remap_tca_pin

#include "Wire.h"
#include "TCA9555.h"
TCA9555 TCA1(0x20);
TCA9555 TCA2(0x21);

unsigned long cur_time, old_time;
int ledState = LOW;

byte pin_tca1[] = {0, 1, 2, 3, 4, 5, 6, 7, 13, 12, 11, 10};
byte pin_tca2[] = {7, 6, 5, 4, 3, 2, 1, 0, 10, 11, 12, 13};

byte pin_led = 16;
byte dt_tca1[20];
byte dt_tca2[20];

void setup() {
  // put your setup code here, to run once:
  delay(10);
  Serial.begin(115200);
  Serial.println();
  delay(100);
  pinMode(pin_led, OUTPUT);

  Wire.begin();
  TCA1.begin();
  TCA2.begin();

  for (int i = 0; i < sizeof(pin_tca1); i++) {
    Serial.print(i); Serial.print(",");
    TCA1.pinMode(pin_tca1[i], INPUT_PULLUP);
    TCA2.pinMode(pin_tca2[i], INPUT_PULLUP);
  }
  Serial.println();
}

void loop() {
  // put your main code here, to run repeatedly:
  cur_time = millis();
  if (cur_time - old_time >= 100) {
    ledState = !ledState;
    digitalWrite(pin_led, ledState);
    Serial.print("TCA1: ");
    for (int i = 0; i < sizeof(pin_tca1); i++) {
      dt_tca1[i] = TCA1.digitalRead(pin_tca1[i]);
      Serial.print(dt_tca1[i]);
      Serial.print(",");
      delay(5);
    }
    Serial.println();

    Serial.print("TCA2: ");
    for (int i = 0; i < sizeof(pin_tca2); i++) {
      dt_tca2[i] = TCA2.digitalRead(pin_tca2[i]);
      Serial.print(dt_tca2[i]);
      Serial.print(",");
      delay(5);
    }
    Serial.println();
    old_time = millis();
  }
}