3.2inch RPi TFT LCD backlight ON/OFF

[hosune7845]

Hi.

I use 3.2inch RPi TFT LCD v4 (from waveshare)

I need to turn on/off backlight but there's no backlight pin!

I think ON/OFF main-power of LCD with re-load driver is solution..

Is it possible? or anyone can control backlight with another way?

[mikiper98]

i have the same problem, with this screen : https://www.waveshare.com/product/3.5inch-rpi-lcd-a.htm
if it can't be done via software i hope someone could help me with some other ideas, (like activating the 5V pins with a transistor or something like that)