Electronic System for Monitoring Bio Signals, for the Prevention and Control of Diabetes Mellitus

The glucose level in the blood is measured through invasive methods, causing discomfort in the patient, loss of sensitivity in the area where the sample is obtained and healing problems. This article deals with the design, implementation, and evaluation of a device with an ESP-WROOM-32D microcontroller with the application of near-infrared photospectroscopy technology, using a diode array between 830 nm and 940 nm to measure glucose levels in the blood. In addition, the system provides a web page for the monitoring and control of diabetes mellitus for each patient, hosted on a local Linux server with a MySQL database. The tests were conducted on 120 people in an age range of 35 to 85 years, each person underwent two samples with the traditional method and two with the non-invasive method. The developed device complies with the ranges established by the American Diabetes Association, presenting a measurement error margin of close to 3% in relation to traditional blood glucose measurement devices.