4 #include "WProgram.h"

5 #endif

6

7 #include "clsPCA9555.h"

8 #include "Wire.h"

9

10

11 PCA9555 ioport(0x20);

12

13 void setup()

14 {

15

ioport.pinMode(7, OUTPUT); //Set GPIOs pinMode LED

16

ioport.pinMode(8, INPUT);

//Button

17 }

18

19 void loop()

20 {

21

if (ioport.digitalRead(ED8) == LOW) {

22

ioport.digitalWrite(7, LOW);

//Turn off Led

23

}

24

25

if (ioport.digitalRead(ED8) == HIGH) {

26

ioport.digitalWrite(7, HIGH);

//Turn on Led

27

}

28

29 }

Library Explanation

Library Functions



pinMode() same as standard Arduino



digitalRead() same as Arduino



digitalWrite() same as Arduino