Hello all, I'm hoping this is as simple as a flat battery. The RTC on my Adafruit Datalogger shield lost 15 minutes overnight. The shield is logging data from two thermocouple breakout boards saving the data to SD and sending it out over serial to the PC where the GoBetwino beta is logging the feed to a text file. If the Arduino is left unplugged for a day the RTC forgets the time and has to be reset. I left the datalogger running overnight as the experiment it is logging from needs to run for 30hrs and so this was a test to see if it performed. This morning it was still logging but the timestamps on the logs were 15 minutes slow.
Can anyone tell me what the cause might be & how to remedy it?
Many thanks,
RTC not keeping accurate time & forgetting time
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4 posts • Page 1 of 1
RTC not keeping accurate time & forgetting time
by scary » Thu Apr 19, 2012 7:27 pm
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Re: RTC not keeping accurate time & forgetting time
by adafruit_support_bill » Fri Apr 20, 2012 4:44 am
It could be a low battery. Check the voltage.
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adafruit_support_bill - Posts: 16048
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Re: RTC not keeping accurate time & forgetting time
by scary » Thu Apr 26, 2012 10:11 pm
Hello, thanks for your reply. Voltage is 3.2 so probably not a flat battery. I thought I did a pretty good job of soldering it together but will go back and look for errs.
S
S
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Re: RTC not keeping accurate time & forgetting time
by adafruit_support_bill » Fri Apr 27, 2012 4:38 am
If you post photos, we'll take a look too.
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adafruit_support_bill - Posts: 16048
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4 posts • Page 1 of 1
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