8x8 Bicolor LED Matrix with MAX7219

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hello everyone,

i'm following circuit below hook 8x8 bicolor led matrix. far, hooked matrix correctly i'm not sure if i'm using right resistor.

right now, led light , display pattern below, if try upload other patterns not change. leds supposed red showing orange @ moment. i'm using 10uf , .1uf capacitor. i'm using 33k ohm resistor connect pin 18 5v power. (this guess since don't know forward voltage or amplitude of matrix. i'm using led matrix site: https://www.creatroninc.com/product/8x8-led-matrix-20mm/).

any assistance appreciated!

the max7219 can not drive bi-colour matrix there not enough outputs that.

quote
also leds supposed red showing orange @ moment.
that means red , green leds both being lit up.

have got data sheet matrix pin numbers don't mean without one.


Arduino Forum > Using Arduino > LEDs and Multiplexing > 8x8 Bicolor LED Matrix with MAX7219


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