Fusion: Practice and Applications FPA 2692-4048 2770-0070 10.54216/FPA https://www.americaspg.com/journals/show/3569 2018 2018 Department of Computer Science, Collage of Computer Science and Mathematics, University of Mosul, Iraq Mohammad Mohammad Ministry of Education, General Directorate of Education in Nineveh, Iraq Wameedh Raad Fathel College of Engineering, Computer Engineering Department, University of Mosul, Iraq Hiba Dhiya Ali Technical Engineering College, Northren Technical University, Mosul, Iraq Marwa Mawfaq Mohamedsheet Al Al-Hatab Diabetes presents significant health risks globally, necessitating precise blood glucose monitoring to prevent serious repercussions including blindness, renal illness, kidney failure, heart disease, and even death from hyperglycemia or hypoglycemia, it is imperative to maintain normal blood glucose levels. However, regular blood glucose monitoring can be difficult for diabetics, and current non-invasive techniques sometimes do not assess blood sugar levels accurately or directly. In order to solve this problem, this study suggests a wearable optical system that is affordable and low-complexity. In this study, a wearable optical system has been proposed which can address the challenges in the accuracy and convenience in existing methods. This system used an Arduino Nano as a central control unit and a laser-transmitted module for blood glucose measurement. Light Dependent Resistors (LDRs) is used to detect and measure the intensity of laser light passing through the skin and impressed by blood glucose levels. The results are displayed on Organic Light Emitting Diode (OLED). During one weak trial, the system achieved average error present of 7.6% and 3.9% for before and after meal blood glucose concentration. The aim of this study is to enhance the lifestyle of diabetic patients by providing user-friendly technology for convenient blood glucose monitoring. It focuses on the potential benefits of non-invasive approaches and concentrates on the importance of the proposed wearable optical system in improving healthcare outcomes. 2025 2025 01 09 10.54216/FPA.190101 https://www.americaspg.com/articleinfo/3/show/3569