WebUSB

Direct flashing saves time and makes it simpler to update the code on your micro:bit each time you update the code in your editor.

It uses a process called WebUSB, which makes a connection between the browser or app and the micro:bit via the USB cable.

What you need

• A Windows 8+, Mac, Chromebook or Linux computer.
• A Chrome-based browser like the new Microsoft Edge or Google Chrome version 65 or above.
• micro:bit firmware 0243 or above - see our firmware guide if you're not sure what firmware your micro:bit has and learn how to update it if necessary.

MakeCode

1. Select the more options (three dots) menu next to the Download button and then choose Pair Device.
2. A browser pop-up will let you select your BBC micro:bit and then click Connect. You will see the USB symbol flashing on the Download button to indicate a successful connection.
3. Select Download to instantly flash your program to the micro:bit. The first time you do this it may take a bit longer, but subsequent flashes will be faster.

Don’t see a device listed? Check our WebUSB troubleshooting guide for help.

Python

1. From the Python editor menu choose Connect. You will see a pop-up in the browser that lists any micro:bits you have connected with a USB cable.
2. Select the device named BBC micro:bit CMSIS-DAP and then Connect. You will see the menu update to show you a connection has been made. Flash and Disconnect appear as buttons in the menu
3. Try flashing your program, you should find that it is now flashed directly to the micro:bit each time you press Flash. The first time you do this it may take a bit longer, but subsequent flashes will be faster.

Don’t see a device listed? Check our WebUSB troubleshooting guide for help.