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