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This module is ideally suited to interfacing with an LCD display in your project. It is compatible with the common 1602 and 2004 LCD modules (2004 LCD module included)with which it can be directly soldered onto. While drastically reducing the number of required connections the unit also features a potentiometer to control the contrast of the connected display. Communication is handled through a 2 pin I2C interface£¬ available on a wide range of microcontrollers. The I2C address of can be set by setting the available solder points for addresses in the range of 0x20 - 0x27.