This is a simple driver for the SH1106 OLED screen. Most of the functions are similar to what is found in the various Adafruit libraries for similar components. I have also created some custom xbm fonts that work with this library. I used the Peter Fleury i2cmaster.h library to drive the i2c communication between the atmega328p and the SH1106 screen.
Quick summary of the main features of this library.
| Feature | Description |
|---|---|
| Screen rotation | Rotate the display by a 90, 180, 270 degree clockwise. |
| Text and Images | Draw text and images on the screen in different orientations. |
| Invert display | Options to invert the entire display or just a region of the display. |
| Draw shapes | Draw rectangles and circles on the display (filled or unfilled) |
Basic example of initialising the screen and drawing a string on the screen.
// Initialise i2c
OLED_init(); // Initialise the sh1106 oled screen
OLED_clear_buffer(); // Ensure the oled buffer is cleared when initialised.
// Draw string to the buffer. Position (0, 0), size 16 font, 2 pixel spacing between chars, and normal orientation.
OLED_draw_string("Hello world", 0, 0, 16, 2, 0);
OLED_display_buffer(); // Send the data in the buffer to the display.
For descriptions of the methods take a look at the function comments in the SH1106.c file.