Add comments to examples

Author: nseidle

examples/Example11_UsbNMEA/Example11_UsbNMEA.ino

@@ -5,8 +5,8 @@
   Date: October 2nd, 2023
   License: MIT. Please see LICENSE.md for more information.
 
-  This sketch turns on all the major NMEA setences at 2Hz and prints the
-  incoming serial out the Serial port. This is useful for viewing the GNSS
+  This sketch turns on all the major NMEA sentences at 2Hz and prints the
+  messages over the USB C port (COM1 on the UM980). This is useful for viewing the GNSS
   data in a program like u-center.
   These examples are targeted for an ESP32 platform but any platform that has multiple
   serial UARTs should be compatible.
@@ -16,9 +16,13 @@
   SparkFun Triband GNSS RTK Breakout - UM980 (GPS-23286) https://www.sparkfun.com/products/23286
 
   Hardware Connections:
+  Connect a USB C cable to the UM980 breakout board
   Connect RX2 of the UM980 to pin 4 on the ESP32
   Connect TX2 of the UM980 to pin 13 on the ESP32
   To make this easier, a 4-pin locking JST cable can be purchased here: https://www.sparkfun.com/products/17240
+  Open a terminal on the CH340 COM port at 115200bps
+  NMEA will be displayed at 2Hz
+
   Note: Almost any ESP32 pins can be used for serial.
   Connect a dual or triband GNSS antenna: https://www.sparkfun.com/products/21801
 */

examples/Example16_PollForValidRTCMMessages/Example16_PollForValidRTCMMessages.ino

@@ -8,6 +8,7 @@
   The documentation for the UM980 does not explicitly state which RTCM messages are supported
   but by sending the enable command to the module we can insinuate which are supported.
   This sketch sends the 'RTCMxxxx' command and looks for an OK.
+  The messages that successfully receive an OK will be reported at the completion of the sketch.
   These examples are targeted for an ESP32 platform but any platform that has multiple
   serial UARTs should be compatible.
 
@@ -48,7 +49,7 @@ void setup()
   //We must start the serial port before using it in the library
   SerialGNSS.begin(115200, SERIAL_8N1, pin_UART1_RX, pin_UART1_TX);
 
-  myGNSS.enableDebugging(); // Print all debug to Serial
+  // myGNSS.enableDebugging(); // Print all debug to Serial
 
   if (myGNSS.begin(SerialGNSS) == false) //Give the serial port over to the library
   {