added notes on using Arduino Pro Micro 3.3V with Let’s Split

This commit is contained in:
Yin Shanyang 2016-10-24 15:36:24 +08:00
parent 2e2b9962cd
commit 7550abbb7f

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@ -100,3 +100,16 @@ half to a computer by USB the keyboard will use QWERTY and Colemak when the
right half is connected. right half is connected.
Notes on Using Pro Micro 3.3V
-----------------------------
Do update the `F_CPU` parameter in `rules.mk` to `8000000` which reflects
the frequency on the 3.3V board.
Also, if the slave board is producing weird characters in certain columns,
update the following line in `matrix.c` to the following:
```
// _delay_us(30); // without this wait read unstable value.
_delay_us(300); // without this wait read unstable value.
```