diff --git a/readme.MD b/readme.MD
index e5929e1..705ff73 100644
--- a/readme.MD
+++ b/readme.MD
@@ -4,3 +4,4 @@ change log
 
 2024-06-19   Initial of Weight Scale
 2024-06-24   add timer upload of weight scale
+2024-06-28   before try low power