Ensure Monday is wday 0

[tannewt]

Issue brought up on the forum here: https://forums.adafruit.com/viewtopic.php?f=60&t=182751

[tekktrik]

Looking into this, it seems as if the driver code is correct, but the example is wrong. I can confirm this and submit a PR to update the example code. Happy to modify the guide to match if that's possible through Github.

[tekktrik]

Datasheet for reference: https://datasheets.maximintegrated.com/en/ds/DS3231.pdf

It looks like the time is being set correctly since the weekday number is user-defined and auto-increments. The register library seems to be set up correctly here as well, setting Monday as 0 to the register's 1 for first weekday.

[tannewt]

A PR would be great. Some examples are automatically updated in Learn. If this one isn't, then let me know and I can fix it. Thanks!

[tekktrik]

Sounds great! Hardware on the way to dot i's and cross t's, but I can submit the PR to correct the example. :)

[tekktrik]

Should be resolved by #39 !

[tannewt]

Thank you!