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WWW Server
IP:
File: io.html

IO mapping:

J2 -> GPIO -> io.num
#5 -> P0.0 -> 1
#6 -> P0.1 -> 2
#7 -> P0.2 -> 3
#8 -> P0.3 -> 4
#9 -> P0.4 -> 5
#10 -> P0.5 -> 6
#11 -> P0.6 -> 7
#12 -> P0.7 -> 8

There is no explicit direction control.
To "measure" an external signal applied to a GPIO line,
set this line to HIGH first, then read the state of the pin.
It is OK to drive the pin LOW externally when the pin outputs HIGH internally.

Checked - HIGH, Unchecked - LOW
>P0.0 >P0.1 >P0.2 >P0.3 >P0.4 >P0.5 >P0.6 >P0.7