Connection of displays

Could anybody please help me to connect an Atmega328 with one of those displays and give an example code:
- PCD 8544
- Monochrome OLED SSD1306

The connection and code of the HD44780 was no problem but I can't find furthermore information about the other two displays...

Thank you very much

Hi.

There are some examples:
File Browser=>Examples

And there are loads of information in the internet, specially for Arduino, but you can use any example for Arduino uno with Atmega328.