## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering ## Level: Diploma ## Branch: Electrical Engineering / Renewable Energy ## Subject Code: DI05000201 Subject Name: Embedded & IoT Systems w. e. f. Academic Year: 2026-27 Semester: 5 th Category of the Course: PEC - III | Prerequisite: | Basic knowledge of electronic components, digital logic, and elementary programming concepts (C / C++). | |-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Rationale: | The rapid convergence of embedded computing and the Internet of Things (IoT) is transforming every sector of the electrical industry - from smart homes and wearable health monitors to GPS-based asset tracking and real-time industrial dashboards. This subject is designed to equip students with practical, job-ready skills in two industry-relevant platforms: the Raspberry Pi (a Linux-based Single Board Computer ideal for edge processing and dashboards) and the ESP32 (a powerful Wi-Fi/Bluetooth microcontroller ideal for low-cost IoT nodes). | ## Course Outcomes : After Completion of the Course, Student will be able to: | CO No. | Course Outcomes | RBT Level* | |-----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------| | 01 | Identify the hardware parts, GPIO pins, and operating system of Raspberry Pi and write simple Python programs to control basic output devices. | U, A | | 02 | Connect sensors and output devices to ESP32, write basic programs in Arduino IDE, and send sensor data to a cloud platform using Wi-Fi. | U, A | | 03 | Use Raspberry Pi and ESP32 together to set up and testIoT applications such as home automation, health monitoring, location tracking, and a live data dashboard. | A | *Revised Bloom's Taxonomy (RBT) ## Teaching and Examination Scheme: | Teaching Scheme (in Hours/Week) | Teaching Scheme (in Hours/Week) | Teaching Scheme (in Hours/Week) | Total Credits L+T+(PR/2) | Assessment Pattern and Marks | Assessment Pattern and Marks | Assessment Pattern and Marks | Assessment Pattern and Marks | Total Marks | |------------------------------------|------------------------------------|------------------------------------|-----------------------------|--------------------------------|--------------------------------|--------------------------------|--------------------------------|----------------| | L | T | PR | | Theory | Theory | Tutorial / Practical | Tutorial / Practical | | | | | | C | ESE (E) | PA(M) | PA(I) | ESE (V) | | | 3 | 0 | 2 | 4 | 70 | 30 | 20 | 30 | 150 | ## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering ## Level: Diploma ## Branch: Electrical Engineering / Renewable Energy Subject Code: DI05000201 Subject Name: Embedded & IoT Systems ## Course Content: | Unit No. | Content | No. of Hours | % of Weightage | |-------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------|-------------------| | 1 | Introduction to Raspberry Pi 1.1 Introduction toRaspberry PiArchitecture:  Difference between Single Board Computers (SBCs) and microcontroller;  Why Raspberry Pi for IoT;  Overview of Raspberry Pi models (3B+, 4B, 5);  Hardware specifications (CPU, RAM, USB, HDMI, Ethernet, GPIO) 1.2 Hardware Architecture and GPIO Pinout:  Block diagram of Raspberry Pi;  40-pin GPIO layout;  Digital I/O, PWM, I2C, SPI, UART pins;  Safe voltage levels (3.3 V logic);  LED and relay interfacing basics 1.3 Operating System Setup and Linux Basics:  Installing Raspberry Pi OS (Raspbian) using Raspberry Pi Imager;  Headless setup (SSH, VNC);  Essential Linux terminal commands (ls, cd, mkdir, nano, apt, sudo, reboot);  File management andRunning scripts at startup 1.4 Python Programming for Hardware Control:  Python basics - variables, data types, loops, functions, libraries;  RPi.GPIO library for digital I/O;  Reading sensors (DHT11 temperature/humidity);  Controlling output devices (LEDs, buzzers, relays);  Thonny IDE usage 1.5 Communication Interfaces and Data Logging:  I2C protocol, SPI protocol and UART communication;  Logging sensor data to CSV files; | 15 | 33% | | 2 | Introduction to ESP32 2.1 Introduction to ESP32 Architecture:  ESP32 vs Arduino UNO vs Raspberry Pi;  ESP32 Pinouts and Peripherals;  Power consumption and battery-operation suitability | 15 | 33% | https://syllabus.gtu.ac.in/ Page 2 of 8 ## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering ## Level: Diploma ## Branch: Electrical Engineering / Renewable Energy ## Subject Code: DI05000201 Subject Name: Embedded & IoT Systems | | 2.2 Development Environment and Programming:  Setting up Arduino IDE for ESP32;  Installing ESP32 board package;  Uploading and testing code;  Introduction to MicroPython on ESP32 using Thonny;  Basic programs - digital output, PWM, analog read;  Serial Monitor for debugging 2.3 Sensor Interfacing with ESP32:  Interfacing DHT11 / DHT22 (temperature, humidity);  LDR (light sensor);  Ultrasonic sensor (HC-SR04) for distance;  MQ-2 gas/smoke sensor;  Pulse sensor for heart rate;  GPS module (Neo-6M) for location data;  Displaying readings on OLED/LCD 2.4 Wi-Fi Connectivity and IoT Communication Protocols:  Station mode and Access Point mode;  Connecting ESP32 to Wi-Fi network;  HTTP GET/POST requests to cloud platforms;  Sending sensor data to ThingSpeak / Blynk IoT 2.5 ESP32 Web Server:  Creating a local web server on ESP32;  Controlling GPIOs via browser; | | | |----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----|-----| | 3 |  Real-time sensor data display on web page Embedded IoT Applications 3.1 Home Automation System:  What is home automation and why it is useful;  Block diagram of a simple home automation system (ESP32 as controller, relay as switch, appliance as load);  Introduction to Blynk IoT app - adding buttons and sliders to control devices from mobile;  Practical demonstration of switching two appliances ON/OFF from a mobile app 3.2 Wearable Health Monitoring Device:  What is a wearable device and its use in health monitoring;  Sensors used: MAX30102 (heart rate and SpO2) and DHT11 (temperature);  Understanding the output - what is a normal vs. abnormal reading; | 15 | 34% | Page 3 of 8 ## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering ## Level: Diploma ## Branch: Electrical Engineering / Renewable Energy ## Subject Code: DI05000201 Subject Name: Embedded & IoT Systems |  Simple threshold alert: if heart rate is too high, light up a red LED 3.3 GPS-Based Location Tracking System:  What is GPS and how it works (satellites, signals, location fix);  GPS module Neo-6M - connecting to ESP32 via UART (Tx, Rx, VCC, GND);  Reading latitude and longitude from Serial Monitor using TinyGPS++ library;  Understanding the output data - what latitude and longitude mean;  Entering coordinates manually on Google Maps to verify the location;  Use cases: school bus tracking, vehicle location, farm equipment monitoring 3.4 Real-Time Data Collection and Dashboard:  Concept of a data dashboard - seeing live sensor values in one place;  Introduction to Node-RED on Raspberry Pi - drag-and-drop visual programming;  Adding an MQTT input node and a gauge/chart widget in Node- RED to display sensor data;  Setting up a simple alert: when temperature crosses a set value light up Red LED | | | |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----|------| | Total | 45 | 100% | ## Suggested Specification Table with Marks (Theory): ## Distribution of Theory Marks (in %) | R Level | U Level | A Level | N Level | E Level | C Level | |-----------|-----------|-----------|-----------|-----------|-----------| | 20 % | 30 % | 50 % | 00 | 00 | 00 | Where R: Remember; U: Understanding; A: Application, N: Analyze and E: Evaluate C: Create (as per Revised Bloom's Taxonomy) ## References/Suggested Learning Resources: ## (a) Reference Books: 1. Rahul Dubey, "An Introduction to Internet of Things: Connecting Devices, Edge Gateway, and Cloud with Applications", Cengage India Publication ## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering ## Level: Diploma ## Branch: Electrical Engineering / Renewable Energy ## Subject Code: DI05000201 ## Subject Name: Embedded & IoT Systems | 2. | Raj Kamal, "Internet of Things: Architecture and Design Principles", McGraw Hill Education | |------|--------------------------------------------------------------------------------------------------------------------------------------------| | 3 | Hanes et al., "IoT Fundamentals", Cisco Press | | 4 | Vijay Madisetti and Arshdeep Bahga, "Internet of Things (A Hands-on Approach)", Paperback, 2015 | | 5 | A. McEwen, H. Cassimally, "Designing the Internet of Things", Wiley, 2013 | | 6 | Donald Norris, "The Internet of Things: Do It Yourself Projects with Arduino, Raspberry Pi and BeagleBone Black", McGraw Hill Publication | | 7 | Adeel Javed, "Building Arduino Projects for Internet of Things", Apress Publication | ## (b) Learning Websites &mobile applications: | Sr. | Web-Link / Portal | Description | |-------|----------------------------------------------|-------------------------------------------------------------------------------------------| | 1 | https://www.raspberrypi.com/documentation/ | Official Raspberry Pi Documentation - hardware, OS setup, Python GPIO, projects | | 2 | https://docs.espressif.com/projects/esp-idf/ | Official ESP32 documentation by Espressif Systems - detailed hardware and API reference | | 3 | https://randomnerdtutorials.com/ | Extensive step-by-step tutorials on ESP32, Raspberry Pi, Arduino, and IoT projects | | 4 | https://nodered.org/docs/ | Official Node-RED documentation - flow editor, dashboard, MQTT, integrations | | 5 | https://thingspeak.com/ | ThingSpeak IoT analytics platform - free cloud for sensor data storage and visualization | | 6 | https://www.kraj.in/raspberry-pi/ | Step-by-step tutorials on Raspberry Pi. | | 7 | https://www.youtube.com/@krajchannel | Explaining Raspberry Pi tutorials in Gujarati. | | 8 | Android App: Kraj | Embedded & IoT Systemsstudy material in Gujarati. | Suggested Course Practical List: Each week includes one lab sessions (2 hours), designed such that they complement theory topics, means each experiment directly supports the classroom teaching. | Sr. No. | Practical Outcome/Title of experiment | Unit/ CO | Approx. Hours | |------------|----------------------------------------------------------------------------------------------------------------------------------------|-------------|------------------| | 1 | Install Raspberry Pi OS on a microSD card using Pi Imager; perform headless SSH login and explore Linux terminal commands. | CO1 | 2 | ## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering ## Level: Diploma ## Branch: Electrical Engineering / Renewable Energy ## Subject Code: DI05000201 Subject Name: Embedded & IoT Systems | 2 | Write Python programs using RPi.GPIO to blink LEDs and control a relay module (simulating appliance ON/OFF). | CO1 | 2 | |-----|---------------------------------------------------------------------------------------------------------------------------------------------------------|-------|-----| | 3 | Interface DHT11 / DHT22 sensor with Raspberry Pi and log temperature & humidity data to a CSV file every 10 seconds. | CO1 | 2 | | 4 | Connect an I2C-based sensor (BMP180 or MPU6050) to Raspberry Pi; display readings on 16x2 LCD using Python. | CO1 | 2 | | 5 | Set up ESP32 development environment in Arduino IDE; upload basic programs - LED blink, PWM fade, analog read. | CO2 | 2 | | 6 | Interface DHT22 and MQ-2 gas sensor with ESP32; display values on OLED display. | CO2 | 2 | | 7 | Connect ESP32 to Wi-Fi (Station mode); publish DHT22 sensor data to ThingSpeak cloud platform and observe live graph. | CO2 | 2 | | 8 | Build an ESP32 web server; control two relay outputs and view live sensor data from a mobile browser. | CO2 | 2 | | 9 | Interface GPS module (Neo-6M) with ESP32 via UART; display latitude, longitude, and fix status on Serial Monitor using TinyGPS++ library. | CO3 | 2 | | 10 | Upload ready-made Blynk home automation code to ESP32; add two button widgets in Blynk app; test switching relay outputs ON/OFF from mobile. | CO3 | 2 | | 11 | Connect MAX30102 to ESP32; upload example library code; read and display heart rate and SpO2 on Serial Monitor and OLED. | CO3 | 2 | | 12 | Install Node-RED on Raspberry Pi; add MQTT input node and two gauge widgets; receive and display temperature and humidity data from sensors. | CO3 | 2 | | 13 | Send DHT22 sensor data from ESP32 to ThingSpeak channel via Wi-Fi; observe live temperature and humidity graphs on ThingSpeak dashboard. | CO3 | 2 | | 14 | Mini Project: Select any one application (home automation / health monitor / GPS tracker / dashboard); set up the hardware using given reference code; | CO3 | 4 | modify threshold values; document with block diagram, circuit photo, and screenshot of output. Subject In-charge may add further practicals within the framework of the COs. ## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering ## Level: Diploma ## Branch: Electrical Engineering / Renewable Energy ## Subject Code: DI05000201 Subject Name: Embedded & IoT Systems ## Suggested List of Laboratory / Learning Resources Required: | Sr. No. | Equipment / Resource Name with Specifications | |------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 1 | Raspberry Pi 4 Model B (4 GB RAM) - with 32 GB Class 10 microSD card, official USB-C power supply, HDMI cable, cooling case. (One per 2 students recommended) | | 2 | ESP32 Development Boards (NodeMCU-ESP32S or DOIT ESP32 DevKit V1) with built-in Wi-Fi & Bluetooth - minimum 10 boards per lab batch. | | 3 | Sensor Kit per bench: DHT22 (temp/humidity), MQ-2 (gas), HC-SR04 (ultrasonic), LDR, BMP180 (pressure), MPU6050 (accelerometer/gyroscope) | | 4 | Health Monitoring Sensors: MAX30102 Pulse Oximeter module (for wearable application practical) | | 5 | GPS Module: Neo-6M with antenna - for location tracking practical | | 6 | Display Modules: 16x2 LCD (I2C), 0.96" OLED I2C modules | | 7 | Relay Modules: 2-channel and 4-channel 5 V relay modules with optocoupler isolation for appliance control | | 8 | Wi-Fi Router: Dedicated lab Wi-Fi router (2.4 GHz) for creating isolated IoT lab network | | 9 | Computers / Laptops: Pre-installed with Raspberry Pi Imager, Arduino IDE (with ESP32 board package), Thonny IDE, PuTTY, VNC Viewer, Node-RED, Mosquitto MQTT Broker | ## Suggested Activities / Project List: ## 1. Raspberry Pi ## Reports / Seminars / Presentations: - Comparison of Raspberry Pi models and their suitability for different applications - Applications of Raspberry Pi in smart home and industrial IoT ## Projects / Activities / Demonstrations: - Build a weather station using Raspberry Pi that logs temperature, humidity, and pressure to a local database every minute - Design a home energy monitor: read appliance current via ACS712 sensor ## GUJARAT TECHNOLOGICAL UNIVERSITY ## Program Name: Diploma Engineering Level: Diploma ## Branch: Electrical Engineering / Renewable Energy Subject Code: DI05000201 Subject Name: Embedded & IoT Systems ## 2. ESP32 ## Reports / Seminars / Presentations: - Technical comparison: ESP32 vs ESP8266 vs Arduino Uno vs Raspberry Pi Pico - Understanding MQTT protocol - how it powers IoT at scale - Survey of cloud IoT platforms: Blynk, ThingSpeak, AWS IoT, Azure IoT Hub ## Projects / Activities / Demonstrations: - Design a battery-powered ESP32 soil moisture sensor that wakes every 15 minutes, takes reading, publishes to cloud, and sleeps (deep sleep demo) - Create a smart energy saving demo: ESP32 controls fan speed with PWM based on temperature sensor reading ## 3. Raspberry Pi and ESP32 Applications ## Reports / Seminars / Presentations: - How IoT is used in hospitals - patient monitoring systems and smart health bands - GPS tracking in everyday life - school buses, delivery vehicles, and personal safety apps - Smart homes in India - available products, their cost, and how they work - How mobile apps like Blynk are used to control electrical devices wirelessly ## Projects / Activities / Demonstrations: - Home automation demo: control a light bulb and fan using Blynk app on mobile via ESP32 and relay - test ON/OFF switching - Health monitor demo: display heart rate and SpO2 from MAX30102 on OLED; send readings to ThingSpeak and view the graph - GPS demo: connect Neo-6M to ESP32, read and print coordinates on Serial Monitor, and verify location on Google Maps - Dashboard demo: set up a simple Node-RED dashboard on Raspberry Pi to show temperature and humidity gauges from ESP32 via MQTT ***********