Device Control
MCP7940
https://github.com/SV-Zanshin
Arduino library to use the Microchip MCP7940 RTC (Real-Time-Clock)
Allowing access to and control of the MCP7940 RTC functionality including the base read/write of time and setting up multiple alarms as well as setting the MFP pin
Go to repositoryThis library is compatible with all architectures so you should be able to use it on all the Arduino boards.