The 1st course in the 5-course series, this module covers the fundamental concepts needed to start DIY home automation projects. Learn about the ESP32, set up the Arduino IDE, and take your first steps with the ESP32. You'll work with temperature sensors, optocouplers, relays, and power calculations. Additionally, you'll explore power supplies, troubleshooting techniques, and setting up MQTT servers and brokers. By the end of this course, you'll have a solid foundation to begin your home automation journey.