12864B3 V2.0 openGLCD library problem

hi all.

I have the LCD screen in the photo.
I can not use the pins in the OpenGLCD library. There is no charge for the CS1 CS2 pins.
please help.

http://alexshu.com/omg/wp-content/uploads/2014/04/dualsides.jpg

It looks like ST7920. It is easiest to use SPI mode. (with PSB pin).

You can use 4-bit parallel or 8-bit parallel if you are a masochist.

David.

openGLCD currently doesn't support that type of GLCD. Have a look at u8glib/u8g2

--- bill