struct SensorsInfo 
{
    const char name[15];
    const uint8_t code;
    const float resolution;
};
  
SensorsInfo sensorsListInfo[] =
{
  {"sen0",      0x01,        1.0},     //0
  {"sen1C",  0xff,    0.01},    //1
  {"sen2",  0xcf,    0.01},  
  {"sen3",  0xaa,    0.01}, 
};

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32-S2!");
}

void loop() {

  int size = getStrucSize(sensorsListInfo);
  Serial.print("size:");
  Serial.println(size);

  delay(500);
 
}

int  getStrucSize(SensorsInfo * structure)
{
  size_t i ,j ;
  i = sizeof(structure);
  Serial.println("****");
  Serial.println(i);
  j = sizeof(structure[0]);
  Serial.println(j);
  Serial.println("****");

  return i/j;

}