Thanks srg74 for your support, really appreciate this. Honestly this is not my area, mechanical engineer. Thought I could follow a guide, works good for short distance data signal. Didn’t expected it should be a huge problem for 5-10m. I’m interested about oscilloscope and there are nice video at youtube how to get one cheap, but then you shall have the knowledge to use it also. This will take time. So I only done this stupid trial and error because I don’t know better, guesses as you say. I’m in a big house renovation and just want this to work as soon as possible so I can proceed. I have prepared hoses in the walls for invisible installation and want to use these, not possible to change them now. All led strips and esp32 I already bought. Seems you know what you are talking about, can you help me solve this with a guide how you would solve this, components (art.no), cable and wiring? Will it work with just a better cable, any suggestion of which one in that case? Tried to read about RS485 but realize it’s a big area. Is it possible to just have a chip like this in both ends, see link? 1000ft is a bit overkill maybe there are better options? Ready to pay some money for help if that will increase motivation 