On Monday 01 September 2003 08:48, Olin Lathrop scribbled:
> You're making this way too complicated.  Just turn on the internal pull=
ups
> when you want to read the switches and tie the other end of the switche=
s
> to ground.  This even frees up RA5.  (Where did you find such a hairbra=
in
> design in the first place?)

Nope.  I can't.  The RB outputs here control the columns of 7-seg LED=20
displays, which is why they go to the MOSFET gates.  If I just shorted a=20
switch between an RB output and ground, then the output will be forced lo=
w=20
all the time when the switch is pressed.

Cheers,
-Neil.

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