This project is a bit more complicated than some we have done recently. Adafruit makes a very nice LCD Keypad Shield, that unlike most of the others, has a 2 wire I2C interface (covers the lcd and the keypad), and a multi-color RGB backlight. This frees up 7 I/O pins over the typical LCD Keypad Shield. It comes in a kit, and all the components need to be soldered on the board. Fortunately Adafruit provides a very comprehensive tutorial that is easy to understand.
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