What's this about pages in OLED display?

Using Arduino Displays
#1

I am writing to a 128x64 OLED

	u8g2.firstPage();
	do
	{

		/* Do Whatever */

	} while (u8g2.nextPage());

What is happening with firstPage and nextPage ?
Why do I have a loop?

#2

It is a trick to save RAM. It had been mandatory in u8glib and is now optional in u8g2.
Description is here: tpictureloop · olikraus/u8glib Wiki · GitHub

Oliver

#3

Thanks oliver

olikraus:
It is a trick to save RAM. It had been mandatory in u8glib and is now optional in u8g2.

Does that mean that instead of

	u8g2.firstPage();
	do
	{

		/* Do Whatever */

	} while (u8g2.nextPage());

I can just write

Do Whatever

olikraus:
Description is here: ...

That appears to be a description of what happens in u8glib. I can't see reference to the situation in u8g2. Is there an equivalent page?

#4

vagulus:
Does that mean that instead of

	u8g2.firstPage();

do
{

	/* Do Whatever */

} while (u8g2.nextPage());



I can just write

Do Whatever

With u8g2 yes, but (A) you need more RAM, (B) you need to use the F constructor and (C) you need to send the content of the frame buffer to the display with the u8g2.sendBuffer() command. Please have a look at the full buffer examples in the Arduino IDE.

vagulus:
That appears to be a description of what happens in u8glib. I can't see reference to the situation in u8g2. Is there an equivalent page?

I have not yet ported the page from u8glib to u8g2. But it is still the same concept, so the u8glib discription still applies.

Oliver

#5

All too complicated :fearful:

I'll stick with the old way 8)

Thanks

#6