LUMEX - LCM-S01602DSF/C LCD4BitLibrary

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi!

I've just bought a LUMEX - LCM-S01602DSF/C (datasheet), and I'm having some problems using it.
I try to use the LCD4BitLibrary, because I believe the build it with a Samsung S6A0069 controller. As I power on my Arduino the LCD displays black rectangles in the first row, so Vss, VDD, and V0 seems to be connected well. The RW is grounded, and the correct pin numbers are assigned in LCD4Bit.cpp to RS, E and DB4-7.
Still when I run the example program the LCD does not get initialised, it only displays the black rectangles in the first row and not any text.

Does anybody have experience with S6A0069 controllers? I'm begining to think that my device is broken. Is there a way to make sure about it?

Thanks for your help!

2

My experience is that almost all LCD problems are with the connections or contrast. Sounds like the contrast is ok, so double check the wiring and make sure that the connections for each and every pins match the pin numbers in your code.

Good luck!

3

Thanks mem!
I'll double-triple-quadruple check the pins again.

4

It turned out that I did something wrong, because it is now working with 8 and 4 bit interface as well, using the LiquidCrystal library.