Breakoutboard mit dem PCF8575 16 Bit I/O Expander.
Have you run out of I/O pins? This great IC allows the user to expand
up to 16 I/O using only two I/O for control! The PCF8575C is controlled
through an I2C interface and features 16-bits of quasi-bidirectional
input/output pins. Checkout the datasheet for more info!