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Timers are the hardware in the processor used to count and time events. Use this tag for questions about the hardware timers.

3 votes
6 answers
22k views

Creating a timer using a Real Time Clock with start and stop times

I have an Arduino Uno with a motor shield, as well as a DS1307 RTC that I am using to control 2 pumps. Ideally I would like to set a start time (startHour + startMinute) and end time (endHour + endM …
Vinterwoo's user avatar
  • 259
3 votes
1 answer
6k views

Comparing time_t values within an if statement

I am using an UNO with a RTC to control a light board. I'm using a simple control structure to decide when to turn things off and on. It's my understanding that a time_t value is just a number (number …
Vinterwoo's user avatar
  • 259
8 votes
1 answer
32k views

The difference between "time_t" and "DateTime"

I've run into an issue trying to combine 2 different Arduino timer projects I've found online. For both projects I'm using a DS3231 RTC, but have been able use the DS1307 library just fine in my cod …
Vinterwoo's user avatar
  • 259