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Topic: Scrolling text on LED matrices using SPI and arduino Mega2560 (Read 8 times) previous topic - next topic


Ok.....I must've missed that on the datasheet....

I'm going to open up the rats nest  (I have it all in an enclosure)

I'm going to replace the R's now...


Ok I have replaced the 10K's with 33 K's I had.....feel much better....the Matrices that would work were very bright......

so I closed it all back up....now the first matrix lights up totally..

the second matrix = Row 2 is only lit up...matrix 3 and 4 = nothing

I'll try and paste my code here....

I may have to shrink it down some....

I'm going to start trying to get the matrices working....

My LCD , LEDs, Buttons all work fine,....



Do me a favor.

make these 2 changes
Code: [Select]

 // *******************Initialize the LCD**************//
/*  comment out the LCD and all the delays as a test
 lcd.begin(40, 2);

Code: [Select]

   lcd.setCursor(0, 1);
   lcd.print("<-- Down Control        Clock:");

*/   end of commenting out LCD setup code
 void loop ()
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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