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Topic: Led matrix (Read 1 time) previous topic - next topic

siluk

I'm trying to drive a led matrix 8X8 with a MAX7219, I put the code and save to my arduino uno, but the code runs for 1 second and all the lights go out, and they don't light up anymore. No matter the code I put, the code runs for 1 second and it all goes out. Help me clarify what's goin' on. Does anyone has any idea?

dxw00d

Quote
Does anyone has any idea?


Without seeing your schematic or code? How would we?

siluk

Like I said, no matter what code I put, but I was trying to run a code from the book beginning arduino chap 21 that teaches how to drive a led display with the max 7219. Ant it starts to run, then stops. Everything stops, I thought could be some problem with the chip or with the arduino. Sometimes the code runs for one minute and it all stops all of a sudden.

kd7eir

Based on the data that you have given us to crunch, I would have to postulate that solar flares are the cause.

Far-seeker


Like I said, no matter what code I put, but I was trying to run a code from the book beginning arduino chap 21 that teaches how to drive a led display with the max 7219.


If you typed this code in yourself, perhaps you made an error while entering it into the IDE.  I know from personal experience, it's not uncommon to look at text (either computer code or normal documents) while you are typing and read what you intended to be there, instead of what really is.  Just cut and and paste the entire sketch to the forums inside of code tags (see the little button with "#" on it?) and it will allow other people to proof-read your code.  

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