Arduino TinkerKit 16x2 Text LCD Module Shield T110061
With the TKLCD module you can write text on the module's screen in a few minutes. The software that makes this module function is open-source and available online, so you can create dozens of applications based on it. Best of all, this handy device is based on a microcontroller compatible with the ARDUINO software, so you can easily reprogram it using the free ARDUINO IDE. You can also use this module to attach an LCD display to your computer, to show information even when the main screen is off.