[oopic] Re: UVTron Question

--- In oopic@yahoogroups.com, "jon_mark_go" <jonmarkgo@...> wrote:
>
> So any I/O 1-7 would be good to be safe? Or can I really use any 1-31?
>

Just what it says: any of the 31 IOLines.

As a practical matter, leave lines 1..7 for A/D, use 8..15 for inputs
because you can turn on internal pull-up resistors (OOPic.PullUp =
cvTrue) and do outputs with 16..31 leaving IOLines 22 & 23 for the
serial port.

To protect the sensor and the OOPic, you can put a 330 ohm resistor in
series with the input connection. This may help prevent a disaster if
you happen to set the selected IOLine as output accidentally.

Richard

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