Adding extensions to your micro:bit project is a simple process that significantly expands its capabilities, allowing you to interface with new hardware and unlock advanced functionalities.
How Do I Add an Extension to Micro:bit?
Adding an extension to your micro:bit project within the MakeCode editor is straightforward and greatly enhances what your micro:bit can do, from controlling RGB LED strips to integrating advanced sensors.
Understanding Micro:bit Extensions
Extensions are pre-written packages of code blocks that add new functionalities to the MakeCode editor's Toolbox. They act like plug-ins, providing easy-to-use blocks for specific hardware modules (like servos, OLED displays, or NeoPixel LEDs) or advanced programming concepts that aren't included in the default MakeCode set. Using extensions simplifies complex tasks, making it accessible to integrate sophisticated features into your projects without writing extensive custom code.
Step-by-Step Guide to Adding Extensions
To add an extension, you'll primarily use the official MakeCode for micro:bit editor.
- Open Your Project: Navigate to the MakeCode for micro:bit editor. You can either start a new project or open an existing one.
- Access the Extensions Menu: On the left side of the editor, within the "Toolbox" area, scroll down and click on the "Extensions" button. This button is often represented by a puzzle piece icon or found within an "Advanced" category.
- Search for Extensions: This will open a window giving you a place to search for extensions. You can browse popular extensions or use the search bar to find specific ones by typing keywords (e.g., "NeoPixel," "servo," "OLED," "robotics").
- Select and Add: Once you find the desired extension, click on it. The editor will then add this extension to your project.
- Verify Integration: When you select an extension, you should see the new extension category appear in the Toolbox of your project. This new category will contain all the specific code blocks provided by that extension, ready for you to drag and drop into your program.
Popular Micro:bit Extensions and Their Uses
Extensions allow your micro:bit to interact with a vast ecosystem of electronic components. Here are a few popular examples:
| Extension Type | Common Use Cases | Example Blocks (Illustrative) |
|---|---|---|
| LED Strips (e.g., NeoPixel) | Controlling addressable RGB LEDs for colorful lights, animations, or indicators. | strip.setPixelColor, strip.show |
| Servos | Robotics, controlling mechanical movement, animatronics, automated gates. | servo write pin, set angle |
| OLED Displays | Showing custom text, numbers, sensor readings, or simple graphics on small screens. | display.showString, display.drawPixel |
| Environmental Sensors | Reading temperature, humidity, pressure, or air quality data. | dht11.readTemperature, bme280.getPressure |
| Robotics (e.g., Kitronik) | Interfacing with specific robot chassis, motors, and line-following sensors. | motors.forward, lineFollower.read |
These extensions dramatically expand the types of projects you can create, moving beyond the micro:bit's built-in sensors and outputs.
Tips for Using Extensions Effectively
- Check Compatibility: Always ensure the extension is compatible with your micro:bit version and the specific hardware you are using.
- Review Documentation: Many reputable extensions come with online documentation, examples, or tutorials. Checking these resources can save time and help you understand how to use the blocks correctly.
- Start Simple: When using a new extension, begin with its most basic functions to understand how it works before integrating it into a complex project.
- Manage Resources: While powerful, each extension adds code to your project. Too many extensions can sometimes lead to larger file sizes or increased memory usage, especially for complex projects.
- Explore and Experiment: The best way to learn is by trying out different extensions and seeing what new possibilities they unlock for your projects.
