user-1: I have noted on more than one occasion the comments in sketches "reserving pin 13 for future PWM backlight dimming of the LCD" while using Uno and Nano boards.
Am I missing something ?  I always considered it NOT possible as PWM output is only available on pins 3,5,6,9,10 and 11 on most boards.

user11568: Arduino pin 13 is SCK/BP5 on the ATmega8 MPU, there's no hardware PWM capability on that pin, so any PWM would be software driven.

-1: <p>I have noted on more than one occasion the comments in sketches "reserving pin 13 for future PWM backlight dimming of the LCD" while using Uno and Nano boards.
Am I missing something ?  I always considered it NOT possible as PWM output is only available on pins 3,5,6,9,10 and 11 on most boards.</p>
 11568: <p>Arduino pin 13 is SCK/BP5 on the ATmega8 MPU, there's no hardware PWM capability on that pin, so any PWM would be software driven.</p>
