Press A (sad), B (happy) or both (meh) until the "smiley face" becomes bright enough and flashes.

Nothing to do, just watch "rain pour down the screen".

Find the morse code for the displayed letter: use the A button for short (less than 250ms) or long (more than 250ms) presses. Once you're done, press the B button to submit your answer.

The proper answer is then scrolled accross the screen.

Display the temperature measured by the micro:bit. Display it by "zigzagging" the display instead of scrolling it from left to right.

Display the time elapsed as HH:MM:SS. Display it by "zigzagging" the display instead of scrolling it from left to right.

Find the random heading by rotating the micro:bit. The closer you are from the answer, the brighter the screen will be.

Shake the micro:bit and see how high you can reach! Press the A button to start a countdown, when the screen lights up, you have 2 seconds to shake the micro:bit. It'll then tell you how hard it was shaken.

Read messages sent from the computer connected via USB (serial).

Messages sent to the micro:bit using the pyserial python library on the computer will be displayed.

An easy way to connect to the micro:bit serial port on the computer is to start a REPL (using python), then:

>>> import microfs
>>> s = microfs.get_serial()
>>> s.write("Hello world")

The python code in this repository can be compiled to a .hex file using the mu editor or the python microbit online editor.

Connecting your BBC micro:bit to your computer using a USB cable will make it appear as a USB mass storage (just as a standard USB key).

Once you have the .hex file, copy it to the "folder", the led at the back of the board will blink rapidly while it's flashing it. Once it's done flashing, everything is ready to enjoy ;)

Say you have created a python virtualenv and installed the requirements using:

pip install -r requirements.txt

You can now flash your python script from the command line:

uflash <your_script_name>.py

It will (try to) autodetect your micro:bit. If it can't, then specify the path to its volume (eg /Volumes/MICROBIT/<some_file_name>.hex):

uflash <your_script_name>.py /Volumes/MICROBIT/<some_file_name>.hex

This is a very useful trick: mainly main.py.

This allows the use of "proper python modules" by uploading a main.py file on the micro:bit filesystem, which will be run on each reset. The prerequisite is to have an "empty micropython runtime" flashed on the device:

uflash

Not providing a script will flash the "empty micropython runtime", which will allow for the use of the main.py file you put on the filesystem:

ufs put main.py

Using ufs ls should list the existing files on the filesystem (be careful, those will all be erased whenever you re-flash your device using uflash!).

From now on, and until the next re-flash, whatever is in the main.py will be automatically run on each device reset.

Changing the main.py file is MUCH faster than re-flashing the device, and allows for a much tighter feedback loop (and we all love that).

You can now add the files you want to be run using ufs put, and the main.py loader will allow you to choose which one you want to run:

• press the A (left) button to cycle through the different modules
• press the B (right) button to run the current module