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ESP32 MicroPython for IoT: Step by Step Projects to Build Sensors, Web Dashboards, and Smart Home Devices
Paperback
General ComputersIndustrial Design
Publisher: Independently Published
Published: Sep 7 2026
Pages: 246
Weight: 0.95
Height: 0.52 Width: 7.00 Depth: 10.00
Language: English
You don't need to be an electrical engineer or an expert Python programmer to start building useful IoT devices.
ESP32 MicroPython for IoT takes you from your first MicroPython program to complete connected projects involving sensors, web dashboards, MQTT, Wi-Fi, asynchronous programming, and smart-home integration.
Instead of learning isolated commands and copying disconnected examples, you'll learn how software and hardware work together-one practical step at a time.
Starting with the fundamentals, the book shows you how to flash MicroPython onto an ESP32, communicate with the board, control GPIO pins, read buttons and sensors, and gradually build toward more sophisticated systems. Along the way, you'll develop the habits needed to troubleshoot real hardware and software problems rather than simply hoping that your circuit works.
Inside the book, you'll learn how to:- Set up an ESP32 development environment and install MicroPython
- Write Python specifically for resource-constrained microcontrollers
- Work with GPIO, PWM, ADC, I2C, and SPI
- Connect and read data from sensors
- Control LEDs, buzzers, relays, motors, and other actuators
- Build local web interfaces that display live device data
- Use asynchronous programming to handle multiple tasks without constantly blocking your device
- Connect ESP32 devices to Wi-Fi networks reliably
- Create an ESP32 access point for local device interaction
- Use MQTT to publish sensor data and integrate devices with smart-home systems
- Understand when ESP-NOW makes more sense than MQTT for direct device-to-device communication
- Design applications that combine sensors, networking, web servers, and background tasks
Rather than stopping after the basics, the book takes you into complete projects that demonstrate how the individual concepts fit together in a real IoT system.
You'll build a Smart Environmental Monitor capable of collecting environmental data, displaying information through an RGB indicator and local web dashboard, and publishing readings through MQTT.
You'll also explore a Battery and Power Monitor, learning how to measure voltage and current, present live power information, and create useful alerts.
Finally, you'll build a Wi-Fi Relay and Motor Controller, bringing networking, web control, relay switching, and motor control together into a practical embedded application.
Designed for people who want to build, not just read.This book is for beginners who want a practical introduction to ESP32 and MicroPython, Python programmers moving into embedded development, electronics hobbyists who want to add networking and software to their projects, makers building IoT prototypes, and students who learn best by working through real examples.
You don't have to know everything before you begin. The material is introduced progressively, so concepts that initially seem unfamiliar become useful tools as your projects become more capable.
Learn the thinking behind the projects.One of the biggest challenges in embedded development isn't writing a few lines of code-it's understanding why a device behaves differently from what you expected.
That's why this book emphasizes practical debugging, safe wiring, resource limitations, blocking operations, memory management, networking failures, and the importance of testing each layer of a system independently.
By the end, you won't simply have a collection of MicroPython examples. You'll have a practical foundation for designing, building, testing, and extending your own ESP32-based IoT devices.
If you're ready to move beyond blinking LEDs and start building connected devices that actually do something useful, this book gives you a practical place to begin.
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