Need help to understand the instruction given in the chapter on Calibration

[nsengupta]

I am a newbie in the Rust Embedded world and I am taking first steps using BBC Microbit V2.

From the fantastic book https://docs.rust-embedded.org, chapter 09, on LED Compass:

If you do not want to play the game every time you restart your application during development feel free to modify the src/main.rs template to just use the same static calibration once you got the first one.

Somehow, my old brain is failing to understand the same static calibration once you got the first one part.

Could someone please push me in the intended direction here?

[eldruin]

It means that once you have done the calibration once, you can copy the values and just create a constant calibration variable with them instead of calling let calibration = calc_calibration(...)

[nsengupta]

Ah, OK! I was overthinking obviously: how to do it programmatically?

Source change is much easier because the hardware is the same and therefore, calibration needs no repetition.

Thank you!