GitHub - PaulStoffregen/SoftI2CMaster: Software I2C / TWI library for Arduino allows any two pins to be SDA & SCL

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Software I2C / TWI library for Arduino allows any two pins to be SDA & SCL

todbot.com/blog/

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examples		examples
LICENSE.txt		LICENSE.txt
README.TXT		README.TXT
SoftI2CMaster.cpp		SoftI2CMaster.cpp
SoftI2CMaster.h		SoftI2CMaster.h

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SoftI2CMaster

2010-2012, Tod E. Kurt, http://todbot.com/blog/
2014, by Testato: update library and examples for follow Wire’s API of Arduino IDE 1.x


SoftI2CMaster is an Arduino library that implements
a simple "bit-bang" software-only I2C (aka "TWI") Master.

This lets you use any two Arduino pins to be the SDA & SCL 
pins needed to communicate with I2C devices like BlinkMs.

SoftI2CMaster was originally in the BlinkMSoftI2CDemo example
in http://code.google.com/p/blinkm-projects/