@sdetweil oh sorry. on the power supply which powers the arduino I have also connect 2 small 12v fans. So the grounds of the fans and the ground of arduino yes they are common. Do you think this is the problem? So if disconnect the fans the leds should work? but why this is not happening from the beggining and it happens only when the screen turns on?

@sdetweil Thank you for your reply. I have a power hub (I am sorry for my English but I am Greek so some words are difficult ro translate so I have the link to see the picture of it) where everything is plugged in. I don’t know if that is what you mean.

Hello everyone. I just finished my MM and I have a problem with my WS2812B led strip. It is powered from an external power supply and I use arduino uno for the effects which also is powered by another power supply. When I hooked everything in the MM frame I tested the led strip and was working fine. But when I turn on the TV, the led strip is starting doing crazy things like flickering, turn off, etc. Keep in mind that my tv is an old one. I am mentioning that because the led strip is doing the crazy things not when I push the on button on the TV but when the screen turns on (it needs about 10sec for the screen to show picture). It is like something happens when the screen turns on. I don’t think it has to do with power bacause beside that everything is pluged into a hub, every board has it’s own power supply. Maybe some “noise-waves” from TV panel confuses arduino? Have enyone face something like that? Any opinions will be appreciated. Thank you in advance.

UPDATE!
Hello everyone. I would like to tell you that I just migrate from Rasberry pi 3B+ to Rasberry pi 4B 4GB. I just want to tell you that It worked perfectly by just instering the SD from the old pi. The only thing I had to do Is to configure the audio output bacause I use hdmi to transfer audio. Everything else worked as a charm. OS, MM, GA, leds everything. I made this update in case someone else is thinking if it is possible. Well IT IS!!!

@sdetweil Then you are a savior too. Thank you so much. I will do it ASAP.

@sdetweil I start building it at June. So it is only 4 months old. You think it will be just fine with the old SD and the OS it is already installed on it? If so it will be savior for me. I want to avoid all modules reinstall and especialy creating new project on google for Google Assistant.

Hello everyone. I hope my question is not too much silly. I want to replace my rpi3 with an rpi4 which I will buy soon. My question is if I must reinstall everything to the new one or just by inserting the old pi’s SD card to the new one can do the job? Or is there another way to have everything as working now from rpi3 to rpi 4? Thank you in advance.

@nateb827 Hi. Have you try only this?

{
		module: "MMM-Cursor",
		config: {
			// See 'Configuration options' for more information.
		}
	}

If it does not work with this config try adding a comma at the third bracket like this

{
		module: "MMM-Cursor",
		config: {
			// See 'Configuration options' for more information.
		},
	}

@Anthony said in *NEW LIST 29.06.2021* Two way community order for mirror glass for all european countries - Open until at least 10 people have entered:

Hello there. I am sorry my friend but is seems to take much longer time than I expected so I have ordered the mirror from a local supplier and accordingly I must cancel my order to you. I already have removed my name from the list. Thank you.

@Goldjunge_Chriz

1	@ivow	0.63	0.37	0.233	0.4	Netherlands	polished edges
2	@zlobni	0.92	0.72	0.662	0.662	Slovenia	polished edges
3	@osnapus	0.45	0.35	0.158	0.4	Poland	polished edges
4	@davmirror	0.9	0.7	0.63	0.63	Spain	polished edges

UPDATE!
From a quick search I have done I decided that it is better to connect arduino and led strip on the same power supply. My led strip is a 3m ws2812b neopixel with 30pixels/meter which consume 60mA/pixel in full brightness so (60*90)/1000=5.4A. The power supply I am using is 5V - 6A so I think it anough for both since arduino’s only job is to send data to led strip. Please If someone has better knowledge of electricity correct me. Thank you.