signed int arrayToTemperatureValue()
{
        signed int temperature = 0;
        unsigned char i = 1;
        unsigned char number;

        while (i<4 && isNumber(r_results[i]) >= 0)
        {
                number = isNumber(r_results[i]);
                switch(i)
                {
                        case 1:
                                temperature += number;      // ühelised
                                break;
                        case 2:
                                temperature += number*10;   // kümnelised
                                break;
                        case 3:
                                temperature += number*100;  // sajalised
                                break;
                }
                i++;
        }
        if(i<4 && isNumber(r_results[i])==-1)   temperature = -temperature;  // kui on negatiivne temperatuur
        return temperature;
}