Due with CTE TFT LCD/SD Shield and SainSmart TFT 3.2" not working
Topic: Due with CTE TFT LCD/SD Shield and SainSmart TFT 3.2" not working
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Re: Due with CTE TFT LCD/SD Shield and SainSmart TFT 3.2" not working
May 03, 2015, 07:15 pm
Quote from: ralfl on May 03, 2015, 02:30 pm
Still couldn't figure out if it is possible to dim the backlight.
yes it is possible, but you need to do several things first. Look at your schematic and identify the PWM pin for the back display. Make sure this pin is compatible with your display, and not being used. If it is available and compatiblewith your display, you will need to do the following.
1: The PWM pin is missing from the CTE board. You will have to add it.
2: redo the jumpers so that it reflects this change.
3: Write a PWM routine to control the brightness of the screen.
They safe and have fun.