Display brightness control

Hi, me again. How do I control the brightness of LED backlight? We have a display (AUO) with inputs for:

- 12V Backlight Power
- GND
- 5V for enable/disable backlight
- PWM input for dimming.

For now we have all pins hard wired to 12V,GND,5V or 3.3V.

The question is how do I control the VCFL (J28 Pin1) and PWM (J28 Pin2) pins by software. By default both pins seem to be low (0V).

Thanks for answering

OK - sounds good.

Good Morning,

any news about v0.2? Is there a new date of release?

It's working in V 0.2 now:

Set full backlight:
echo 254 > /sys/class/backlight/pwm-backlight/brightness
Set backlight off:
echo 0 > /sys/class/backlight/pwm-backlight/brightness