// how are multibyte integers placed in memory?

// some easily identifiable byte patterns
uint16_t X = 0x1122;

void setup() {
    uint8_t *p;  // a pointer to a byte

    Serial.begin(9600);
    Serial.println("Endian Test");
 
    // print the parts of X 
    Serial.print("X is 0x");  Serial.println(X, HEX);

    p = (uint8_t *) &X;

    Serial.print("p is 0x"); Serial.println( (uint16_t) p, HEX);
    Serial.print("*p is 0x"); Serial.println( *p, HEX); 
    Serial.print("*(p+1) is 0x"); Serial.println( *(p+1), HEX);

    if ( *p == 0x11 ) {
        Serial.println("This is a big-endian machine.");
        }
    else {
        Serial.println("This is a little-endian machine.");
        }
   }

void loop() {
}