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authorYin Shanyang <yang@swarm.is>2016-10-24 15:36:24 +0800
committerYin Shanyang <yang@swarm.is>2016-10-24 15:36:24 +0800
commit7550abbb7ff542dccd983c02254c9cbde2e2a3e2 (patch)
tree3f5e2efdefbd0f52f69bed212c26b80ad2a21747 /keyboards/lets_split/readme.md
parent2e2b9962cdc20e9f46dd0194f25a68ffa05e7d36 (diff)
added notes on using Arduino Pro Micro 3.3V with Let’s Split
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diff --git a/keyboards/lets_split/readme.md b/keyboards/lets_split/readme.md
index 73fdb0f789..6e296737a2 100644
--- a/keyboards/lets_split/readme.md
+++ b/keyboards/lets_split/readme.md
@@ -100,3 +100,16 @@ half to a computer by USB the keyboard will use QWERTY and Colemak when the
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.
+```