increase amount of pins

Comments

2 comments

  • Samuell

    Coming to the code portion. First individual pins of arduino are defined to control 8255 chip. Then i defined the individual I/O pins as output in setup() Function. Because i only want to write to Port-B of 8255 UPSers

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  • Blaze7

    I have discovered a way to add more pins to an Arduino by using another Arduino and connecting them.

    0

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