This package allows using an Adafruit character LCD and keypad kit on a Raspberry Pi from Haskell. Everything you need to use one of these LCDs is exposed in the System.Hardware.PiLcd module. The submodules are only exposed because they might be useful to reuse for other types of hardware, such as if you are using an MCP23017 port expander or an HD44780 display controller in some other context. But if you're using the Adafruit character LCD and keypad kit, all you need is System.Hardware.PiLcd.