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PiTFT Plus 3.5" External HW Backlight Control using Arduino
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PiTFT Plus 3.5" External HW Backlight Control using Arduino

by MAVHH on Sat Nov 04, 2017 7:05 am

Hi,

I want to dim the backlight on my PiTFT Plus 3.5" using external HW - instead of by PWM of GPIO18.

Can I connect SJ2 directly to an external Arduino to supply the 3.3v PWM signal to control the backlight? Would I need additional components?

Dave

MAVHH
 
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Joined: Sat Nov 04, 2017 6:36 am

Please be positive and constructive with your questions and comments.