Dot Matrixes not displaying programmed display

Sorry if the title is a little confusing. I couldn't think of a better way to word it. Also sorry for the bad soldering job. It's the first time I've tried to do anything like this.

Nano: Nano clone from amazon, UCEC USB Development Board ATmega328P CH340G 5V

Program trying to run: Protogen_OS_MOD - Google Drive

Processor: ATmega328p (old bootloader) - Won't work with the newer bootloader

Nano Driver Chip: CH340

When I soldered all the dot maxis together I used my voltmeter to make sure nothing was shorting out.

Is the RGB led working ?
Try to make a single led turn on with a common library.

How do you power all those leds ?

I don't currently have the RGB LED installed. It's just there do you know what face is being displayed. Could that really be the issue though?

Please replace the sh*t word with 'bad' - my kids read this forum!!!

If you have a multimeter, then you can check the led with a diode tester. In most cases the current from the diode tester will also light up the led some.

You have to check a number of things. Can you display text to the serial monitor, is the RGB led doing something and so on. But more important is that you make a few small test-sketches and test everything one by one.

It is a beginners mistake trying to make the final project work. If that does not work then someone want us to tweak one small little thing to make it work. However, we are no magicians, so all we can do is trying to help to test everything one by one.

Hi, @rikerthesergal
Welcome to the forum.

Please read the post at the start of any forum , entitled "How to use this Forum".

@rikerthesergal Fritzy picture.

Please post images/schematics in you post, some forum members use platforms that cannot read off forum files.

How are you powering all this?

Thanks.. Tom.. :smiley: :+1: :coffee: :australia:

I could have sworn that I posted the pictures in the original post. I've updated it and posted the pictures.

There was another thread about this a few days ago but the protagonist only had two or three of those displays working. Any attempt to add more was recognized as needing a change to how power was supplied.

It looks like you're running power from the Nano. I doubt that it can manage to run that many displays.

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