This exercise earns Pass points in arduino programming. This exercise demonstrates an IoT device that measures heart rate and blood oxygen levels. Use HTTPS protocol to display data on the website. Website uses PHP language
ASSIGNMENT FRONT SHEET Qualification TEC Level HND Diploma in Computing Unit number and title Unit 43: Internet of Things Submission date 28/10/2023 Date Received 1st submission Re-submission Date 28/10/2023 Date Received 2nd submission Student Name Tran Duc Long Student ID GCH210562 Class GCH1106 Assessor name Le Anh Ngoc Student declaration I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism I understand that making a false declaration is a form of malpractice Student’s signature Grading grid P5 P6 P7 M5 M6 D3 D4 Summative Feedback: Resubmission Feedback: 2.1 Grade: Assessor Signature: Internal Verifier’s Comments: Signature & Date: Date: Table of Contents A Introduction B Task 1: Develop the IoT application (P5-P6-M5) I Employ an appropriate set of tools to develop your plan into an IoT application Overview Select an appropriate set of tools to develop your plan Develop the solution II C Video and test product 15 Product 15 Website 16 The perfect and incomplete points in our system 20 Task 2: Test and Evaluate the user feedback (P7 – M6) 20 Run end user experiments and examines feedback 20 Evaluate end user feedback from your IoT Application 23 D Conclusion 25 Table of Figure Figure 1: Framework ESP8266 Figure 2: Framework adafruit Figure 3: Demo products 10 Figure 4: Hosting service of our project 14 Figure 5: All files in my website project 15 Figure 6: Example source code PHP in project website 15 Figure 7: Final product 16 Figure 8: Home page 17 Figure 9: Health monitor page 18 Figure 10: HistoryLog page 18 Figure 11: Contact page 19 Figure 12: Feedback of user from website 19 Figure 13: Product introduction and calculation formula 20 A Introduction In Assignment 1, I explored IoT platforms, tools, and hardware while elucidating the fundamental principles of IoT This report aims to implement the solutions outlined in the previous document for the identified problem Subsequently, I will gather feedback from project participants and evaluate the ultimate outcome B Task 1: Develop the IoT application (P5-P6-M5) I Employ an appropriate set of tools to develop your plan into an IoT application Overview a Problem In today's rapidly evolving technological landscape, there is a continuous push towards advancements, particularly in the realm of the Internet of Things (IoT) These advancements are driven by the pressing need to address various human requirements IoT technology has found extensive applications across a wide array of sectors and industries, including areas such as agriculture, transportation, and education However, one notable and recent example that vividly underscores the importance of IoT is its deployment in the field of epidemic prevention In particular, IoT has played a crucial role in safeguarding the health of a significant population, especially in the context of diseases like Covid-19 Given the serious nature of such illnesses, we have taken proactive steps to develop a product that integrates IoT functionalities This product is specifically designed for monitoring essential physiological parameters, specifically heart rate and blood oxygen levels By enabling users to continuously track these vital metrics, our innovation serves as a proactive tool for monitoring cardiovascular health and oxygen levels in the blood This, in turn, allows for timely medical intervention in cases of emergency It is worth noting that a common symptom of Covid-19 is a decrease in blood oxygen levels, which, if not addressed promptly, can lead to respiratory distress and, in severe instances, even mortality b Solution To effectively tackle the challenge mentioned earlier, our team has developed and implemented a solution involving a device designed for monitoring both heart rate and blood oxygen levels This innovative device has been carefully crafted to meet the specific requirements associated with these medical conditions, allowing individuals to easily assess their health status Notably, this device not only has the ability to collect relevant data regarding heart rate and blood oxygen levels but also features the capability to promptly send notifications to the patient, their family members, and the attending medical professional for swift follow-up and intervention It's essential to highlight that even beyond the current epidemic situation, this technology remains a valuable asset in the healthcare sector, providing ongoing support and significant potential for future enhancements and advancements Select an appropriate set of tools to develop your plan Our team has opted for an IoT application centered around monitoring heart rate and blood oxygen levels This application will encompass two key features: a heart rate sensor and a blood oxygen level sensor The data collected from these sensors will be transmitted to a website via the HTTP protocol for analysis and to issue warnings based on the user's heart rate and SpO2 severity The initial step in bringing this program to life involves selecting an Integrated Development Environment (IDE) for source code development, program debugging, and code compilation Our team has chosen the Arduino IDE for this project because it operates on a microcontroller, a compact computer capable of running a single program continuously This setup provides a user-friendly circuit board for managing repetitive tasks, such as heart rate monitoring and sensor runtime control To monitor and control the device remotely, we'll need a platform or API We've decided to use the free domain name registration and hosting service provided by 000webhost due to its simplicity and affordability This service will serve as the primary server and enable us to create a dynamic website interface that facilitates data transmission via the HTTP protocol, accessible on various devices wherever internet connectivity is available As 000webhost is a free hosting service, we have the flexibility to utilize PHP and MYSQL source code, along with technologies like HTML, CSS, JS, AJAX, and JQUERY, to craft a comprehensive website with the ability for customization This will allow us to control the system and test devices via the internet Thus, we've chosen to integrate the Arduino IDE with the C++ programming language and 000webhost to construct the system The Arduino Software (IDE), which is free and open source, simplifies data encoding and uploading to the website This IDE can be used with any Arduino board Framework: • ESP8266 A collection of modules called the ESP8266 IoT Framework can be used as a basis for new ESP8266 projects It implements OTA updates, WiFi management, a React web interface, HTTPS requests, and a live dashboard The framework consists of five key components: a web server, including classes for handling HTTP requests and OTA updates, a WiFi manager, a configuration manager, and the user interface it supports The diagram provided below offers a visual representation of the framework's structure Figure 1: Framework ESP8266 The development of this framework was guided by the following fundamental principles: - The framework is built upon the ESP8266 Arduino libraries It does not include features for controlling external hardware The framework is designed for straightforward deployment as it is selfcontained and does not rely on LittleFS or SPIFFS storage It maintains a strict separation between the web interface via an API and the ESP8266 application By utilizing this framework, the device can collect user data, transmit it to a server, and perform health diagnostics to notify the user or their family members about their health condition • Adafruit: The device will utilize sensors to measure both blood oxygen levels and heart rate To achieve the desired functionality, we require the Adafruit framework Adafruit is well-known for offering open-source libraries and hardware compatible with a wide range of microcontrollers and sensors, including the ones utilized by our team Figure 2: Framework adafruit Hardwares of this IoT project: Name ESP8266 Image Max30100 Display Oled 0.96 inch Breadboard Description The ESP8266 is a Wi-Fi module capable of connecting to the Internet and is commonly used to implement IoT applications It helps us connect with Max30100 sensor and other device to collect data like oled screen Which then allows me to stream the data to the web server The MAX30100 is a popular integrated pulse oximetry and heart-rate monitor sensor module It is commonly used for non-invasive measurement of heart rate and blood oxygen saturation (SpO2) The MAX30100 sensor utilizes red and infrared light to measure the amount of oxygen in the blood and detect heart rate A 0.96-inch OLED display is a small organic light-emitting diode (OLED) screen that measures 0.96 inches diagonally These displays are known for their high contrast, excellent color reproduction, and low power consumption We use them to display the measurement data of the Max30100 sensor on the screen A common term for an electronics prototyping platform is a breadboard or protoboard, which is employed for linking wires to hardware Develop the solution All of the mentioned hardware components will form an interconnected smart heart rate monitoring system, accessible through a WiFi connection Since the entire system will operate online, users can conveniently assess its functionality and performance prerequisites using various smart devices like computers, smartphones, tablets, or other similar gadgets by simply visiting the following web link: https://iotg2gch1106.000webhostapp.com/home.php Utilizing this hardware, the smart heart rate monitoring system will gather data regarding an individual's heart rate and blood oxygen levels This data will then be transmitted via the Internet to the 000Webhost server Subsequently, an API will process this data and relay it back to the user's computer, which is responsible for displaying the information on the project's website interface This interface allows access through a range of internet-connected devices, including smartphones, tablets, laptops, and more Pulse Oxygen Measurement: The MAX30100 sensor measures blood oxygen saturation (SpO2) and heart rate by shining light through the skin and measuring the amount of light absorbed by oxygenated and deoxygenated hemoglobin The MAX30100 communicates with the microcontroller and other devices using the I2C communication protocol So we have developed and integrated into Internet of Things (IoT) applications for remote health monitoring, allowing real-time data transmission Its data will be displayed on the OLED screen and on our hospital website, on the website heart rate parameters data will be analyzed and given high, low, normal warning status Hardware configuration: The assembly of the MAX30100 Pulse Oximeter Webserver on a NodeMCU is straightforward The MAX30100 Oximeter Sensor operates through the I2C bus, so you just need to link the I2C pins (SCL and SDA) of the oximeter module to the D1 and D2 pins on the NodeMCU Connect the INT pin to the NodeMCU's D0 pin Likewise, supply 3.3V power to the VCC and ground the GND pin After finishing config, we have product: Figure 3: Demo products Source code/Program: I use Arduino sketch that interfaces with a MAX30100 Pulse Oximeter sensor and an OLED display, and it sends the sensor data to a remote server over Wi-Fi These are the libraries I use in the project: These lines include several libraries required for the project These libraries provide functionality for I2C communication, OLED display control, Wi-Fi connectivity, and interfacing with the MAX30100 Pulse Oximeter sensor • Constants and Variables: These are constant values defining the reporting period for sensor data (600 milliseconds), the interval for sending data to the server (15 seconds), and a delay after sending data (0.5 seconds) The loop function is the main execution loop It continuously reads data from the sensor, displays the data, and sends it to the server at specified intervals • Other Functions: initializeDisplay(): Sets up and initializes the OLED display initializeSensor(): Initializes the Pulse Oximeter sensor gettingSensorData(): Updates and processes data from the sensor displaySensorData(): Displays sensor data on the OLED screen sendDataToServer(): Sends the BPM and SpO2 data to the remote server using an HTTP POST request The code implements a basic IoT setup to collect and send pulse oximeter data to a remote server via Wi-Fi The sensor data is displayed on an OLED screen This code assumes that you have the required hardware components and libraries installed for the project to function properly • HTTP Website: My task in the group is to design the website for this project Therefore, I chose the 000Webhost server hosting service to push my website to the host so users can access it via the internet application I use PHP, MySQL source code along with technologies such as CSS, Boostrap, JQuery, AJax to create a complete website called Hospital Figure 4: Hosting service of our project Figure 5: All files in my website project Figure 6: Example source code PHP in project website II Video and test product By closely following the connectivity guidelines described earlier and using the provided code, the device is ready to function without any issues A product demonstration is available through Google Drive; to access it, please click on the link provided Product Here we introduce our team's groundbreaking product called the 'Heart Rate Sensor.' By placing your finger on the device's red light emitter (MAX30100), it swiftly records your current heart rate and oxygen levels in real-time These crucial data points will then be displayed on the device's screen for user convenience and monitoring Figure 7: Final product Moreover, the data will be sent to a web server at 15-second intervals, enabling others to access it by visiting a designated website Website When users access the website link: https://iotg2gch1106.000webhostapp.com/home.php The screen will move to the following interface Here users can explore website information, view the history of measurements, or see an introduction to the website, or can send feedback to us right on the website Figure 8: Home page When the user clicks on the health monitor section on the home page, they will be redirected to the monitoring interface, where the user will see someone's most recent measurements This is where website data is displayed When the user places their hand on the product's sensor, the data will be displayed on the screen and pushed to this website Figure 9: Health monitor page When the user clicks on the health log section on the home page, the user will be redirected to the history log page, which will display all the measurement schedules of the product user so far Figure 10: HistoryLog page When users click on the word contact on the navbar, they will be redirected to the contact page, where they can contact us, as well as review the product These feedback will be sent to my email for me to read and provide a complete solution for the website Figure 11: Contact page Figure 12: Feedback of user from website In addition to the above pages, users can also click on the word learn More or the patient section to take a closer look at the website and products Figure 13: Product introduction and calculation formula The perfect and incomplete points in our system Perfection: Supporting the progress of the solution, the system will have certain benefits and limitations The first value of technology is to help customers manipulate the environment with precise numbers and monitor health remotely and via the Internet From the status of measurements on the website, they can know their health status and go to medical centers This system is intuitive yet useful, providing many benefits Non-Flaws: There are a number of nits, including the possibility of system failure without any warning to the user Using an internet connection that is too weak or having many people accessing the website will cause the website to be delayed This is an issue that we must consider to fully develop the system C Task 2: Test and Evaluate the user feedback (P7 – M6) Run end user experiments and examines feedback In this portion, I will delve into the user feedback information gathered through a Google Form survey to gain deeper insights into what users think about our product