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Hardware Setup

Course Content
Session 1: Introduction to ESP32
Objective: Get familiar with the ESP32 microcontroller and set up the development environment.
0/5
What is the ESP32?
Quick quiz to test your knowledge on the ESP32 features.
Setting Up the Development Environment
Writing Your First Program
Conclusion
Session 2: Interfacing with Sensors and Displays
Learn how to connect a DHT22 sensor and an OLED display to the ESP32.
0/4
Introduction to OLED Displays and I2C
Hardware Setup
Setting Up the Development Environment
Writing and Uploading the Code
Session 3: Programming the DHT22 Sensor
0/4
What is a DHT22 sensor?
Wiring a DHT22 (3 Pin)
Wiring a DHT22 (4 Pin)
DHT22 Code
Session 4: Programming the OLED Display
Objective: Write code to display information on the OLED display.
0/4
Types of OLEDs
Wiring an OLED I2C
OLED Code
Finding the I2C Scanner Address
Session 5: Integrating Sensor Data with OLED Display
Objective: Combine sensor readings with OLED display functionality.
0/1
Displaying Data to the OLED
Session 6: Setup WIFI Capability
0/1
Adding WiFi
Session 7: Adding a Webserver
0/1
Adding a Web Interface
Session 8: Wrap-up
0/1
A Review of Everything
ESP32 Basics
About Lesson

A. Components Needed

  • ESP32 development board
  • OLED I2C display (e.g., 128×64 SSD1306)
  • Jumper wires
  • Breadboard (optional)

B. Connecting the Hardware

  • OLED Display Pins:
    • VCC: Power supply (3.3V or 5V)
    • GND: Ground
    • SDA: Data line (I2C)
    • SCL: Clock line (I2C)
  • ESP32 Connections:
    • Connect VCC to 3.3V on the ESP32.
    • Connect GND to GND on the ESP32.
    • Connect SDA to GPIO21 (default SDA pin for ESP32).
    • Connect SCL to GPIO22 (default SCL pin for ESP32).

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