struct my_struct{
  uint8_t a;
  uint8_t b;
  float c;
};

void setup() {
  Serial.begin(9600);
}

void loop() {
  my_struct x;
  x.a = 20;
  x.b = 69;
  Serial.println(x.a);
  Serial.println(x.b);
  Serial.println(sizeof(x));
  while(1);
}