🚪 Building a Sensor-Controlled Garage Door Opener | Part 2: UML Design, Statechart, Code & Demo

Welcome to **Part 2** of our **Sensor-Controlled Garage Door Opener** project using the **Raspberry Pi Pico**! In this video, we take the **state model** we designed in [Part 1](https://youtu.be/YourLinkHere) and turn it into a **fully functional prototype**.

We’ll go step by step through the **UML class diagram**, the **statechart**, and the **MicroPython implementation** to build a **real-world automation system** using **object-oriented design principles**. By the end of this video, you'll have a working garage door opener that can respond to **sensor inputs**, **button presses**, and **safety triggers**.

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### 🔑 **What You’ll Learn in This Video:**
✅ **Review of the State Model** – How our states interact and transition
✅ **UML Class Diagram Design** – Structuring objects and their relationships
✅ **Statechart Implementation** – Using the UML model to drive real-time behavior
✅ **Writing the Code** – Implementing the garage door logic using **MicroPython**
✅ **Using PicoLibrary Classes** – Simplifying embedded system development
✅ **Demo of the Working Prototype** – Real-time response to sensor inputs

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### 📖 **Watch These Videos for More Context:**
📌 **Part 1: Designing the State Model for a Garage Door Opener** 👉 [Watch Here](https://youtu.be/9Budc8rGkPs)
📌 **State Machines & UML Statecharts Explained** 👉 [Watch Here](https://youtu.be/EFN5c6QlgNs)
📌 **PicoLibrary GitHub Repository** – Pre-built Classes for Embedded Systems 👉 [Check it Out](https://github.com/jitsengupta/PicoLibrary)

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### 🛠️ **What You’ll Need for This Project:**
- **Raspberry Pi Pico**
- **Motor Driver & Actuators** (We use a servo for the demo)
- **Limit Switches & Sensors** (For detecting obstacles & door position - we use IR and USS sensors in the demo)
- **PicoLibrary Classes** (Pre-built hardware abstraction classes)
- **MicroPython & Thonny IDE** (For coding & testing)

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### 📌 **Who Should Watch This Video?**
🔹 **Embedded Systems Developers** learning **state-based design**
🔹 **Raspberry Pi Pico Enthusiasts** building **home automation projects**
🔹 **Software Engineers & Students** interested in **UML modeling**
🔹 **Hobbyists** looking to integrate **sensors & actuators** in their projects

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### 🔔 **Subscribe for More Raspberry Pi & OOP Projects!**
If you love **Object-Oriented Design**, **MicroPython**, and **State Models**, don’t forget to:
👍 **Like this video** if you found it helpful
💬 **Comment below** with your thoughts & questions
📢 **Share this with fellow developers & makers**
✅ **Subscribe** for more **Raspberry Pi, UML, and Embedded Systems tutorials!**

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**📌 Keywords & Tags for SEO Optimization:**
#RaspberryPiPico #GarageDoorOpener #ObjectOrientedProgramming #StateMachines #EmbeddedSystems #MicroPython #UMLDesign #StateModels #Automation #IoT #PicoLibrary #HomeAutomation #SmartHome

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