A timer is a type of a clock that is used to measure specific time intervals. There are two types of timers.
- Stopwatch – these timers count upwards from zero.
- Countdown Timer – Counts from a specific time period provided by the user.
This course is going to teach you how to create a Raspberry Pi based countdown timer. Countdown timers are useful for counting the time until an event or special occasion, like birthdays, Christmas or the new year. You can modify the time for all events that you wish to count down to.