Bluetooth Download feature

Description

Download code wirelessly via Web Bluetooth. Supported for micro:bit currently.

How to enable it?

• Open a browser that supports Web Bluetooth. See https://caniuse.com/#feat=web-bluetooth. On Windows, you'll need Chrome 70+.
• Go to the gearwheel menu and click on Pair Bluetooth
• Select your device and pair
• Press Download to start remote flashing.

If you cannot see that button and you editor supports this experiment, go to About, then click Experiments and Bluetooth Download. If you cannot see this card, your editor does not support yet this feature.

Known issues

Needs initial drag & drop

This feature only supports partial flashing now. This means that you need to first drag and drop a .hex file using the USB cable; then you'll be able to update that same scripts using Bluetooth.

Pairing issues in windows

Use the "No Pairing" setting in the Project Settings for Windows.

My micro:bit is stuck in pairing mode

Partial flashing failed to finish.

• Drag and drop a .hex file via USB

My micro:bit won't start after failed partial flashing?

• Reinstall the firmware

Feedback

Do you use this feature? Is there something you'd like to change? Did you encounter issues? Please drop a comment on this issue to send us your feedback.

The issue describes Bluetooth Download for micro:bit and lists pairing and partial-flashing behavior, but names no source file, test, or specific change. Start by locating the Bluetooth Download entry point and its existing tests, then define the requested behavior and completion criteria before making changes.