With the TKLCD module you can write text on the module’s screen in a few minutes. It has an LCD display on board and it requires a dedicated software library that is available here.
The LCD can be used like a regular module by plugging it into the TinkerKit! shield or as an independent component; it has in fact a microcontroller and a USB port on board that make it a fully-fledged LCD-shaped Arduino Leonardo.
Resources:
- Schematics
- ATmega34U2 Datasheet
- TinkerKit LCD Driver
- Library and Examples
- Tutorials