Sensebender Micro - Abnormal power consumption
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Hello all,
I have been facing some power saving issues lately with one of my (numerous) Sensebender micro boards.
Whilst they all use a mere 27µA during sleep, one of them is using between 400 and 700 µA.
Of course, I have tried the famous Sketch J to see if this was not related to some software issue, but the result was the same.
I have cleaned the contact and everything using some alcohol but it does not change anything either.
Any idea there ?QQ.
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Nice try but removing the radio was part of my tests (especially with Sketch J).
Qq.
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No, not at all. Actually, it sits on one of my bookshelves. It has been there for a while.
I thought for a long period that the battery drain was due to some software issue until I conducted some deep analysis.Qq
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very strange!
pics of your board? And what do you use to measure current ? -
Here are some photos (frontside and backside). I use a regular multimeter to monitor the current (serial through the battery power).
QQ.
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Here are some photos (frontside and backside). I use a regular multimeter to monitor the current (serial through the battery power).
QQ.
Hi @qqlapraline , I experience the same issue. I've already built door sensors + Temp + humidity with a pro mini 3.3v and it working since 7 months with the same 2AA's.
I've done the same with the sensebender micro and in 2 weeks the battery are ko. I send temp/hum every 5 min, use sleep and interrupt for the door sensor. -
I've found it...Yep, several months later, I've found it.
Actually, there were some ghost connections. I have cleaned the different soldering flows using an Exacto. Furthermore, I have re-done the connection (to the NRF and the batteries) using a pump...
And...tadah ! now the sleep current consumption is around 25µA.;)
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I've found it...Yep, several months later, I've found it.
Actually, there were some ghost connections. I have cleaned the different soldering flows using an Exacto. Furthermore, I have re-done the connection (to the NRF and the batteries) using a pump...
And...tadah ! now the sleep current consumption is around 25µA.;)
@qqlapraline so bad soldering caused this ?!
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If « bad soldering » means some imperfections left unfortunately considering my close-to-perfection soldering skills..I would have to say yes..:)
That, or oxydation or any other issue.
Qq.
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If « bad soldering » means some imperfections left unfortunately considering my close-to-perfection soldering skills..I would have to say yes..:)
That, or oxydation or any other issue.
Qq.
@qqlapraline said in Sensebender Micro - Abnormal power consumption:
close-to-perfection soldering skills
I've seen much worse:
:grimacing:
http://yveaux.blogspot.nl
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@qqlapraline said in Sensebender Micro - Abnormal power consumption:
close-to-perfection soldering skills
I've seen much worse:
:grimacing:
@Yveaux, thanks for your support ;)
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@qqlapraline said in Sensebender Micro - Abnormal power consumption:
close-to-perfection soldering skills
I've seen much worse:
:grimacing:
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