johnm-emutex / emutex_max6957_library

An Arduino library for the Emutex 56-Port GPIO shield

Emutex 56-Port GPIO Shield Library

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This is an Arduino library for the Emutex 56-Port GPIO shield, based on the Maxim Integrated MAX9657 I/O Expander and LED Display Driver.

This shield uses SPI to communicate, and has been tested with the following Arduino platforms:

• Arduino Uno
• Intel Galileo

Created by Emutex, an embedded software engineering company based in Ireland. For more information, please visit http://www.emutexlabs.com

To download, click the DOWNLOAD ZIP button, rename the uncompressed folder to Emutex_MAX9657. Check that the Emutex_MAX9657 folder contains Emutex_MAX9657.cpp and Emutex_MAX9657.h

Place the Emutex_MAX9657 library folder in your Arduino libraries folder, and restart the IDE.

TODO

• Add support for GPIO input modes
• Add option to allow per-port configuration of input/output/ccled mode
• Consider adding methods to get/set all port values in a single call
• Auto-detect number of MAX9657 devices in daisy-chain.