HD44780 VFD Wiring

FormatC: · Post by **FormatC:** » January 17th, 2007, 4:32 am

I already know how to wire the VFD (LCD HD44780 Compatible) but what is the maximum length of the cable I can make for my display. I'll be using flat ribbon cable

Post by **IFR** » January 17th, 2007, 6:43 am

I'm using an old 6ft printer parrallel cable and it works just fine

.

Post by **limbo** » January 17th, 2007, 8:13 pm

Consider this as a standard parallel connection...

30 ft about 10m

Some info here http://duxcw.com/faq/print/print.htm

Post by **caesar** » January 18th, 2007, 10:20 am

I have used 16 lines on flat ribbon cable up to 1m-1.5m lenght, then it could be possible to get the display scrambled in a very noisy environment.
BUT if you can use a wider cable try routing the ground line between every signal line. This solved my problem and now I use a 3,5m flat ribbon cable.

First try just routing the necessary lines to your desired lenght and if you have problems, route more ground lines between the data lines.