dedeweb

import 'dart:math';

void main() {
  var adcRaw = 3120;
    var rawValue = (adcRaw * 3.2) / 4096;
    var rT = (3.2 * 60400) / (3.2 - rawValue) - 60400;
    var tempKelv = 4250 * 298 / (4250 + 298 * (log(rT / 1000) - log(100)));
    var degC =  tempKelv - 273.15; //to deg celciuss
    var correctDegC = (degC -2.2007)/0.907;
    print(correctDegC);

dedeweb

import 'dart:math';

double computeTemp(int adcRaw) {
  var rawValue = (adcRaw * 3.2) / 4096;
  var rT = (3.2 * 60400) / (3.2 - rawValue) - 60400;
  var tempKelv =
      4250 * 298 / (4250 + 298 * ( log(rT / 1000) -  log(100)));
  return tempKelv - 273.15; //to deg celcius
}