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Topic: Solderless LED Matrix? (Read 5 times) previous topic - next topic


I did play around with two matrices and  LedControl and had this problem too. From memory (not stating fact) I had the number of devices integar set at 1 instead of 2

LedControl lc=LedControl(12,11,10,1);    12, 11 and 10  Arduino pins  1 number of Max7219.

It maybe worth checking good luck Pedro.


So it turns out my issue was that I was connecting my columns and rows together - d'oh! Its working great now, just waiting for a few more wires to arrive and I am planning on building this before Christmas: http://www.instructables.com/id/Yet-Another-Daft-Punk-Coffee-TableDisplay/


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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