diff --git a/PID_v1/keywords.txt b/PID_v1/keywords.txt
index 6b78e51..3cb776b 100644
--- a/PID_v1/keywords.txt
+++ b/PID_v1/keywords.txt
@@ -32,4 +32,6 @@ GetDirection	KEYWORD2
 AUTOMATIC	LITERAL1
 MANUAL	LITERAL1
 DIRECT	LITERAL1
-REVERSE	LITERAL1
\ No newline at end of file
+REVERSE	LITERAL1
+MILLIS	LITERAL1
+MICROS	LITERAL1
\ No newline at end of file