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Topic: Difference between interrupt pin? (Read 221 times) previous topic - next topic

Bamanio

Hi,

I followed this Wind Speed project:
http://forcetronic.blogspot.com/2016/12/measuring-wind-speed-with-anemometer.html

On the Due, I expected to choose whatever interrupt Pin but found out that using PIN 2 gives totally different results than using PIN 8.

aren't they suppose to be the same on Due?

thanks

ard_newbie

#1
Mar 28, 2019, 08:27 pm Last Edit: Mar 29, 2019, 05:18 am by ard_newbie
AFAIk there should not be any difference, both are Schmitt trigger pins (page 12, Sam3x datasheet).

Did you try with pull down resistors on both ?

pert

What is the difference you're seeing? Are you saying you get different wind speed readings depending on which pin is used?

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