//--------------------------------------------------------------------
union {
    uint32_t n;
    struct {
        uint16_t l;
        uint16_t h;
    } hl;
} dataConverter;

int precN;
//--------------------------------------------------------------------
void setup() 
{
    Serial.begin(9600);
}
//--------------------------------------------------------------------
void loop() 
{
    int n = analogRead(A0) * 4.002932551;   // n da 0 a 4095

    if (n != precN)
    {
        precN = n;
        Serial.print("IN: ");
        Serial.print(n);
        Serial.print("    ");
        dataConverter.n = 11203UL * n;
        Serial.print("OUT: ");
        Serial.println(dataConverter.hl.h);  // da 0 a 700
    }

    delay(20);
}
//--------------------------------------------------------------------