Max cable length?

[Fredrick]

Thank you for your help.
I have now ordered this display http://www.sparkfun.com/commerce/pro...oducts_id=9568 and will come back whit some feedback when I have make some tests.

[Fredrick]

I just tried whit 9600 baud on a 11 meters shielded cable and it seems work well so far
I have no MAX232 on the sender side, I just connect the RX direct to PORTC.6

[Fredrick]

Update:
9600 Baud and a 15 meter long cat5 cable and it still working whit this code and TTL level signals direct from the PIC.

start:
SEROUT2 lcdtx,84,[254,1]
SEROUT2 lcdtx,84,[254,line1,dec counter," ROW1"]
SEROUT2 lcdtx,84,[254,line2,dec counter," ROW2"]
SEROUT2 lcdtx,84,[254,line3,dec counter," ROW3"]
SEROUT2 lcdtx,84,[254,line4,dec counter," ROW4"]
pause 500
goto start

counter is a long sized variable.

[ScaleRobotics]

Update:
9600 Baud and a 15 meter long cat5 cable and it still working whit this code and TTL level signals direct from the PIC.

Thanks a lot Frederick, very interesting. This is a good MythBusters episode, at least for me! You want to try another couple speeds, like 19200 and 38,400 (if the LCD has them)? Then you will have some pretty complete info for anyone thinking the same thing!

Walter