Mbed USBSerial "Hello world" example. Just Open a terminal window and see the result. Note that no baudrate setting is necessary.

Dependencies:   mbed USBDevice

Revision:
0:7d5e1b4145a3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice.lib	Thu Jun 16 12:17:17 2022 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/USBDevice/#53949e6131f6