Arduino pin 13 as PWM output, not possible? 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.
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.