Newhaven Display Forum

Newhaven Products => OLEDs => Topic started by: jan.didden on January 26, 2016, 04:27:39 AM

Title: Control differences between LCD and OLED?
Post by: jan.didden on January 26, 2016, 04:27:39 AM
Hello, new here!

Asking for help: I have a circuit using an HND-0216K1Z-NSRGB LCD display on a PIC uC, works fine.
But when I replace the display by a NHD-0216KZW-AY5 (OLED), only the first line is shown, 2nd line remains blank.
As far as I can see there's no difference in the control codes.
Tried also another OLED (-AG5), same thing.
What could cause this?

TIA,

Jan Didden
Linear Audio
Title: Re: Control differences between LCD and OLED?
Post by: Saurabh_B on January 27, 2016, 03:40:27 PM
Hi Jan,

There are a few differences between these displays which would require a modification to the code used to drive them.

These displays do require up to 600Ás for commands to execute, vs the 37Ás required by the ST7066U Controller.
The initialization sequence is also different when using a 4-bit interface.

Would you be able to post your code to see if there are any changes that might need to be made for these displays?