Arduino Timer and Interrupt Tutorial - Oscar Liang
Arduino timer interruptions ISR Tutorial
31khz PWM on TIMER2 atmega8 - Programming Questions - Arduino Forum
GitHub - PaulStoffregen/FlexiTimer2: Arduino library to use timer 2 with a configurable resolution. Based on MsTimer2 by Javier Valencia. Written for the project associated with the "Mobile & Pervasive Computing" course at
How to modify the PWM frequency on the arduino-part3 (Timer 2 and CTC mode) | eprojectszone