AVR Workshop

6

Using Hardware Timers

We use timers to determine when we want a period of time to elapse before an action takes place, which can be incredibly useful. For example, you can set an interrupt to trigger when a timer reaches a certain value. Timers operate in the background; while the microcontroller runs your code, the timers are counting away.

In this chapter, you’ll learn about:

• • Various timers in your ATmega328P-PU microcontroller
• • Timer overflow interrupts
• • Clear Timer on Compare Match interrupts

I’ll show you how to run parts of code on a regular basis, create longer delays for repetitive actions, and examine the accuracy of internal ...