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dear sir, im looking this your project. http://electronoobs.com/eng_arduino_tut24_2.php. so i have a question ! line number 48:
TCCR2B = TCCR2B & B11111000 | 0x03; // pin 3 and 11 PWM frequency of 980.39 Hz
what is the purpose of this cord, why do you used to PWM frequency of 980.39 Hz ?
Thank you !