Master New Skills with 5-Minute Bite-Sized Learning Modules

Start your journey for free.

hardware Intermediate 21 lessons

ESP32 WiFi/Bluetooth

Build connected devices. Master the ESP32 microcontroller to create web servers, use Bluetooth (BLE), and connect to the cloud.

The ESP32 is the powerhouse of IoT. This course moves beyond Arduino to dual-core networking. You will learn to use the ESP32 to host web servers, make API calls, and communicate via Bluetooth Low Energy (BLE). We cover deep sleep modes for battery-powered applications, Over-the-Air (OTA) updates, and using FreeRTOS features on the chip. Perfect for building smart home devices or connected sensors.

✅ 100% Free & Lifetime Access
⏱️ 5-Minute Lessons (Bite-sized learning)
🚀 21-Lesson Path (Independent modules)
📱 Mobile Friendly (Learn anywhere)
IoT Devs
Start Learning
Secure Enrollment via SSL

Complete Course Syllabus

  • 1
    ESP32 Architecture
    Dual cores, WiFi/BT radio, and pinout explained.
  • 2
    WiFi & Web Server
    Serving HTML pages to control pins remotely.
  • 3
    Bluetooth LE
    Advertising services and connecting to phones.
  • 4
    Cloud Connection
    Sending sensor data to AWS/Firebase via MQTT.
  • 5
    Power & Sleep
    Optimizing code to run on batteries.

Estimated completion time: 21 lessons • Self-paced learning • Lifetime access

Career Outlook

Estimated Salary
$100k - $140k

Career Paths

IoT Firmware Eng $110k-$150k
Connected Device Dev $100k-$140k
Embedded Engineer $105k-$145k

What You Will Learn

Connect hardware to the internet using WiFi
Create a web server hosted directly on the ESP32
Communicate with smartphones using Bluetooth Low Energy (BLE)
Implement Deep Sleep for years of battery life
Perform Over-the-Air (OTA) firmware updates

Skills You Will Gain

ESP32 WiFi Networking Bluetooth LE HTTP/MQTT Power Management

Who Is This For

IoT Developers
Makers
Firmware Engs

Prerequisites

Arduino Basics
C++

ESP32 WiFi/Bluetooth FAQs

Vs Arduino?

ESP32 is much faster with built-in radio.

Language?

C++ (Arduino framework) or MicroPython.

Secure?

We cover SSL/TLS for secure connections.

OTA?

Yes, updating code wirelessly is covered.

Need more info?
All Reork courses are 100% free, self-paced, and fully accessible on mobile devices. No prior experience is required. Read our full Platform FAQ.

Tech Stack & Tools

PlatformIO
VS Code
Postman
ESP32 DevKit

Recommended Next Steps

Edge AI (TinyML)

hardware Advanced

Run AI on microcontrollers. Train and deploy TensorFlow Lite models to Arduino and ESP32 for voice, gesture, and vision recognition.

3D Printing & CAD

hardware Beginner

Turn ideas into physical objects. Master Fusion 360 for modeling and Slicer settings for high-quality FDM and Resin 3D printing.

LoRaWAN Networking

hardware Intermediate

Build long-range, low-power networks. Master LoRa radio modulation, Gateways, and The Things Network for city-wide IoT.

Your Learning Path

Master This Topic, Step by Step

Go from your first step to master level. Three simple steps, all about ESP32 WiFi/Bluetooth.

Currently studying: ESP32 WiFi/Bluetooth
Step 1 · Start Here

ESP32 WiFi/Bluetooth Basics

Get the basics of ESP32 WiFi/Bluetooth right, and everything after gets easier.

5 min Free to explore
ESP32 WiFi/Bluetooth for Beginners
Begin here — no experience needed
Step 2 · Next Level

Advanced ESP32 WiFi/Bluetooth

Take your ESP32 WiFi/Bluetooth skills from good to great with the advanced level.

5 min Free to explore
Advanced ESP32 WiFi/Bluetooth Course
Ready for more? Take the next step
Step 3 · The Shortcut

Master ESP32 WiFi/Bluetooth with AI

Top learners use Claude + Artifacts to build interactive demos while you chat. Reach master level in less time.

5 min Free to explore
AI Interactive Learning
Take the shortcut — let AI do the heavy lifting
Start with Step 1. Each step builds on the one before it.
Start Learning