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
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