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Topic: Solderless LED Matrix? (Read 8943 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.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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