serial test code for custom boards

Dependencies:   MODSERIAL mbed

Revision:
0:070feac238b3
diff -r 000000000000 -r 070feac238b3 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Aug 10 17:01:54 2018 +0000
@@ -0,0 +1,10 @@
+#include "mbed.h"              
+ 
+Serial pc(USBTX, USBRX);
+ 
+int main() {
+    pc.printf("Echoes back to the screen anything you type\n");
+    while(1) {
+        pc.putc(pc.getc());
+    }
+}
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