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3.11. AVR timers

The ATmega32U4 has 4 timers: Timer0, Timer1, Timer3, and Timer4. Each timer has a different set of features, as documented in the datasheet.

  • Timer0 is used by the Arduino environment for timing-related functions like millis().
  • Timer1 is used by the Balboa32U4 Arduino library for driving motors.
  • Timer3 is not used by the Balboa32U4 Arduino library and can be freely used for your own purposes.
  • Timer4 is used by the Balboa32U4 Arduino library for controlling the buzzer.

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