please help how to read the displayed data in LCD?

Thread Starter

chychy1

Joined Jan 9, 2012
2
we were trying to display data in lcd using parallel cable port to display the id number from our system., the problem is., we also need to get that displayed numbers to the 7 segment and multiplex it., does anyone here knows how to read the data from the lcd 16x2?
 

spinnaker

Joined Oct 29, 2009
7,815
we were trying to display data in lcd using parallel cable port to display the id number from our system., the problem is., we also need to get that displayed numbers to the 7 segment and multiplex it., does anyone here knows how to read the data from the lcd 16x2?
Well you know what data you are displaying to the LCD. Why not display that same data on the 7 segment? Why do you need to read the LCD to get it?
 

ErnieM

Joined Apr 24, 2011
7,991
we were trying to display data in lcd using parallel cable port to display the id number from our system., the problem is., we also need to get that displayed numbers to the 7 segment and multiplex it., does anyone here knows how to read the data from the lcd 16x2?
What display driver? HD44780 compatible?

Are your driving RS?

4 or 8 data lines?
 
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