I am measuring analog reading voltage with adc_1 39 pin.
I'm measuring interrupt rpm with 36 pins.
34 input 3.3v.
35 input 3.3v.
If 39.34.35 pins are energized. 36 pin produces wrong value.
39.34.35 pins if it connects to gnd it fixes it.
but i can't use 353439
how do i get over this