16x2 LCD Interfacing with Raspberry Pi using I2C/Pi4J/JAVA

This project interfaces a 16x2 LCD by using a MCP23017 16-bit input/output port expander IC with the Raspberry Pi by I2C interface. To interact with the IC here we have used Pi4J and JAVA.

MCP23017 Features:

• 16-bit input/output port expander with interrupt output

• Cascadable for up to 8 devices on one bus

• 25mA sink/source capability per I/O

• Supports 100kHz, 400kHz and 1.7MHz I2C™ compatible modes

• Intro Visual Source

• MCP23017 Details

Links

• I2C Communication on Pi

• 16x2 LCD with Pi

• Java Application on Pi Playlist

• Schematic

• Pi4J GPIO Numbering

• Download Pi4J Library

• Code

• Buy MCP23017 (India)

• Buy Raspberry Pi (India)

• Buy LCD

For more

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