01

ESP8266 Introduction

ESP8266 NodeMCU Pinout
ESP8266 NodeMCU microcontroller pinout and GPIO configuration

Introduction to ESP8266

  • Learned about ESP8266 microcontroller, its pinout, specifications, and use in IoT projects
  • Understanding GPIO pin mapping and pin functions
  • Wi-Fi capabilities and IoT applications overview
  • Power requirements and operating voltage specifications

Arduino IDE Setup

  • Step-by-step installation and configuration for programming ESP8266
  • Software setup and system requirements
  • Initial configuration and interface familiarization
  • Added ESP8266 board manager URL and installed required libraries
  • Board package installation and configuration process
Mini Programming Projects: Wrote and uploaded first programs to blink onboard and external LEDs, establishing fundamental ESP8266 programming skills.
02

Wi-Fi Setup & Web Server

ESP8266 Web Server
ESP8266 web server interface for remote LED control

Wi-Fi in IoT

  • Learned how Wi-Fi enables IoT communication and networking basics (IP, SSID, password)
  • Understanding network protocols and connectivity requirements
  • IoT device communication fundamentals
  • Network security considerations for IoT applications

Web Server Implementation

  • Connected ESP8266 to a Wi-Fi network successfully
  • Network configuration and connection verification methods
  • Troubleshooting connectivity issues and debugging techniques
  • Created a basic web page hosted on ESP8266 to control LED ON/OFF via browser
Wi-Fi Programming Projects

Practical Implementation: Successfully connected ESP8266 to Wi-Fi and created a functional web server for remote device control, establishing the foundation for IoT applications.

03

Sensor Integration

Ultrasonic Sensor with ESP8266
Ultrasonic sensor HC-SR04 interfacing with ESP8266 for distance measurement

Ultrasonic Sensor Integration

  • HC-SR04 sensor working principles and technical specifications
  • Sensor wiring connections and pin configurations
  • Distance calculation using ultrasonic wave propagation
  • Sensor accuracy considerations and environmental factors

Real-time Data Processing

  • Interfaced ultrasonic sensor and measured distance
  • Printed sensor results in Serial Monitor for debugging
  • Displayed live sensor data on a web page for real-time monitoring
  • Data visualization and presentation techniques
Sensor Programming Projects: Successfully integrated HC-SR04 ultrasonic sensor with ESP8266, implemented real-time distance measurement, and created a live web interface for monitoring sensor data.
04

Mobile App Development

MIT App Inventor
MIT App Inventor platform for visual mobile app development

MIT App Inventor Setup

  • Installed and explored App Inventor interface
  • Account setup and project creation workflow
  • Understanding the visual programming environment
  • Component palette and design interface navigation

App Design & Integration

  • Created a simple mobile app to display sensor data and control outputs
  • User interface design with interactive elements and data visualization
  • Block-based programming for app logic and functionality
  • Connected the app with ESP8266 and successfully tested data transfer
Mobile App Integration Project

Complete IoT Solution: Successfully integrated mobile app with ESP8266, enabling real-time sensor data transmission and remote device control, creating a complete end-to-end IoT solution.