This is a small library to drive an LCD matrix via the I2C bus that I ported from the Arduino code..
It will drive a 20x4 matrix like this: http://www.ebay.co.uk/itm/190637600054 commonly used by Arduino and should also work with 16x2 etc.
This LCD module includes a PCS8574n I2C interface with a HD44780 matrix driver.
It needs just the two pins for the I2C and can work with the i2c_master or i2c_simple xmos modules.
It is tested and working on the above display.
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