mgaman/ds3231

Improved version of Arduino library Simple example

DS3231

Improved version of the Arduino library DS3231 Simple example

The orginal example has a builtin flaw in that the DS3231 is initialized to the COMPILE time of the code instead of the actual time.
On my work machine the difference between compilation time and actual execution time can be around 20 seconds.
I have added the possibility of initializing the DS3231 from an NTP server.
Additionally I have added the possibilty of just reading the DS3231 and not initializing it.
At the top of the source file are 2 define's. The user must enable (uncomment) just 1 or neither of these lines.

• If neither line is uncommented, code that just reads the DS3231 and displays the date/time
• If COMPILE_TIME_SETUP is uncommented, the DS3231 is initialized to the time that the code was compiled.
• If NTP_TIME_SETUP is uncommented, the DS3231 is initialized to the actual time the code is executed. Should you choose NTP_TIME_SETUP then you have to modify the lines setting the Daylight Saving Time rules see https://github.com/sstaub/NTP

IDE

This project was developed on PlatformIO, a plugin for Visual Studio Code. Therefore the source file has the cpp suffice. For using with the Arduino IDE rename the main.cpp file to <projectname>.ino