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Introduction to OLED Displays and I2C

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.
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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. What is an OLED Display?

  • OLED stands for Organic Light Emitting Diode.
  • Advantages: High contrast, wide viewing angles, and low power consumption.
  • Common sizes: 128×64 pixels or 128×32 pixels.

B. Understanding I2C Communication

  • I2C (Inter-Integrated Circuit) is a communication protocol used to connect multiple devices over a two-wire interface (SDA and SCL).
  • Key terms: Master (ESP32) and Slave (OLED display).

C. OLED Display Overview

  • Typical OLED displays used with ESP32 are 128×64 pixels and use the SSD1306 or SH1106 driver.
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