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Topic: Power supply questions for the Max7219 (Read 2222 times) previous topic - next topic


Max7219 can drive 8 seven-segment displays - your description sounds like you have 4 digits to drive.
Make sure you get purchase common cathode displays for the 7-segment displays.
For the matrix, there is no difference  between common cathode & common anode, its just a matter of orientation. You will using the matrix with the common cathodes arranged vertically (cathode-column).
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.


Perfect! I think Im ready to start building!

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