Max7219 module

Hello.

I want to build a LED display with those things. But i dont know how many of them arduino can handle and what kind of power supply i should use.

Thanks.

How many do you need? A number would be a good start.

marco_c:
How many do you need? A number would be a good start.

I want 8 or 10, not sure right now.

That’s 32 to 40 modules. An Arduino Uno can handle the management of these. You need about 200mA per module if these are commercially bought. See MAX7219 and LED matrix power requirements – Arduino++

marco_c:
That’s 32 to 40 modules. An Arduino Uno can handle the management of these. You need about 200mA per module if these are commercially bought. See MAX7219 and LED matrix power requirements – Arduino++

Thank you.

There's a lot of 8x8, 4x8x8 LED and n x 8x8 talk in the LED section of this forum!