September 18, 2018 Pin used for PWM signal to control backlight intensity in the GEM Graphical OS Color Chip By FAQs › Category: Color Hardware › Pin used for PWM signal to control backlight intensity in the GEM Graphical OS Color Chip 0 Vote Up Vote Down Amulet Staff asked 6 years ago You can use any PWM pin on the chip. Please login or Register to submit your answer Username or Email Address Password Remember Me Share