Archive for 5th March 2011

TCA9555 Library for Arduino

TCA9555 is a 16-bit I2C I/O expander from Texas Instruments. It allows the easy addition of 16 I/O ports on any device that supports the I2C bus. This makes it attractive for expanding the number of I/O pins on the standard Arduino platform using ATmega328. Up to eight TCA9555’s can be used on the same I2C bus and thus allowing up to an additional 128 digital pins to be added. Continue reading ‘TCA9555 Library for Arduino’ »