Two-button clock

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6

I sort of cleaned up what I had, and now here is what I have.

Features:

  • Date and time display, crammed into one line of a 16x2 character LCD
  • Date and time manually settable by means of two push buttons
  • Support for an external RTC, but will still run without an RTC

Limitations:

  • No support for Daylight Saving Time
  • No sanity checking of dates (it will happily let you set the date to Feb. 30)
  • No alarms, no bells, no whistles, just the date and time

settable_clock_optional_rtc.ino (15.3 KB)