ADC pins reading incorrect values

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

ADC pins reading incorrect values

Post by dkanday »

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?

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blnkjns
 
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Joined: Fri Oct 02, 2020 3:33 am

Re: ADC pins reading incorrect values

Post by blnkjns »

Do you have a picture/sketch of your layout?

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