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I'm going to build a LED-Wall which i will control via 4 teensy micro controllers. Everywere I read the vertical number of my LEDs has to be a multiple of 8? Does it really have to be so?

Thank you

Adam
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1 Answers1

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No.

The number 8 is the factor of number of output pins in a port of most digital electronics component (shifters, drivers etc) which assumes a output word to be 8 bits. A port in a general purpose MCU or MPU will have 8 pins.

Thus the whole available pins can be utilised without wastage.

ATmega168P/328P in arduino, has 3 ports. PORTB, PORTC, and PORTD.

gmuraleekrishna
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