5 ; port d 2 -> input (useless, default)
8 ; switch pull-up off (useless, default)
11 ; port d pin 6 -> output
14 ; port d pin 6 -> high
17 ; port d 3 -> output (debug 2)
24 ; trigger interrupt on rising edge
34 ; trigger interrupt on rising edge
44 ; trigger interrupt on falling and rising edge