A Node-MCU based device that monitors user's health parameters such as body temperature, blood pressure and blood oxygen % (SpO2) and shares them on the user's smart-phone in realtime. Built in my Second year as part of academic mini-project.
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An ultrasonic sensor detects an approaching person and signals the controller which turns the servo motor attached to the door and also wakes up the monitoring system. -
The Max30100 and lm35 sensors measure the pulse-rate, blood oxygen level and body temperature of the person. -
The data can be viewed on the person's smartphone when connected to the same Wi-Fi
Circuit Connections:-
Design Sketch:-
Actual System:-
Smartphone Screen:-
Source Code is written using Arduino IDE.
References:
https://randomnerdtutorials.com/esp32-ssd1306-oled-display-arduino-ide/
https://randomnerdtutorials.com/esp32-servo-motor-web-server-arduino-ide/
https://esp32io.com/tutorials/esp32-ultrasonic-sensor
https://iotprojectsideas.com/esp32-based-max30100-pulse-oximeter-webserver/
https://www.electronicwings.com/esp32/lm35-sensor-interfacing-with-esp32
https://www.instructables.com/IoT-Project-Using-ESP32-NodeMCU-Network-With-Blynk/