int ad_val;
    float resolution = 1024.0; //1024 = 2^10, please check ad bit setting
    float ad_voltage;
    float ad_resistance;
    float vcc = 3.3;
    float resistance0 = 10000;   // R0, termista, 10k ohm (normal, 25deg)
    float resistance1 = 10000;   // R1, split voltage resitance, 10k ohm
    float e = 2.7182818284; // Napier's constant
    float b = 3435.0; // B parameter termista value when 25 deg. = 3435
    float standard_temp = 25.0 + 273.15;  // 25.0 deg + 273.15 absolute temp. [kelbin]
    float temprature;



            ad_val = (int)p_event->data.done.p_buffer[i];
            ad_voltage = (float)(ad_val) / resolution * vcc;
            ad_resistance = ad_voltage / (vcc - ad_voltage) * resistance1;
            temprature = b/(logf(ad_resistance/resistance0) + (b/standard_temp)) - 273.15;
            //NRF_LOG_INFO("%d,%f", p_event->data.done.p_buffer[i], temprature);
            //NRF_LOG_INFO(NRF_LOG_FLOAT_MARKER, NRF_LOG_FLOAT(temprature));
            NRF_LOG_RAW_INFO("%d," NRF_LOG_FLOAT_MARKER "\n", p_event->data.done.p_buffer[i], NRF_LOG_FLOAT(temprature));