diff --git a/README.md b/README.md
index 82cde25..59f7c07 100644
--- a/README.md
+++ b/README.md
@@ -74,9 +74,9 @@ clean rec
 
 port function
 
-- [*] open port
-- [*] close port
-- [*] send ascii to port
+- [x] open port
+- [x] close port
+- [x] send ascii to port
 - [ ] send hex to port
 - [ ] save output to port
 - [ ] view recived data as hex