diff --git a/Core/Src/yunhorn_sts_presence_rss.c b/Core/Src/yunhorn_sts_presence_rss.c
index 5848c5b..f323275 100644
--- a/Core/Src/yunhorn_sts_presence_rss.c
+++ b/Core/Src/yunhorn_sts_presence_rss.c
@@ -349,7 +349,7 @@ int sts_presence_rss_fall_rise_detection(void)
 			acc_rss_deactivate();
 			return EXIT_FAILURE;
 	}
-
+//  BEFORE MERGE  FIRST AND SECOND HALF FALL RISE DETECTION
 // ********  First Half detection of fall down and rise up
 	if (!acc_detector_presence_activate(handle))
 	{