Journal of Engineering, Scientific Research and Applications (JESRA) ISSN (Online): 2455 – 3964 & ISSN (Print): 2395 – 1613 Volume 4, Issue 2, July – December, 2018 10 BLOOD GLUCOSE MEASUREMENT BY SWEAT USING ARDUINO K. Nivetha*, N. Ramya*, R. Thendral* & A. Gopikrishnan** * PG Scholar, Department of Instrumentation & Control Engineering, Saranathan College of Engineering, Tiruchirappalli, Tamilnadu ** Professor, Department of Instrumentation & Control Engineering, Saranathan College of Engineering, Tiruchirappalli, Tamilnadu Cite This Article: K. Nivetha, N. Ramya, R. Thendral & A. Gopikrishnan, “Blood Glucose Measurement by Sweat Using Arduino”, Journal of Engineering, Scientific Research and Applications, Volume 4, Issue 2, Page Number 10-17, 2018. Abstract: This work investigates the effect of blood glucose measurement by conductivity measurement technique. Sweat contains dissolved ions, which contribute conduction between the two copper electrodes. As the concentration of ions in the sweat increases, conduction increases. The measured parameters such as voltage from the copper sensor is given to Arduino controller and then to the LCD display. Normal person have voltage range of 320 conductivity / sec and its corresponding glucose level is 80mg/dl. For diabetic person the voltage range is 377conductivity/sec and its corresponding glucose level is 141mg/dl. The responses are studied as salt content in the sweat is high, which results in high glucose level. If salt content in the sweat is low, it result in low glucose level. The correlation between salt content in sweat with its corresponding voltage and glucose level is done by interpolation equation. Non-invasive blood glucose estimation framework is utilized to quantify the blood glucose without taking the blood test. Hence, this method of blood glucose measurement is said to be painless, cost effective and easy monitoring for diabetes person. Key Words: Non-Invasive, Sweat, Glucose Measurement & Arduino Controller 1. Introduction: One of the biggest health challenges people facing now a days is diabetics due to its exponential increase in the blood glucose level. To prevent such complication due to diabetics it is necessary to monitor the blood glucose level continuously. Most of the regular glucose measurement systems are invasive in nature. Invasive methods cause pain, time consumption, high cost, invading healthy tissue and potential risk of spreading infection diseases. So, blood glucose monitoring by non-invasive method which is reliable, cost effective and comfortable. (Lahoda et al. (1975), Challoner et al. (1979), Clarke et al. (1987), Colwell et al. (1987), Wilson et al. (1992)). Blood glucose monitoring is done by various method. Some of them are UV spectroscopy method, RF Transmission method, Zinc oxide method etc. Researchers had monitored the blood glucose by non-invasive method using sweat. (Carlos et al. (2009), Rujuta et al. (2013), Liu et al. (2016). Diabetes is considered to be chronic metabolic disorder which affects all vital organs. For diabetic person, it is essential for monitoring blood glucose continuously. So, collecting blood by injection method causes blood loss which is essential for body, painful, and invading healthy tissue. Figure 1 shows the classification of glucose measurement. It is done by two methods. Blood glucose measurement is done by various method by collecting sample from  Tears  Saliva  Sweat Other than blood the remaining samples as above are wastes which are secreted from the body. Blood glucose measurement is essential for diabetes person to monitor glucose level continuously.  Invasive method