RANCANG BANGUN ALAT UKUR KADAR HEMOGLOBIN, KANDUNGAN OKSIGEN DAN KADAR GULA DALAM DARAH PADA MANUSIA SECARA NONINVASIVE BERBASIS MIKROKONTROLER

Abstract

A design and realization of measuring tool of hemoglobin, oxygen content and blood sugar levels in humans non-invasively based on microcontroller have been finished. This tool can measure levels of hemoglobin, oxygen content and blood sugar levels in humans and could be use for the health system. To measure the three parameters were only using your fingers as input. Measuring did non-invasively or without injuring the body. This tool uses oxymetry, signal conditioning, microcontroller and liquid cristal display (LCD). Oxymetry consists of a light-emitting diode (LED) as light source and photodiode as light censor which transform light into voltage. Signal conditioning is used to strengthen the input of the optical sensor. Microcontroller is used to process incoming data from the signal conditioning through digital analog converter of the microcontroller and did the internal conversion process. Liquid cristal display (LCD) is used to display the measurement data from sensor. Realization of this tool is measuring on range 0-250 mg/dl for blood sugar, 0-20 gr/dl for hemoglobin and 0-100% for oxygen content in blood.