Author Topic: Device Battery Voltage  (Read 313 times)

millennial

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Device Battery Voltage
« on: October 06, 2016, 08:13:04 pm »
My mc-Module 120 reports 2660 for Device.BatteryVoltage, yet when I use a digital multimeter on VDD and GND pins I read 2.96V. My multimeter seems to read 0.3V higher than the device.

Does anyone experience similar behavior with battery voltage?

Also (done with a different battery), does calling Device.BatteryVoltage substantially drain the battery? I ran a mc-Module 120 for only 12 days before the 3V CR2032 battery died. Granted, the battery may have been used for several firmware updates and is several months old, but it reported 2.865V 6 days ago. This mc-Module 120 reported temperature every 5 minutes and Device.BatteryVoltage every 1 day.
« Last Edit: October 06, 2016, 08:18:26 pm by millennial »

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mc-T2

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Re: Device Battery Voltage
« Reply #1 on: October 07, 2016, 09:23:58 am »
Hey Millennial,
just to make sure everything is good, can you post your code that you are using?
Also, have you made any other modifications to the module (any soldering work or attached sensors/devices?)
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millennial

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Re: Device Battery Voltage
« Reply #2 on: October 08, 2016, 02:11:17 pm »
No soldering or modifications were made to the mc-Module 120.

I'll send a message to you with the code.

Nick_W

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Re: Device Battery Voltage
« Reply #3 on: October 19, 2016, 10:00:16 pm »
Interesting,

My new 120 modules seem to be using batteries faster than my original 110 modules. I have 110's still on their original batteries (2-3 months continuous running), but I've had to replace both 120 module batteries, after 2 weeks.

I'll keep an eye on this.

mc-John

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Re: Device Battery Voltage
« Reply #4 on: October 20, 2016, 10:48:29 am »
The mc-Mod120 has a hardware floating point processor and under curtain circumstances it prevents the processor going to sleep. We have solved it but it requires more testing so we haven't send it out yet.
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Nick_W

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Re: Device Battery Voltage
« Reply #5 on: October 22, 2016, 07:50:39 pm »
Any updates on this? my 120 modules (2 of them) have consumed all my coin cells, and I dont want to waste any more.

Im back to my 110 modules for now.

mc-John

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Re: Device Battery Voltage
« Reply #6 on: October 24, 2016, 09:45:32 am »
We are still working on it