Designing and Implementation of Microcontroller Based Non-Invasive Health Monitoring System

Over the last few decades, design and implementation of non-invasive techniques for instant health condition measurement has become a huge demand. And in our day to day life, instant detection of heart rate, blood glucose level and body temperature has become a laidback task with the advancement of technology in medical science. And in this paper, we proposed a model based on microcontroller that can instantly detect human body temperature, heart beats per minute (BPM) and blood glucose level with a non-invasive technique. Biomedical equipment like Glucometer can only be used to detect blood glucose level through an invasive technique, digital thermometers can be used to detect only body temperature and detecting BPM requires costly blood pressure measurement kit. But in our model, we accumulated all the three mechanisms together on a single device to measure body temperature, BPM and blood glucose level instantly. This design is not only easy to use by a person with non-medical background but will also be cost-effective as well and it is accessible by low income households. From an environmental aspect, this eco-friendly design utilizes solar PV technology to charge the 6V battery that powers all the electronic parts associated with the device. The module includes a GSM based message system that allows the user to send a message expressing the health condition of the user to a physician. The entire setup is achieved via a control unit consisting of a groove ear clip, Arduino Uno, GSM module, buzzer, MQ2 gas sensor, LM35 temperature sensor and a 6V battery with a solar PV charging unit with a charge controller.