// Change bitorder of byte array, using the Serial Monitor

byte input[] = 
{
  0xAA, 0xF0, 0xFC, 0xFF, 0x00, 0x03,
};

void setup() 
{
  Serial.begin(115200);
  Serial.println("byte output[] =");
  Serial.println("{");
  Serial.print("  ");

  for(size_t i=0; i<sizeof(input); i++)
  {
    byte value = input[i];
    byte output = 0;
    for(int bit=0; bit<8; bit++)
    {
      bitWrite(output, 7-bit, bitRead(value,bit));
    }

    Serial.print("0x");
    if(output < 0x10)
      Serial.print("0");
    Serial.print(output, HEX);
    Serial.print(", ");
  }

  Serial.println();
  Serial.println("};");
}

void loop() 
{
  delay(10);
}