AVG_IR=AVG_IR/NumberOfRedIrSamples; //Average InfraRedLed samples AVG_RED=AVG_RED/NumberOfRedIrSamples;//Average RedLed samples AVG_IR=(AVG_IR)*950; //(Average Of InraRedLed Values)/(wavelength of InfraRedLed) AVG_RED=(AVG_RED)*650; //(Average Of RedLed Values)/(Wavelength of RedLed) SpO2=((110-25*(AVG_RED/AVG_IR))); //Formula to Calculate SpO2