--- In "naturalwatt" <> wrote:
> What's the best way of extending the distance to
> about 10 or 20 metres? I can think of loads of
> ways of doing it, but I'm interested to see if
> anybody can suggest a cheap and simple way.
Use an RS232 line driver, something inexpensive like a MAX line
driver. The DIO outputs can be tied to the RS232 line driver's inputs,
conveyed a long distance as RS232 12 to 15 volts to another RS232 line
driver's input. The output from that can go to your display. And the
RS232 line driver's handle high clock rates, much higher than you're
using, I'm sure, so that shouldn't be a problem.
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