Sensebender Micro - Abnormal power consumption
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 ?
A broken radio?
Nice try but removing the radio was part of my tests (especially with Sketch J).
Has it been exposed to extreme humidity or something else external that could cause this?
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.
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).
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.