// put 2 char variables and 2 int variables into our data memory
char var_1 = 1; 
uint8_t var_2 = 2;
int var_3 = 3;
int16_t var_4 = 4;

void setup() {
  Serial.begin(9600);
  Serial.println("Mem02");
 
  // print out its address, which is 16 bits unsigned 
  Serial.println( (uint16_t) &var_1, HEX); 
  Serial.println( (uint16_t) &var_2, HEX);
  Serial.println( (uint16_t) &var_3, HEX);
  Serial.println( (uint16_t) &var_4, HEX);
}

void loop() {
}