Project Cronus

Simple and Organised Arduino library for I2C based RTCs.

This library enables the functionality for clock reading, clock setting, alarms and timers of I2C RTCs.

Features	DS1037	DS3231	PCF8563	PCF8623	MCP7940
Address	0x68	0x68	0x51	0x68	0x6F
12 hours	Yes	Yes	Yes	Yes	Yes
Alarms	0	2	1	0	2
Timers	0	0	1	0	0

How to Install

Search RTC from Arduino Library

To Do

• Fix Unix Time Issue
• Fix Weeks for all RTCs
• Implement Alarms & Timers for Supported RTCs

Future

• DS3232
• RV-8803-C7
• SD3031

Reference & Documentation

• RTC Wiki.