Interfacing 16x2 LCD by using MCp23017 16 Bit input/output Port Expander IC with Raspberry Pi by using 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 compatible modes

Intro visual Source: http://bit.ly/2jtWoHn

MCP23017 Details : http://bit.ly/2koAFzc

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Links :

I2C Communication on Pi : http://bit.ly/2jswlgD

16x2 LCD with Pi : http://bit.ly/2kgR7o8

Java Application on Pi Playlist: http://bit.ly/2eB1O2K

Schematic : http://bit.ly/2jsCadP

Pi4J GPIO Numbering : http://bit.ly/2ja20av

Download Pi4J Library : http://bit.ly/2j32blF

Code : http://bit.ly/2jG1DUK

Buy MCP23017 : http://amzn.to/2koHz7x (India)

Buy Raspberry Pi : http://amzn.to/2jlIOUH (India)

Buy LCD : http://amzn.to/2jbE9GI

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