2. Micropython editor

The standard online micropython editor is at: https://python.microbit.org/v/3.

2.1. Saving python files

../_images/save_python_file.png
Type in some code.
Click on the three vertical dots of the Save button to save as a python file.

2.2. Opening python files

Click on the Open button to navigate to a saved python file.

2.3. Uploading modules to the microbit

../_images/online_editor.png
Create a project.
The main.py file is where you place any code to flash to the microbit.
A blank module file, such as MOVEMotor.py can be created using the Create file button. Code can be typed in or pasted in to that file.
Alternatively, a previously created module file can be added using Open.
In doing so a dialog will ask whether to replace the main file with that file. Click on the right hand icon instead, and choose Add file … Then click Confirm.
../_images/online_editor_open_file.png

2.4. Saving hex files

Using hex files has the advantage that saving and opening files with modules is done automatically.
This is the recommended approach for projects with a main file and a module so that both are saved and opened with one hex file.
../_images/save_hex_file.png
Type in some code.
Click on the Save button to save as a hex file.