Matrix user forums

Hi All!
I have bougth a KS0108 display. And I have made a very simple test program but did not manage to get it work. nothing happen on the display..

http://www.ebay.com/itm/191943363919?_t ... EBIDX%3AIT

I have checked the connection many time, and adjust the contrast and also update with Ben´s new update.

Has anybody here experience and tryed to us FC7 with this display? In that case, could you please check my simple program (config)

I use an Arduino Mega 2560

Thanks in advance.

Jorgen

Hello. I Test the Programm on a PIC ( i dont have AVR Lizenz). I change the "Transparent", in the Component Macro, from 0 to 1 - look at the second Picture.

Did you change the contrast higher? Is the display darker?
You need a potentiometer between Vout (Pin 18) and GND (Pin 1) and the grinder to Vo (pin 3), then you can change the contrast - Look at the first Picture

low contrast and high contrast

Hi Ressi!

Thanks for reply. Ok I see that you use the - 10V to the contrast, I have used the 5V pin. I Will try to change it later today.

You hear.

Br. Jorgen

Hi Ressi!

The problem was the contrast. I have used 5V and ground instead of -10V and ground as supply to potentiometer.

Thank´s for help-

Br Jorgen