reading dipswitches (revisited)

Archiver

Thank you all for the reponses to my previous post, but I just
realized I might be hooking it up wrong from the start....
I have one side of each dipswitch hooked to its own i/o pin (set to
input) and the other side set to ground. Won't that do...nothing at
all? It seems to me that I have it hooked up in a way that there
isn't any current to flow into those input pins, to be detected.
Should I instead have one end of each switch connected to an INPUT pin
and the other and connected to an OUTPUT pin?

And if so, can I connect all four to the SAME output pin?

thanks again,
--Alex

Archiver

Alex,

You'll need some pullup resistors on your input pins to make the input
high when the dip switch isn't closed to ground. 10k should do.

HTH.
Mos.

--
84 AE86, 90 ST185GrpA, 91 MX83Gr, Sydney, Oz.

On Fri, 7 Mar 2003, atl_guy1138 wrote:

> Thank you all for the reponses to my previous post, but I just
> realized I might be hooking it up wrong from the start....
> I have one side of each dipswitch hooked to its own i/o pin (set to
> input) and the other side set to ground. Won't that do...nothing at
> all? It seems to me that I have it hooked up in a way that there
> isn't any current to flow into those input pins, to be detected.
> Should I instead have one end of each switch connected to an INPUT pin
> and the other and connected to an OUTPUT pin?
>
> And if so, can I connect all four to the SAME output pin?
>
> thanks again,
> --Alex