[Arduino IDE demo source code for KC868-A128]--#03--PCF8575-DO code

Code:
#include "Arduino.h"

#include "PCF8575.h"



// Set i2c address

PCF8575 pcf8575_R1(0x24,5,16);

PCF8575 pcf8575_R2(0x25,5,16);

PCF8575 pcf8575_R3(0x21,5,16);

PCF8575 pcf8575_R4(0x22,5,16);

PCF8575 pcf8575_R5(0x26,5,16);

PCF8575 pcf8575_R6(0x27,5,16);

PCF8575 pcf8575_R7(0x20,5,16);

PCF8575 pcf8575_R8(0x23,5,16);



unsigned long timeElapsed;

void setup()

{

  Serial.begin(115200);

  pcf8575_R1.begin();

  pcf8575_R2.begin();

  pcf8575_R3.begin();

  pcf8575_R4.begin();

  pcf8575_R5.begin();

  pcf8575_R6.begin();

  pcf8575_R7.begin();

  pcf8575_R8.begin();

  

pcf8575_R1.pinMode(P0,OUTPUT);

pcf8575_R1.pinMode(P1,OUTPUT);

pcf8575_R1.pinMode(P2,OUTPUT);

pcf8575_R1.pinMode(P3,OUTPUT);

pcf8575_R1.pinMode(P4,OUTPUT);

pcf8575_R1.pinMode(P5,OUTPUT);

pcf8575_R1.pinMode(P6,OUTPUT);

pcf8575_R1.pinMode(P7,OUTPUT);

pcf8575_R1.pinMode(P8,OUTPUT);

pcf8575_R1.pinMode(P9,OUTPUT);

pcf8575_R1.pinMode(P10,OUTPUT);

pcf8575_R1.pinMode(P11,OUTPUT);

pcf8575_R1.pinMode(P12,OUTPUT);

pcf8575_R1.pinMode(P13,OUTPUT);

pcf8575_R1.pinMode(P14,OUTPUT);

pcf8575_R1.pinMode(P15,OUTPUT);



pcf8575_R2.pinMode(P0,OUTPUT);

pcf8575_R2.pinMode(P1,OUTPUT);

pcf8575_R2.pinMode(P2,OUTPUT);

pcf8575_R2.pinMode(P3,OUTPUT);

pcf8575_R2.pinMode(P4,OUTPUT);

pcf8575_R2.pinMode(P5,OUTPUT);

pcf8575_R2.pinMode(P6,OUTPUT);

pcf8575_R2.pinMode(P7,OUTPUT);

pcf8575_R2.pinMode(P8,OUTPUT);

pcf8575_R2.pinMode(P9,OUTPUT);

pcf8575_R2.pinMode(P10,OUTPUT);

pcf8575_R2.pinMode(P11,OUTPUT);

pcf8575_R2.pinMode(P12,OUTPUT);

pcf8575_R2.pinMode(P13,OUTPUT);

pcf8575_R2.pinMode(P14,OUTPUT);

pcf8575_R2.pinMode(P15,OUTPUT);



pcf8575_R3.pinMode(P0,OUTPUT);

pcf8575_R3.pinMode(P1,OUTPUT);

pcf8575_R3.pinMode(P2,OUTPUT);

pcf8575_R3.pinMode(P3,OUTPUT);

pcf8575_R3.pinMode(P4,OUTPUT);

pcf8575_R3.pinMode(P5,OUTPUT);

pcf8575_R3.pinMode(P6,OUTPUT);

pcf8575_R3.pinMode(P7,OUTPUT);

pcf8575_R3.pinMode(P8,OUTPUT);

pcf8575_R3.pinMode(P9,OUTPUT);

pcf8575_R3.pinMode(P10,OUTPUT);

pcf8575_R3.pinMode(P11,OUTPUT);

pcf8575_R3.pinMode(P12,OUTPUT);

pcf8575_R3.pinMode(P13,OUTPUT);

pcf8575_R3.pinMode(P14,OUTPUT);

pcf8575_R3.pinMode(P15,OUTPUT);

pcf8575_R4.pinMode(P0,OUTPUT);

pcf8575_R4.pinMode(P1,OUTPUT);

pcf8575_R4.pinMode(P2,OUTPUT);

pcf8575_R4.pinMode(P3,OUTPUT);

pcf8575_R4.pinMode(P4,OUTPUT);

pcf8575_R4.pinMode(P5,OUTPUT);

pcf8575_R4.pinMode(P6,OUTPUT);

pcf8575_R4.pinMode(P7,OUTPUT);

pcf8575_R4.pinMode(P8,OUTPUT);

pcf8575_R4.pinMode(P9,OUTPUT);

pcf8575_R4.pinMode(P10,OUTPUT);

pcf8575_R4.pinMode(P11,OUTPUT);

pcf8575_R4.pinMode(P12,OUTPUT);

pcf8575_R4.pinMode(P13,OUTPUT);

pcf8575_R4.pinMode(P14,OUTPUT);

pcf8575_R4.pinMode(P15,OUTPUT);



pcf8575_R5.pinMode(P0,OUTPUT);

pcf8575_R5.pinMode(P1,OUTPUT);

pcf8575_R5.pinMode(P2,OUTPUT);

pcf8575_R5.pinMode(P3,OUTPUT);

pcf8575_R5.pinMode(P4,OUTPUT);

pcf8575_R5.pinMode(P5,OUTPUT);

pcf8575_R5.pinMode(P6,OUTPUT);

pcf8575_R5.pinMode(P7,OUTPUT);

pcf8575_R5.pinMode(P8,OUTPUT);

pcf8575_R5.pinMode(P9,OUTPUT);

pcf8575_R5.pinMode(P10,OUTPUT);

pcf8575_R5.pinMode(P11,OUTPUT);

pcf8575_R5.pinMode(P12,OUTPUT);

pcf8575_R5.pinMode(P13,OUTPUT);

pcf8575_R5.pinMode(P14,OUTPUT);

pcf8575_R5.pinMode(P15,OUTPUT);



pcf8575_R6.pinMode(P0,OUTPUT);

pcf8575_R6.pinMode(P1,OUTPUT);

pcf8575_R6.pinMode(P2,OUTPUT);

pcf8575_R6.pinMode(P3,OUTPUT);

pcf8575_R6.pinMode(P4,OUTPUT);

pcf8575_R6.pinMode(P5,OUTPUT);

pcf8575_R6.pinMode(P6,OUTPUT);

pcf8575_R6.pinMode(P7,OUTPUT);

pcf8575_R6.pinMode(P8,OUTPUT);

pcf8575_R6.pinMode(P9,OUTPUT);

pcf8575_R6.pinMode(P10,OUTPUT);

pcf8575_R6.pinMode(P11,OUTPUT);

pcf8575_R6.pinMode(P12,OUTPUT);

pcf8575_R6.pinMode(P13,OUTPUT);

pcf8575_R6.pinMode(P14,OUTPUT);

pcf8575_R6.pinMode(P15,OUTPUT);



pcf8575_R7.pinMode(P0,OUTPUT);

pcf8575_R7.pinMode(P1,OUTPUT);

pcf8575_R7.pinMode(P2,OUTPUT);

pcf8575_R7.pinMode(P3,OUTPUT);

pcf8575_R7.pinMode(P4,OUTPUT);

pcf8575_R7.pinMode(P5,OUTPUT);

pcf8575_R7.pinMode(P6,OUTPUT);

pcf8575_R7.pinMode(P7,OUTPUT);

pcf8575_R7.pinMode(P8,OUTPUT);

pcf8575_R7.pinMode(P9,OUTPUT);

pcf8575_R7.pinMode(P10,OUTPUT);

pcf8575_R7.pinMode(P11,OUTPUT);

pcf8575_R7.pinMode(P12,OUTPUT);

pcf8575_R7.pinMode(P13,OUTPUT);

pcf8575_R7.pinMode(P14,OUTPUT);

pcf8575_R7.pinMode(P15,OUTPUT);



pcf8575_R8.pinMode(P0,OUTPUT);

pcf8575_R8.pinMode(P1,OUTPUT);

pcf8575_R8.pinMode(P2,OUTPUT);

pcf8575_R8.pinMode(P3,OUTPUT);

pcf8575_R8.pinMode(P4,OUTPUT);

pcf8575_R8.pinMode(P5,OUTPUT);

pcf8575_R8.pinMode(P6,OUTPUT);

pcf8575_R8.pinMode(P7,OUTPUT);

pcf8575_R8.pinMode(P8,OUTPUT);

pcf8575_R8.pinMode(P9,OUTPUT);

pcf8575_R8.pinMode(P10,OUTPUT);

pcf8575_R8.pinMode(P11,OUTPUT);

pcf8575_R8.pinMode(P12,OUTPUT);

pcf8575_R8.pinMode(P13,OUTPUT);

pcf8575_R8.pinMode(P14,OUTPUT);

pcf8575_R8.pinMode(P15,OUTPUT);









}



void loop()

{

 //R1 LOW----------------------

pcf8575_R1.digitalWrite(P0,LOW);

delay(50);

pcf8575_R1.digitalWrite(P1,LOW);

delay(50);

pcf8575_R1.digitalWrite(P2,LOW);

delay(50);

pcf8575_R1.digitalWrite(P3,LOW);

delay(50);

pcf8575_R1.digitalWrite(P4,LOW);

delay(50);

pcf8575_R1.digitalWrite(P5,LOW);

delay(50);

pcf8575_R1.digitalWrite(P6,LOW);

delay(50);

pcf8575_R1.digitalWrite(P7,LOW);

delay(50);

pcf8575_R1.digitalWrite(P8,LOW);

delay(50);

pcf8575_R1.digitalWrite(P9,LOW);

delay(50);

pcf8575_R1.digitalWrite(P10,LOW);

delay(50);

pcf8575_R1.digitalWrite(P11,LOW);

delay(50);

pcf8575_R1.digitalWrite(P12,LOW);

delay(50);

pcf8575_R1.digitalWrite(P13,LOW);

delay(50);

pcf8575_R1.digitalWrite(P14,LOW);

delay(50);

pcf8575_R1.digitalWrite(P15,LOW);

delay(50);



//R2 LOW------------------------

pcf8575_R2.digitalWrite(P0,LOW);

delay(50);

pcf8575_R2.digitalWrite(P1,LOW);

delay(50);

pcf8575_R2.digitalWrite(P2,LOW);

delay(50);

pcf8575_R2.digitalWrite(P3,LOW);

delay(50);

pcf8575_R2.digitalWrite(P4,LOW);

delay(50);

pcf8575_R2.digitalWrite(P5,LOW);

delay(50);

pcf8575_R2.digitalWrite(P6,LOW);

delay(50);

pcf8575_R2.digitalWrite(P7,LOW);

delay(50);

pcf8575_R2.digitalWrite(P8,LOW);

delay(50);

pcf8575_R2.digitalWrite(P9,LOW);

delay(50);

pcf8575_R2.digitalWrite(P10,LOW);

delay(50);

pcf8575_R2.digitalWrite(P11,LOW);

delay(50);

pcf8575_R2.digitalWrite(P12,LOW);

delay(50);

pcf8575_R2.digitalWrite(P13,LOW);

delay(50);

pcf8575_R2.digitalWrite(P14,LOW);

delay(50);

pcf8575_R2.digitalWrite(P15,LOW);

delay(50);



//R3 LOW------------------------

pcf8575_R3.digitalWrite(P0,LOW);

delay(50);

pcf8575_R3.digitalWrite(P1,LOW);

delay(50);

pcf8575_R3.digitalWrite(P2,LOW);

delay(50);

pcf8575_R3.digitalWrite(P3,LOW);

delay(50);

pcf8575_R3.digitalWrite(P4,LOW);

delay(50);

pcf8575_R3.digitalWrite(P5,LOW);

delay(50);

pcf8575_R3.digitalWrite(P6,LOW);

delay(50);

pcf8575_R3.digitalWrite(P7,LOW);

delay(50);

pcf8575_R3.digitalWrite(P8,LOW);

delay(50);

pcf8575_R3.digitalWrite(P9,LOW);

delay(50);

pcf8575_R3.digitalWrite(P10,LOW);

delay(50);

pcf8575_R3.digitalWrite(P11,LOW);

delay(50);

pcf8575_R3.digitalWrite(P12,LOW);

delay(50);

pcf8575_R3.digitalWrite(P13,LOW);

delay(50);

pcf8575_R3.digitalWrite(P14,LOW);

delay(50);

pcf8575_R3.digitalWrite(P15,LOW);

delay(50);



//R4 LOW------------------------

pcf8575_R4.digitalWrite(P0,LOW);

delay(50);

pcf8575_R4.digitalWrite(P1,LOW);

delay(50);

pcf8575_R4.digitalWrite(P2,LOW);

delay(50);

pcf8575_R4.digitalWrite(P3,LOW);

delay(50);

pcf8575_R4.digitalWrite(P4,LOW);

delay(50);

pcf8575_R4.digitalWrite(P5,LOW);

delay(50);

pcf8575_R4.digitalWrite(P6,LOW);

delay(50);

pcf8575_R4.digitalWrite(P7,LOW);

delay(50);

pcf8575_R4.digitalWrite(P8,LOW);

delay(50);

pcf8575_R4.digitalWrite(P9,LOW);

delay(50);

pcf8575_R4.digitalWrite(P10,LOW);

delay(50);

pcf8575_R4.digitalWrite(P11,LOW);

delay(50);

pcf8575_R4.digitalWrite(P12,LOW);

delay(50);

pcf8575_R4.digitalWrite(P13,LOW);

delay(50);

pcf8575_R4.digitalWrite(P14,LOW);

delay(50);

pcf8575_R4.digitalWrite(P15,LOW);

delay(50);



 //R5 LOW----------------------

pcf8575_R5.digitalWrite(P0,LOW);

delay(50);

pcf8575_R5.digitalWrite(P1,LOW);

delay(50);

pcf8575_R5.digitalWrite(P2,LOW);

delay(50);

pcf8575_R5.digitalWrite(P3,LOW);

delay(50);

pcf8575_R5.digitalWrite(P4,LOW);

delay(50);

pcf8575_R5.digitalWrite(P5,LOW);

delay(50);

pcf8575_R5.digitalWrite(P6,LOW);

delay(50);

pcf8575_R5.digitalWrite(P7,LOW);

delay(50);

pcf8575_R5.digitalWrite(P8,LOW);

delay(50);

pcf8575_R5.digitalWrite(P9,LOW);

delay(50);

pcf8575_R5.digitalWrite(P10,LOW);

delay(50);

pcf8575_R5.digitalWrite(P11,LOW);

delay(50);

pcf8575_R5.digitalWrite(P12,LOW);

delay(50);

pcf8575_R5.digitalWrite(P13,LOW);

delay(50);

pcf8575_R5.digitalWrite(P14,LOW);

delay(50);

pcf8575_R5.digitalWrite(P15,LOW);

delay(50);



//R6 LOW------------------------

pcf8575_R6.digitalWrite(P0,LOW);

delay(50);

pcf8575_R6.digitalWrite(P1,LOW);

delay(50);

pcf8575_R6.digitalWrite(P2,LOW);

delay(50);

pcf8575_R6.digitalWrite(P3,LOW);

delay(50);

pcf8575_R6.digitalWrite(P4,LOW);

delay(50);

pcf8575_R6.digitalWrite(P5,LOW);

delay(50);

pcf8575_R6.digitalWrite(P6,LOW);

delay(50);

pcf8575_R6.digitalWrite(P7,LOW);

delay(50);

pcf8575_R6.digitalWrite(P8,LOW);

delay(50);

pcf8575_R6.digitalWrite(P9,LOW);

delay(50);

pcf8575_R6.digitalWrite(P10,LOW);

delay(50);

pcf8575_R6.digitalWrite(P11,LOW);

delay(50);

pcf8575_R6.digitalWrite(P12,LOW);

delay(50);

pcf8575_R6.digitalWrite(P13,LOW);

delay(50);

pcf8575_R6.digitalWrite(P14,LOW);

delay(50);

pcf8575_R6.digitalWrite(P15,LOW);

delay(50);



//R7 LOW------------------------

pcf8575_R7.digitalWrite(P0,LOW);

delay(50);

pcf8575_R7.digitalWrite(P1,LOW);

delay(50);

pcf8575_R7.digitalWrite(P2,LOW);

delay(50);

pcf8575_R7.digitalWrite(P3,LOW);

delay(50);

pcf8575_R7.digitalWrite(P4,LOW);

delay(50);

pcf8575_R7.digitalWrite(P5,LOW);

delay(50);

pcf8575_R7.digitalWrite(P6,LOW);

delay(50);

pcf8575_R7.digitalWrite(P7,LOW);

delay(50);

pcf8575_R7.digitalWrite(P8,LOW);

delay(50);

pcf8575_R7.digitalWrite(P9,LOW);

delay(50);

pcf8575_R7.digitalWrite(P10,LOW);

delay(50);

pcf8575_R7.digitalWrite(P11,LOW);

delay(50);

pcf8575_R7.digitalWrite(P12,LOW);

delay(50);

pcf8575_R7.digitalWrite(P13,LOW);

delay(50);

pcf8575_R7.digitalWrite(P14,LOW);

delay(50);

pcf8575_R7.digitalWrite(P15,LOW);

delay(50);



//R8 LOW------------------------

pcf8575_R8.digitalWrite(P0,LOW);

delay(50);

pcf8575_R8.digitalWrite(P1,LOW);

delay(50);

pcf8575_R8.digitalWrite(P2,LOW);

delay(50);

pcf8575_R8.digitalWrite(P3,LOW);

delay(50);

pcf8575_R8.digitalWrite(P4,LOW);

delay(50);

pcf8575_R8.digitalWrite(P5,LOW);

delay(50);

pcf8575_R8.digitalWrite(P6,LOW);

delay(50);

pcf8575_R8.digitalWrite(P7,LOW);

delay(50);

pcf8575_R8.digitalWrite(P8,LOW);

delay(50);

pcf8575_R8.digitalWrite(P9,LOW);

delay(50);

pcf8575_R8.digitalWrite(P10,LOW);

delay(50);

pcf8575_R8.digitalWrite(P11,LOW);

delay(50);

pcf8575_R8.digitalWrite(P12,LOW);

delay(50);

pcf8575_R8.digitalWrite(P13,LOW);

delay(50);

pcf8575_R8.digitalWrite(P14,LOW);

delay(50);

pcf8575_R8.digitalWrite(P15,LOW);

delay(50);









//R1 HIGH-----------------------

pcf8575_R1.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R1.digitalWrite(P15,HIGH);

delay(50);



//R3 HIGH------------------------

pcf8575_R2.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R2.digitalWrite(P15,HIGH);

delay(50);



//R3 HIGH-----------------------

pcf8575_R3.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R3.digitalWrite(P15,HIGH);

delay(50);



//R4 HIGH------------------------

pcf8575_R4.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R4.digitalWrite(P15,HIGH);

delay(100);



//R5 HIGH-----------------------

pcf8575_R5.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R5.digitalWrite(P15,HIGH);

delay(50);



//R6 HIGH------------------------

pcf8575_R6.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R6.digitalWrite(P15,HIGH);

delay(50);



//R7 HIGH-----------------------

pcf8575_R7.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R7.digitalWrite(P15,HIGH);

delay(50);



//R8 HIGH------------------------

pcf8575_R8.digitalWrite(P0,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P1,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P2,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P3,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P4,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P5,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P6,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P7,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P8,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P9,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P10,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P11,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P12,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P13,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P14,HIGH);

delay(50);

pcf8575_R8.digitalWrite(P15,HIGH);

delay(100);

}