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ADC pins reading incorrect values
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ADC pins reading incorrect values

by dkanday on Wed Jun 16, 2021 4:21 pm

Hi,

I am using P0, P1 hooked up to a fingerprint sensor and P1 hooked up to a potentiometer. I am trying to use other ADC pin in order to compare a voltage value with a reference input voltage value. Whenever I use pin P10/P4/P3, the output of the data at P2 changes. I am using alligator clips for P0,1,2 and just a simple wire to connect to P10/4/3. Is there a possibility that the pin P2 is reading an incorrect value when i connect a wire to P10/4/3 related to miller capacitance? or is there something trivial that I am missing?

dkanday
 
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Joined: Mon Jun 07, 2021 4:49 pm

Re: ADC pins reading incorrect values

by blnkjns on Sun Jun 20, 2021 9:14 am

Do you have a picture/sketch of your layout?

blnkjns
 
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Please be positive and constructive with your questions and comments.