Design of SIMANIS: A Photodiode-Based Device for Non-Invasive Blood Sugar Detection Mutia Hanum, Angga Dwi Firmanto, Antinah Latif, Carissa Dwilanisusantya, Mawan Nugraha
Politeknik Negeri Media Kreatif
Abstract
Millions of people depend on regular blood sugar checks to manage diabetes. However, invasive procedures including finger pricking are inconvenient and impair patient compliance. This has prompted extensive study into non-invasive blood sugar monitoring methods. This paper proposes a prototype for a non-invasive blood sugar monitoring device called SIMANIS. It attempts to give a more convenient solution by measuring sugar levels using a photodiode rather than finger pricking. The device detects sugar molecules in the blood by emitting red LED light from a finger-attached sensor. Based on the working principle of a photodiode, the sensor absorbs the light reflected from the patient^s finger. Then it converts an analog electric signal into a digital representation by the ADC on the Arduino. A linear regression equation converts the ADC value into a blood sugar level value. The development of SIMANIS represents a promising step towards more comfortable blood sugar monitoring. The tests show that the maximum error rate is 2.49%. The analysis data revealed an accuracy rate of approximately 92.17% in the measurements. These values suggest that while the measurement system is fairly accurate (with an accuracy rate of over 90%), there are instances where the errors can be as high as 2.49%. These performance metrics are important for evaluating how reliable and precise the SIMANIS is, particularly in fields like medical diagnostics, where small errors can have significant consequences. Overall, SIMANIS has the potential to revolutionize sugar level monitoring by providing a more user-friendly, precise, and health-focused method for managing diabetes.
