Smart Pre-Examination Health Care System for Doctors Developed on an ARDUINO Microcontroller ^†

At present, people and hospital management are wasting their time and wealth due to a lack of a smart system in the pre-examination process for patients. This paper discusses an approach to designing a healthcare system that collects necessary health condition data using a microcontroller-based smart system, the information from which is referred to an authorized device. The smart Health Care System is an economical healthcare device for a hospital; it obtains measurements of vital signs like temperature using a DS18B20 Digital Temperature Sensor, heartbeat and SpO2 level using pulse oximetry and a health rate sensor, and the height of a patient via an ultrasonic sensor, etc. The system contains a microcontroller, an Arduino UNO, and all the collected information from sensors is sent to the Arduino UNO. The LCD screen coupled with the Arduino UNO displays all measurements from the sensors. This project has an alert system that works according to the patient’s condition; if there is an emergency, the RED LED will light up, and the system will generate an alert through a buzzer and send the information to the doctor using a Bluetooth system. This system can be placed before entering triage, used in the intensive care unit, or used as a personal device to monitor the health of a patient.