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HOWTO: Adding a Brightness Control for the 3.5" GearBest Screen
Posted: Sun Aug 19, 2018 6:31 am
I saw someone here asked
if the brightness of the GearBest Screen
can be controlled via software. With a raspberry pi or Arduino chips, yes it can be done. Here's How To Add Brightness Control For The 3.5″ GearBest Screen
. The guide might also work with other screen that uses the CL6201 LED driver IC.
Re: HOWTO: Adding a Brightness Control for the 3.5" GearBest Screen
Posted: Wed Dec 12, 2018 8:55 pm
Followed the steps and dim button seemed to work but brightness button did not work. Then I noticed in the picture in the guide brightness button is hooked up to pin 14 but in the python brightness button is set to pin 16. I just changed it to to 14 in the python and the brightness button then worked. Btw I added the code below to /etc/rc.local before exit 0 to get this to work at start up.
sudo python /home/pi/brightness_controller.py