diff --git a/examples/ws2812bdemo/ws2812bdemo.c b/examples/ws2812bdemo/ws2812bdemo.c
index 517dca241884adee0ae2aa9430a0b739da911f5a..2f462d0f1cbddba7e7a399299c752c58d45c98f8 100644
--- a/examples/ws2812bdemo/ws2812bdemo.c
+++ b/examples/ws2812bdemo/ws2812bdemo.c
@@ -2,6 +2,8 @@
 #define SYSTEM_CORE_CLOCK 48000000
 #define APB_CLOCK SYSTEM_CORE_CLOCK
 
+// NOTE: CONNECT WS2812's to PC6
+
 #include "ch32v003fun.h"
 #include <stdio.h>
 #include <string.h>