What an explaination :!: :!: I think i understand mostly of what you said. It's hard cause i'm not a electricien and english is not my birth language. But I think I get the point. I'll try with thicker wires (but it's hard to solder on a little wemos !) and proper soldering with a unique power sourc...

Thanks a lot for your help !!

Thanks for the advice.

As everything works without any external powersupply, do you think it's not safe ?

Okay, I'm progressing.

I do not use the external power supply and it works. I can display some texte on the bottom line and on the top line.
For the record, I plug the bottom line wich seems to be the DIN.

It seems the powersupply is not needed.

When you only connect to the bottom modules, the top 8 modules won't work. These modules have to be sequentially connected. I ended up connecting ca. 50 of these modules on a single ESP8266 task, with all kinds of different content. Somebody else did a rather huge display using this plugin over her...

There should be a connection, as I wrote, from DOUT on the top set of modules in your 2nd photo in the first message to the DIN connection of the bottom row. Checked one of my modules, and I measured a resistance of ca. 3 ohm, so that's close enough to 0 :? Okay. The results are from top to bottom ...

Thanks for your help. I can see no connection between line up and line down but it seems working as I succeed in lighting them all. But I have lines going up to down. I do not know if I have to plug the top line or the bottom one.... In fact, the other module (1x4 led) is not working anymore. I'm go...

Is this correct ??

Hi everyone ! I'm tryind to make a screen display based on MAx7219. I used a Wemos D1 with a 4LED MAX7219. It works fine. I use a external powersupply for the max7219 (5V - 6 A) Now I'm trying to make it bigger. I bought "https://fr.aliexpress.com/item/1005005017483515.html?spm=a2g0o.order_deta...

It works well ! Thanks four your help.

I tried this one but with my 3 zones (one per module) it did not work.

It's perfect.

Thanks again.

I don't fully understand what you are trying to say here, but let's try to reword it: You have 3 modules of 8*8 leds, configured side-by-side, and you want to use that as a single Zone? This is exactly what i meant. then you should configure 1 Zone (the default), that consists of 3 Modules (set tha...

Hi ! I'm new here and use esp easy with differetn plug in such as weight. This time, i'm trying to use Display - MAX7219 dot matrix. I succeed in configurating it with a wemos D1 and a 1x3 led module. But the plug in can only display txt on each zone. I'd like to scroll a text on all the zones. Is t...