v0.4.0

• Add graphic LCD drivers: LcdDisplay.ILI9486, LcdDisplay.ST7796
• Add touch drivers: LcdDisplay.XPT2046, LcdDisplay.GT911
• Deps: add :cvt_color for pixel conversions.

v0.3.0

• Add LcdDisplay.CharacterLcd as the main high-level API and move existing HD44780 character LCD code under it.
• Deprecate LcdDisplay.start_link/1 and LcdDisplay.execute/2.
• Support GenServer options and supervisor child specs via LcdDisplay.CharacterLcd.child_spec/1.
• Update dependencies, CI, examples and README for the new API and newer Elixir/OTP.

v0.2.0

• Remove registry and supervisor focusing on display-related code
• Rename top-level start_display function to conventional start_link

v0.1.3

• f1b6bc9 Support writing single char
• 2c336d9 Make WIFI optional in the example app

v0.1.2

Rename PCF8575 to PCF8574 because it was wrong

v0.1.1

Remove unsupported char command

v0.1.0

I did my best.

v0.0.21

Add SN74HC595 driver

v0.0.20

• f5a1f34 Rename LcdDisplay.Driver to LcdDisplay.HD44780.Driver
• 3d0209c Simplify four bit mapping
• 3153cb8 Factor out initialize_serial_bus function

v0.0.19

Factor out common module attributes and refactor