SSD1306 - Microesque

Platform independent C library for monochrome OLEDs based on SSD1306 driver.

Setup guide includes STM32 (HAL Library) and PIC16/18 (MCC Library) examples.

Features:

Library with only one .c/.h pair.
Library with only static memory allocations.
Requires minimal setup with a single callback function.
Supports unlimited number of displays.
Provides all hardware commands.
Includes graphical functions (circle/line/rectangle/etc.).
Includes extra buffer functions (shift/rotate/mirror/etc.).
Includes character drawing (printf and lower memory alternatives).
Includes custom characters and image drawing.

Limitations:

Only supports communication via I2C.
Only supports 128x64 and 128x32 displays.
No included fonts; supports Adafruit-GFX-Library font format.

Full Setup Guide & Documentation