@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.

@gerbenvs Hi. For me in the module’s config the qrSize works fine so check if you have place it correctly in your config file or else like sdetweil mentioned try to abjust the image size through your custom.css

@sdetweil I am confuse a little bit. From what I read I think usb port is better since it powers itself from the pi’s supply and not from the board. Although I have only one availiable on my pi because all others are used for mouse, keyboard and mic I think I will give a try and see how it goes. Thank you very much for your reply.

Hello everyone. I hope I did’t open this topic in the wrong place.If so pls correct me. I would like to ask if Rassberry pi 3b+ can power an arduino uno R3. On the pi I have istalled magic mirror and GA and I use some gpios of the pi for the pi’s fan and an RGB led strip for GA status. The arduino is used only for lighting another led strip with various effects. Both led strips is connected to external power supplies so no further power consuption on both boards. Also if it is possible which way is better? Through the Vin, the 5V pin or usb port? I am asking this only to avoid using one more power supply since there are already 3. One for the pi, and two for the led strips. Thank you in advance.

@Egnos I didn’t know you want a picture too. Although this, this and this seem to have a picture of the article but better is to check them yourself to see if they fit your needs.

@Egnos Why don’t you try different modules?

@kayakbabe My problem was not the power because I power the led strip from external power supply. I figured out that somehow the GPIOs I wanted was not set as output mode and high state. I set them and everything is working fine. Thank you for your reply.

@BKeyport said in GPIO'S:

Smart LEDs are highly reliant on data timing being exact.

The problem is that except GPIO22 which working all other GPIOs I checked never worked. Even if the command show it works. Well if I do not get a valid answer from rasberry forum to fix it I won’t use the status leds. I can leave with that :smiling_face_with_sunglasses:

@BKeyport Thank you for your reply. what do you mean bu saying that the problem is timing? I already have made a topic in rasberry forum and waiting for reply.

Hello builders. I have a problem with my rasberry. I want to connect a led strip to use it with GA status. I follow this guide to connect and control it but it seems that most of gpios do not work. Only one color lighted in the strip so I took a voltometer and connect the black wire to one of the rasberry’s grounds and the with the red one I start touching the gpios and only one of them had near 3.3v. All others was below 0.8v. Even when I run the script for the status I get the output tha GA is in listen status and so the GPIO17 should be in high state it has no power. Does anybody have an idea of what is going on? Are the GIPIOs dead? Thank you in advance.

@sdetweil No problem. I will visit the store again when he has the glass to see it myself and if it is possible to see it working. After I will make up my mind.