2019-09-27 15:53:26 +02:00
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# Bluetooth
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This page describes the procedure to download MakeCode program to the EV3 brick
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over Bluetooth.
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## ~ hint
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### WARNING: EXPERIMENTAL FEATURES AHEAD!
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Support for Bluetooth download relies on [Web Serial](https://wicg.github.io/serial/),
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an experimental browser feature. Web Serial is a work [in progress](https://www.chromestatus.com/feature/6577673212002304);
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it may change or be removed in future versions without notice.
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By enabling these experimental browser features, you could lose browser data or compromise your device security
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or privacy.
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## ~
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2019-09-27 20:43:04 +02:00
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https://youtu.be/VIq8-6Egtqs
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2019-09-27 15:53:26 +02:00
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## Supported browsers
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* Chrome desktop, version 77 and higher, Windows 10
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* [Edge Insider desktop](https://www.microsoftedgeinsider.com), version 77 and higher, Windows 10
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To make sure your browser is up to date, go to the '...' menu, click "Help" then "About".
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2019-09-27 17:46:50 +02:00
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Next you need to enable the experimental features (this may change in the future)
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* go to **chrome://flags/#enable-experimental-web-platform-features** and **enable**
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**Experimental Web Platform features**
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2019-09-27 15:56:03 +02:00
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2019-09-27 18:36:25 +02:00
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2019-09-27 15:53:26 +02:00
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## Machine Setup
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* pair your EV3 brick with your computer over Bluetooth. This is the usual pairing procedure.
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## Download over Bluetooth
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* go to the **beta** editor https://makecode.mindstorms.com/beta
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2019-09-27 17:46:50 +02:00
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This feature is not yet released so make sure to use the beta editor.
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2019-09-27 15:53:26 +02:00
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* click on **Download** to start a file download as usual
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* on the download dialog, you should see a **Bluetooth** button. Click on the
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**Bluetooth** button to enable the mode.
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* **make sure the EV3 brick is not running a program**
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* click on **Download** again to download over bluetooth.
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## Choosing the correct serial port
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2019-09-27 17:46:50 +02:00
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Unfortunately, the browser dialog does not make it easy to select which serial port is the brick.
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2019-09-27 15:53:26 +02:00
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On Windows, it typically reads "Standard Serial over Bluetooth" and you may
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have multiple of those if you've paired different bricks.
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2019-09-27 17:46:50 +02:00
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## Known issues
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* We do not detect properly that the program is running on the brick. Make sure to stop the program before starting the download procedure.
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2019-09-27 18:25:46 +02:00
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* The list of programs on the brick screen is not updated when uploading via bluetooth.
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2019-09-27 17:46:50 +02:00
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2019-09-27 15:53:26 +02:00
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## Feedback
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Please send us your feedback through https://forum.makecode.com.
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