bitbank2/oled_turbo

An experiment to push the limits of the SSD1306 through bit banging on Arduinos

oled_turbo's Issues

speed issue, some OLED types

I have been using this quite a lot the last weeks,
I found some displays dont like this type of high speed.
Solution :
search for any CLOCK change in the first few functions, and add a nop like this
now all displays works

I2CPORT = bOld & ~(1 << BB_SDA); // set data low
nop; // added a NOP on each side of any clock handeling in the code
I2CPORT |= (1 << BB_SCL); // toggle clock
nop; // added a NOP on each side of any clock handeling in the code
I2C_CLK_LOW();

Compiling for attiny85

Hi,

tried unsuccessfully compiling the sample code for attiny85.
I2CDDR and PORTD are undefined, and the global variables use over 200% of the 85's memory.

Since you've already run it on the 85, there must be something I'm missing?

How to change/add new font?

Hi the library works very well , but i would like add new font to the library. Can you please provide instructions for that

FONT size 2 overlab

when using font size 2 (the largest type)
it write some black lines on top of the text ??
this overlab with first line, in case you like to write two lines using the largest font.

oledWriteString(0,0,"THISDONT",2,0);
oledWriteString(0,3,"WORK :-)",2,0);

The work a round:

oledWriteString(0,3,"WORK :-)",2,0);
oledWriteString(0,0,"THIS ",2,0);

See here I write bottom line first, so the top line will over-write the black line

The correct solution, is to figure out how not to write some black lines over the text
this will also alow usage better of the top of the display

(please some one : also add a 3 rd font size ? so we can have 3 lines of large text using the entire height of the display)
size 2: only alow two lines of 8 chars. but this is very readable, even from distance, in case you dont need to display so much