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QuickMik's Content

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#8101 Analog Input

Posted by QuickMik on 22 January 2011 - 02:36 PM in General Discussion

Hi all, does anybody know, how long the break between two readings from the ADC has to be. I do not know, if there has to be one. regards



#7961 Problem with Analog Input

Posted by QuickMik on 20 January 2011 - 12:01 AM in Netduino Plus 2 (and Netduino Plus 1)

Hi all ...

well I have the same problem but I was not able to solve it by using the ARef. As I understand the postings, the ARef thing is only relvant for boards prior Rev.B. Hope I'm right.

I was trying to read MEM gyro sensor values using the analog port. I've got a nearly stable reading for the neutral value of the sensor. The majority of measurements have correct values while some of them are wrong. Only for one step and always the same value.

Is there a way to avoid such a behaviour? If not, does anybody know a filtering to remove those artefacts?

Here are a some of my readings



U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:385 1.246V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:385 1.246V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:384 1.242V
U:385 1.246V
U:384 1.242V





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