Changes by last author:
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As Analog in CH2 is a pulled up input, connect 10k or more like in the drawing above, or use an analog input without pullup but in this case connect +5V to the non connected pin of the potentiometer. |
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As Analog in CH2 is a pulled up input, connect 10k or more like in the drawing above, or use an analog input without pullup but in this case connect +5V to the non connected pin of the potentiometer. |