ESP32 Course: IOT and Embedded systems

Name: ESP32 Course: IOT and Embedded systems
Rating: 4.0 (10 reviews)

A Hands-on Guide to ESP32 and IoT Using Wokwi for Simulation and Prototyping

Created byShekhar Nandanwar

Last updated 2/2025

English

English [Auto],

What you'll learn

Understanding ESP32 and its features
Working with WOKWI (browser based simulation)
Writing the code for ESP32
Interfacing sensors and understanding them
Working on multiple projects

Course content

6 sections • 28 lectures • 2h 15m total length

Introduction to ESP325:00
Explore the ESP32, a versatile dual-core microcontroller for IoT and embedded projects, featuring Wi-Fi, Bluetooth, ADC/DAC, built-in peripherals, generous software support, and widespread community.
ESP32
Introduction to Wokwi3:28
Explore Wokwi, a free browser-based virtual simulation platform for designing and testing electronics with ESP32 and other microcontrollers; build circuits, write code, run real-time simulations, and share projects.
Wokwi interface10:53
Explore Wokwi, a web-based ESP32 and microcontroller simulator, to build Arduino and Micropython IoT projects, wire circuits, run Wi-Fi simulations, and leverage libraries for projects without hardware.
Wokwi simulation

Led Blinking tutorial2:29
Blink an led on the ESP32 by wiring it to a GPIO output and uploading code, then simulate the blink; learn current flows from anode to cathode.
Blinking an LED8:48
Learn to blink an LED on the ESP32 by wiring it to digital pin 12 with a resistor and blinking via pinMode and delay in the starter sketch during simulation.
Quiz on led topic
Reading button states (pull up and pull down concepts)4:31
Read the state of a push button on the ESP32 using GPIO 14 with an internal pull-up, and light an LED on GPIO 23 when pressed, with debouncing.
Button control using esp32
PWM concept1:03
Explore how pulse width modulation controls led brightness and motor speed by varying the duty cycle, and learn the three PWM parameters: resolution, duty cycle, and frequency.
Controlling brightness of LED and PWM4:32
Learn to control an led’s brightness on the ESP32 using pwm on gpio 16, producing a smooth fade from 0 to 255 with a 30 ms delay.
PWM and LED brightness
Reading analog values using ADC3:58
Learn how to read analog values with the Esp32 adc using a potentiometer on gpio 34 at 3.3v, and view 12-bit readings (0-4095) in the serial monitor.
ADC and analog concept
LED dimmer using a potentiometer (Project 1)4:24
Explore how to build an ESP32 based potentiometer control system in a simulator to adjust led brightness using an analog input and pwm output.

DHT22 sensor features2:22
Explore the dht22 digital sensor, aka am2302, for temperature and humidity with a -40°C to 80°C range, 0–100% humidity, and single-wire digital output.
Reading temperature and humidity (DHT22)3:17
Learn to read temperature and humidity with ESP32 using DSP library and the DHT22 sensor. Wire VCC to 3.3V, data to GPIO15, and read every two seconds with serial output.
Sensor and its data
Distance measurement using ultrasonic sensor (HC-SR04)3:49
Learn to measure distance with HC-SR04 ultrasonic sensor on ESP32 in a walkway simulation by timing echoes with pulseIn and calculating distance from duration, displayed on the serial monitor.
Servo motor explanation3:09
Explore how servo motors achieve precise angular positioning through PWM control, potentiometer feedback, and closed-loop control, with three wires (power, ground, signal) and key traits like accuracy, speed, and torque.
Servo motor control3:20
Learn servo motor control with the ESP32. Wire VCC to 5V, ground to ground, and the signal to GPIO 13 using the ESP32 servo library for precise angular movement.
Servo Controlled by a Button
Stepper motor with A4988 driver4:21
Control a stepper motor with an ESP32 and an A4988 driver by sending step and direction signals, wiring GPIO 16 and GPIO 17, and adjusting speed with microsecond delays.

OLED display fundamentals3:11
Explore the fundamentals of OLED displays, including low power, high contrast, and no backlight, with ITC and SPI interfaces and models like SSD1306 and SH1106.
Connecting an OLED display (I2C)5:48
Connect Esp32 to 128x64 I2C OLED display, wire SDA to a GPIO and SCL to GPIO 22, then initialize display with Wire, Adafruit GFX, and SSD1306 to show hello Esp32.
I2C and OLED display
3. Hands-on Project: Weather display using an OLED and DHT sensor.6:50
Build a simple esp32 temperature and humidity monitor using the dht22 sensor and an oled display, connected via i2c with no wifi, and tested through browser-based simulation.
Sending and receiving serial data2:30
Learn to send and receive serial data with the Esp32 using the walkway simulator. Initialize serial communication at a baud rate and echo received data back to the serial monitor.

Load cell and HX711 tutorial1:42
Explore how a load cell and the hx711 24-bit adc measure weight, calibrate with a known weight, compute the calibration factor, and update set_scale for accurate weighing and robotics.
Interfacing HX711 load cell with ESP325:12
simulate a hx711 load cell with esp32 by wiring pins 16 and 4, using the hx711 library, calibrating with a factor, and reading weight in kilograms via the serial monitor.
Load cell hx711
DS1307 RTC2:19
DS1307 real time clock, a low-power RTC with a 32.768 kHz crystal that tracks seconds through year 2100 and uses battery backup for power loss.
Building a Digital Clock with DS1307 RTC and ESP32 on LCD Display6:58
Wire the Ds1307 rtc to the Esp32 (sda to gpio 21, scl to gpio 22) and display the current time on the 16x2 lcd, updating every second.
Digital clock using esp32
4-digit seven segment display (countdown timer)6:40
Build a 4-digit countdown timer with an ESP32 and a TM1637 display, starting from 60, wiring data to GPIO4, clock to GPIO5, and using the time 1637 library.
Interfacing TFT display5:23
Learn to display text and graphics on a 2.8-inch ILI9341 TFT with ESP32 using the Adafruit GFX and ILI9341 libraries over SPI, including TFT initialization and simple boxes.
TFT display

Project 1 ((Stepper motor speed controller)10:26
Control a stepper motor's speed with an ESP32, a potentiometer, and an A4988 driver, display real-time rpm on an OLED, and simulate the setup in walkway.
Project 2 (Smart Password protected system)8:42
Build a smart password protected door lock using an ESP32, keypad, servo, and a 16x2 LCD with I2C, showcasing password handling and lock/unlock feedback.

Requirements

Basic understanding of Electronics

Description

Welcome to IoT and Embedded Systems with ESP32 using Wokwi!

This beginner-friendly course will help you get started with the ESP32 microcontroller and learn how to create simple IoT projects with Wokwi, a powerful online simulation tool. Whether you're completely new to electronics or have some basic experience, this course will guide you step by step in building your first connected devices.

What You’ll Learn:

Getting Started with ESP32: Introduction to the ESP32 microcontroller and its features like Wi-Fi and Bluetooth, low power consumption etc.
Using Wokwi for Simulations: How to simulate circuits, including LEDs, buttons, sensors, and more, in a virtual environment which is the Wokwi platform.
Basic Embedded Programming: Writing simple code for the ESP32 using the build in wokwi IDE to interact with sensors and actuators and perform simulation and do projects.
Building IoT Projects: Create projects like LED control, temperature monitoring, and sensor-based automation. Add it to your academic and create complex projects.

Why This Course?

No Hardware Required: You can learn and build projects using Wokwi’s simulation tool without needing to purchase components and arrange them in circuit.
Beginner-Friendly: The course is designed for absolute beginners with no prior experience needed in IoT or embedded systems.
Hands-On Projects: You’ll complete practical projects that reinforce what you learn and give you the confidence to start building your own IoT systems.

By the end of this course, you will have a solid understanding of the basics of ESP32 programming, and you’ll be ready to start building your own IoT projects — all with the help of Wokwi’s simulation environment!

Why wait ! Join today and begin your journey into the world of IoT and embedded systems with the ESP32!

Who this course is for:

This course is designed for anyone who wants to get hands-on experience with ESP32 and IoT, whether you're a beginner looking to explore the world of embedded systems or an experienced professional wanting to expand your skill set.

ESP32 Course: IOT and Embedded systems

What you'll learn

Explore related topics

Course content

Introduction3 lectures • 19min

Basics of GPIO and Digital I/O7 lectures • 30min

Working with sensors and actuators6 lectures • 20min

Communication Protocols4 lectures • 18min

Interfacing sensors and peripheral device6 lectures • 28min

Projects2 lectures • 19min

Requirements

Description

Who this course is for: