http://hmario.home.xs4all.nl/arduino/LiquidCrystal_I2C/ -- Want to free up some ports of your Arduino but don't want to buy a new LCD? Try this: convert your parallel HD44780 compatible LCD to I2C with just a few components. All functions of the regular LiquidCrystal Library are supported (I think). The library also has aliases for most of the functions listed in the LCD API 1.0 by Dale Wentz
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