[Nikky]

Možda ovako nešto:
https://www.homemade-circuits.com/re...communication/

https://www.pcbway.com/project/share...nsmitter_.html
+
https://www.pcbway.com/project/share...ower_line.html

Objašnjenje > https://www.youtube.com/watch?v=lWiZ65nuNDw

Nezgodno je šta bi to trebalo slagati / praviti, a po meni i doraditi u nekim detaljima.