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Forum Index : Microcontroller and PC projects : Self calibration of voltage divider
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TassyJim Guru  Joined: 07/08/2011 Location: AustraliaPosts: 5914 |
I would like to see the readings without the 'mite going to sleep in-between Or sleep then wake up, read immediately and then after 2 seconds without sleeping for a few readings. That will show if it is a problem with warming up or voltages stabilizing. Jim VK7JH MMedit MMBasic Help |
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OA47 Guru Joined: 11/04/2012 Location: AustraliaPosts: 911 |
Jim, I got back into the shed and had intentions of both implementing a large pause after waking from sleep and not putting the Micromite to sleep at all, to see if that had any affect on the accuracy of the readings after the calibration code. Using the same mite and setup, I ran the calibration routine and guess what?  The reading was 0.08V out at 14.00V and 0.04V out at 10.00V. It seems that the slope reading did not change much but the offset did (from 0.71V to 0.2V) Still not sure why, but the result is much better. I will re-visit in a day or so and see if there is any change. Regards Graeme |
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