Czech mirror in IKEA LILLÅNGEN

[sero]

I found the description of the board and pins:
http://www.vslcd.com/Specification/T.VST29.03.pdf

“CN2” describes the pinout for the invertor.
Pin 3 is backlight on/off and pin 4 is for the adjustment of the brightness.

[TomasZmuda]

Perfect, you could only unplug this cable and the LCD shound be without background. It’s simple test. :) Next plug this cable to PIR output and as i wrote in first post, don’t remember hook up ground between LVDS and Raspberry.

[MrH]

I just posted a question about PIR connection to a similar board. Feel free to help me out guys :)

https://forum.magicmirror.builders/topic/503/pir-sensor-to-cut-backlight-power

@TomasZmuda if you look at my option 2. do I need to ground inverter and Pi?

thanks!

[sero]

@TomasZmuda
I tested unplugging pin 3 and you are right: the display / backlight ist switched off 👍
I also got me a voltmeter and checked the currents :) seems to be identical to your setup. So next, I’ll connect a PIR, check the current and connect it as you described.

Thanks!