Kitronik LINE FOLLOWING BUGGY V3 Manual page 10

TEST CODE
1
Download the code here: kitronik.co.uk/5638
Now, let's try the code out! Plug your BBC micro:bit into a USB port and
it will show up as a storage device. Simply unzip, then drag and drop
the .hex file you just downloaded onto the BBC micro:bit. The file might
not show up on the BBC micro:bit in the file explorer but it is there!
Once the file has been transferred (the light on the BBC micro:bit will
stop blinking rapidly) remove the BBC micro:bit from your computer.