I'm trying to read 6 digital inputs to see if their state changes. I have digital 2 to 7 inclusive held high or low: 2 = high 3 = high 4 = low 5 = low 6 = high 7 = low My code is very basic at the moment but I do not understand why the state of 7 is not displayed in Serial Monitor. int val …

Port Mapping

system October 24, 2011, 1:32pm 3

PaulS

Thanks for this.

If I change 7 to a high it shows up, great.

What should 0 & 1 be set to? Would xxxxxx01 setting TX to an output and RX to an input be correct?

Topic		Replies	Views
Pins over serial Project Guidance	14	1262	May 5, 2021
quick question abt digitalRead in a circuit Interfacing	5	1626	May 6, 2021
0017 Serial and port defining Bugs & Suggestions	3	1354	May 6, 2021
direct access of PORTD? Troubleshooting	5	2450	May 6, 2021
Using port register D Programming Questions	5	1118	May 5, 2021