Update to match new RPi scanner example.

examples/scanner/scanner.ino

@@ -62,6 +62,8 @@ void setup(void)
   radio.startListening();
   radio.stopListening();
 
+  radio.printDetails();
+
   // Print out header, high then low digit
   int i = 0;
   while ( i < num_channels )
@@ -102,14 +104,13 @@ void loop(void)
 
       // Listen for a little
       radio.startListening();
-      delayMicroseconds(225);
-      
+      delayMicroseconds(128);
+      radio.stopListening();
 
       // Did we get a carrier?
       if ( radio.testCarrier() ){
         ++values[i];
       }
-      radio.stopListening();
     }
   }