Problems with LCD and Arduino

Forum 2005-2010 (read only) Hardware Troubleshooting
1

Forgive me but I am a noob!
I have followed this tutorial exacty...

http://www.ladyada.net/learn/arduino/lcd.html

and I cannot get this to work. The LCD that I purchased is GDM1602, but it is the white on blasck one

I can get the power working correctly because when I move the Potentiometer all the way I can see the white squares. Could it be that I have to connect something special because it is the black model? Pin 16 in the datasheet says "Power Supply for BKL (0V)" but I don' know what to connect there.

I have also tried a cople other configurations with no luck. Can someone please kick me in the right direction.

Any help would be greatly appreciated... Thanks in advance.

2

I finally figured it out!

Well after about 3 hours later and reading through every Forum around I realized that if you make changes to the .cpp files you need to recompile by deleting the .o file and restarting the arduino IDE and it "recompiles" (I think).

Sorry I can't find the site that gave me this suggestion, so I coulde give the proper credit... :frowning: