Method getH2

libraries/SGP30/SGP30.cpp:253–257

experimental - datasheet Page 2 1.953125e-3 = 1/512

//  experimental - datasheet Page 2
//  1.953125e-3 = 1/512
float SGP30::getH2()
{
  float cref = 0.5;  //  ppm
  return cref * exp((_srefH2 - _h2) * 1.953125e-3);
}


float SGP30::getEthanol()