PCF8523 for Rust

This project aims to be a simple pure-rust I/O library for the PCF8523 series of I2C real-time clocks.

It's specifically developed using the Adafruit PCF8523 RTC for Rasperry Pi breakout, for which there is a brief example program shown.

lib.rs:

Pcf8523

Pcf8523 is a crate which abstracts away managing a PCF8523 device on an I2C bus. You can read the time and write the time, and someday in the future do other configuration tasks as well.