Differences

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--- nxt_gps [2016/07/25 20:29] – [Sample program with the dGPS API] alvaropintado
+++ nxt_gps [2016/07/26 13:40] (current) – [dGPS for LEGO NXT] alvaropintado
@@ Line 15: / Line 15: @@
 ==== dGPS for LEGO NXT ====
-The Dexter Industries GPS is a GPS unit manufactured for use with the LEGO® MINDSTORMS® NXT. The sensor calculates positional and navigational data. It then delivers latitude, longitude, time, velocity, angle of travel, and navigational information such as distance and angle to a specified destination. IT
+The Dexter Industries GPS is a GPS unit manufactured for use with the LEGO® MINDSTORMS® NXT. The sensor calculates positional and navigational data. It then delivers latitude, longitude, time, velocity, angle of travel, and navigational information such as distance and angle to a specified destination. The dGPS can be accurate up to 3 meters as most civilian GPS sensors are. Below is a diagram for the dGPS sensor and a table of percent difference calculations to a modern smartphone.
 {{:alvarop:dgps.png?750|}}
+{{:alvarop:gps_percent_difference.png?1000|}}
 ==== Installing the dGPS Sensor on Your LEGO NXT Robot ====
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   - Run the program on your NXT
-The dGPS sensor takes a couple minutes to make a GPS connection, even up to 10 minutes on it's first use.
+The dGPS sensor takes a couple minutes to find a satellite signal, even up to 10 minutes on it's first use.
-After the dGPS sensor makes a connection, the on-board LED will shine blue and you should have a screen on your NXT that look similar to this:
+Before a signal is acquired, the GPS will begin sending the default location and time (121000000 E, 24000000 W) until a valid signal is locked by the sensor.
+After the dGPS sensor finds a satellite signal, the on-board LED will shine blue and you should have a screen on your NXT that look similar to this:
 {{:alvarop:img_20160725_200142.jpg?500|}}
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-For questions, clarifications, etc, Email: pintado@unlv.edu
+For questions, clarifications, etc, Email: pintado@unlv.nevada.edu