diff --git a/Code/picocalc_helloworld/README.md b/Code/picocalc_helloworld/README.md
index da4a6a1..7c22144 100644
--- a/Code/picocalc_helloworld/README.md
+++ b/Code/picocalc_helloworld/README.md
@@ -11,4 +11,6 @@ cmake ..
 make  
 ```
 
+## Notes
 
+ On PicoCalc, the default serial port of the Pico is the USB Type-C port, not its built-in Micro USB port.