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UG-2864 SSD1306 controller-based display Library
Oled display based on SSD1306 controller
PCD8544 controller-based display Library
Used for displays based on Philips PCD8544 controller such as those used in the mobile phones Nokia 5110 and Nokia 3310
I2C EEprom library
Used for interfacing with I2C EEproms up to 24LC1026
IO Expander Library
Used for interfacing with PCF8574 and PCF8574A
LCD HD44780 I2C
Used for displays based on Hitachi HD44780 controller or compatible controlled through a PCF8574 or PCF8574A IO Expander. Also Busy flag and backlight are controlled.