In general, the sketch shows the A0 to A5 on a multiplexer that connects to the only ADC. One digital input is connected to the ADC. On the other hand, some description is telling, the A0..A5 can also serve as equal digital pin 14 to 19. This is not possible with the usual representation of the …

The usual sketch of the MUX for A0 to A5 possibly wrong?

MartinHill October 12, 2021, 8:07am 4

Hello,

Thanks a lot for clarification!

Martin