No need to wait after Wire.requestFrom().

[Koepel]

You may remove the while (Wire.available() < 14); after the Wire.requestFrom().
Explanation: Common-mistakes#1

[lobodol]

Oh thanks a lot for your contribution. I'll fix it soon according to your doc.

[lobodol]

I opened a new pull request : #2
What do you think is the best way to handle Wire error ?

[Koepel]

To check or not to check for errors ? then my advice is at the bottom of the page: Check for bus errors ?

It is possible to keep the last error in a variable. That can be used if something goes wrong.

It is also possible to increment an error count. That error count can be checked every few hours and if it was increased then the quality of the I2C bus has a problem. This is very useful for diagnostics. It could be displayed on a special diagnostics or service page.

It is possible to do a few retries when the I2C went wrong.

In my opinion this all could be useful, but not with the Arduino Wire library. The Arduino Wire library does not handle I2C bus problems very well itself.