Arduino-Based Optical System for Non-Invasive Blood Glucose Estimation Using BPW34 Photodiode

Samsul Mujakar (Akademi Teknik Elektromedik Andakara, Indonesia)
Rahmalisa Suhartina (Akademi Teknik Elektromedik Andakara)
Nanda Ferdana (Akademi Teknik Elektromedik Andakara, Bekasi, Indonesia)
Ade Firdaus (Akademi Teknik Elektromedik Andakara, Bekasi, Indonesia)
M. Arif Herdiansyah (Akademi Teknik Elektromedik Andakara, Bekasi, Indonesia)

Jatilima : Jurnal Multimedia Dan Teknologi Informasi
Vol. 8 No. 3 (2026): Jatilima : Jurnal Multimedia Dan Teknologi Informasi

Diabetes mellitus requires regular blood glucose monitoring, while conventional glucometers generally rely on invasive finger-prick procedures. This study developed an Arduino-based non-invasive blood glucose estimation system using a BPW34 photodiode and a green LED. The system acquired optical signals, processed ADC values, and estimated glucose concentration using linear regression. Experimental measurements were compared with a standard invasive glucometer. The results showed a positive linear relationship between ADC values and glucose concentration, with measurement errors ranging from 0% to 2.13%. The findings demonstrate the preliminary feasibility of the proposed system for portable non-invasive glucose estimation.