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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
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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

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