#include "Arduino.h"
#include "PCF8574.h"

PCF8574 pcf8574(0x20);

boolean Flag1 = 1;
boolean Flag2 = 1;
boolean Flag3 = 1;
boolean Flag4 = 1;
boolean Flag5 = 1;
boolean Flag6 = 1;
boolean Flag7 = 1;
boolean Flag8 = 1;

void setup()
{
	Serial.begin(115200);
  for (int nL=0; nL <= 7; nL++) {
  pcf8574.pinMode(nL, INPUT);
  }
	pcf8574.begin();
}
void loop()
{
	Flag1 = pcf8574.digitalRead(P0);
  Flag2 = pcf8574.digitalRead(P1);
  Flag3 = pcf8574.digitalRead(P2);
  Flag4 = pcf8574.digitalRead(P3);
  Flag5 = pcf8574.digitalRead(P4);
  Flag6 = pcf8574.digitalRead(P5);
  Flag7 = pcf8574.digitalRead(P6);
  Flag8 = pcf8574.digitalRead(P7);

	if (Flag1==HIGH){
  delay(100);
	Serial.println("teste entrada 1");
  }
  if (Flag2==HIGH){
  Serial.println("teste entrada 2");
  delay(100);
  }
  if (Flag3==HIGH){
  Serial.println("teste entrada 3");
  delay(100);
  }
  if (Flag4==HIGH){
  Serial.println("teste entrada 4");
  delay(100);
  }
  if (Flag5==HIGH){
  Serial.println("teste entrada 5");
  delay(100);
  }
  if (Flag6==HIGH){
  Serial.println("teste entrada 6");
  delay(100);
  }
  if (Flag7==HIGH){
  Serial.println("teste entrada 7");
  delay(100);
  }
  if (Flag8==HIGH){
  Serial.println("teste entrada 8");
  delay(100);
  }

}