SSD1306 OLED display driver  1.4.12
This library is developed to control SSD1306/SSD1331 RGB i2c/spi OLED displays and spi PCD8544 LED display
src/hal/README.md
1 This directory contain platform specific implementation of hardware abstraction layer.
2 
3  * arduino dir: for all Arduino platforms (if you use Arduino IDE)
4  * avr dir: for plain avr-gcc environment
5  * esp dir: for plain esp8266/esp32 environment