Abstract
The Covid-19 pandemic outbreak is still not over. Even today, there are many cases of people without symptoms (OTG=Orang Tanpa Gejala/People Without Symptoms). The sufferer does not feel the symptoms of fever, cough and runny nose. Patients can still do activities as usual, but suddenly experience shortness of breath and decreased consciousness due to lack of oxygen. This phenomenon of reducing the amount of oxygen in the body without causing symptoms is known as happy hypoxia. This study aims to design a prototype measurement of blood oxygen saturation (SpO2) as an early detection of happy hypoxia in Covid-19 patients using a pulse oximeter sensor and non-invasive methods (without surgery). The sensor is placed on the patient's fingertip and will measure the intensity of light that penetrates the bloodstream at the fingertip. The measurement data is compared with an oximeter and this tool has the highest error of 0.02% and the lowest 0.01%.
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