Arduino PWM notes

https://arduino.stackexchange.com/questions/3182/what-is-the-frequency-of-pwm-output-on-arduino

https://avr-guide.github.io/pwm-on-the-atmega328/

http://ww1.microchip.com/downloads/en/AppNotes/Atmel-2542-Using-the-AVR-High-speed-PWM_ApplicationNote_AVR131.pdf

https://arduino.stackexchange.com/questions/3182/what-is-the-frequency-of-pwm-output-on-arduino https://avr-guide.github.io/pwm-on-the-atmega328/ http://ww1.microchip.com/downloads/en/AppNotes/Atmel-2542-Using-the-AVR-High-speed-PWM_ApplicationNote_AVR131.pdf

https://arduino.stackexchange.com/questions/3182/what-is-the-frequency-of-pwm-output-on-arduino https://avr-guide.github.io/pwm-on-the-atmega328/ http://ww1.microchip.com/downloads/en/AppNotes/Atmel-2542-Using-the-AVR-High-speed-PWM_ApplicationNote_AVR131.pdf