yes I suggest watching some YT videos on how to do it. Various phone repair shops shows this done on smartphone mother boards, to get corrosion and water damage off, or just cleaning flux after repairs.
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Moteino / Re: Moteino sleep issues
« Last post by malik on November 08, 2019, 09:35:58 AM »
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Moteino / Re: Moteino sleep issues
« Last post by Felix on November 08, 2019, 09:24:02 AM »
Ultrasonic cleaning.
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Moteino / Re: Moteino sleep issues
« Last post by malik on November 08, 2019, 09:05:09 AM »
Question is, how do we remove corrosion from a RF module, to see if the corrosion is the cause of higher current.
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Moteino / Re: Moteino sleep issues
« Last post by TomWS on November 08, 2019, 08:30:10 AM »
FWIW, I have found that CorrosionX, mentioned in previous posts on this forum, works extremely well at preventing corrosion.  I have tried lacquers, potting, and various other methods, but have found this the most effective of all methods.  It's messy, yes, but that's one of its benefits - it seeps into every crevice to seal against moisture.

As an extreme example, I have one device, which is a dosing pump to dose my man-made stream with algaecide, where I have an ESP8266 and various other electronics in the same enclosure as the pump.  I had liberally coated the circuit boards and motor contacts when I assembled it and it has been operating reliably for the last two years.  I was stunned, when I went to refill the tank at the end of summer to discover that the tubing fittings had leaked and the circuit board was actually partially covered in liquid (either condensation or algeacide, I don't know), but it was still operating without any sign of corrosion.  Now THAT is protection!
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Moteino / Re: Moteino sleep issues
« Last post by malik on November 08, 2019, 06:27:43 AM »
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