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software resources for science and technology education
What does the HEX file do after flashing?
The HEX file not only contains a compact form of your program script but also the ‘runtime’ code to make your program work.
How do I make sure that the micro:bit contains the latest ‘runtime’ software?
Download the code and send the .HEX file to your micro:bit.
What happens to pairing if I flash using a USB cable?
It is possible that the use of USB to flash a file causes the micro:bit to forget pairing, in which case follow the instructions for making your iPad or iPhone to forget the micro:bit also.
Then start pairing again.
What does ‘Flash’ mean?
‘Flashing’ is when you send a .HEX code file to the micro:bit. The code gets stored in flash memory in one of the chips on the micro:bit, overwriting the previous code. This app uses Bluetooth wireless to send the file. From a computer, a file is usually flashed by connecting a USB cable to the micro:bit.