28146 Parallax Inc, 28146 Datasheet - Page 7

• Manufacturer Part Number: 28146
• Description: MODULE RECEIVER PARALLAX GPS
• Manufacturer: Parallax Inc

Specifications of 28146

• Frequency: 1.575GHz
• Sensitivity: -139dBm
• Modulation Or Protocol: GPS
• Applications: GPS
• Current - Receiving: 115mA
• Data Interface: PCB, Through Hole
• Antenna Connector: On-Board, Chip
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

There are three standard notations for displaying longitude and latitude data:
In “Smart Mode,” the Parallax GPS Receiver Module transmits latitude and longitude data to the user
in GPS Coordinate format (degrees, minutes, and fractional minutes, see the “Communication
Protocol” section for more details). Conversion to the two other notations, DDMMSS (degrees,
minutes, second) and Decimal Degrees, is trivial and demonstrated in the example code below.
To graphically display your GPS position using Google Maps (in map, satellite, or hybrid view), simply
go to http://maps.google.com/ and enter in your decimal coordinates in the "Search" field (for example,
"36.5986, -118.0599" without the quotes).
To graphically display a track or series of waypoints, GPS Visualizer (http://www.gpsvisualizer.com/) is
a free, easy-to-use online utility that creates maps and profiles from GPS data. GPS Visualizer can
read data files from many different sources, including raw NMEA strings (such as those captured
directly from the Parallax GPS Receiver Module in “Raw Mode”) or tab-delimited or comma-separated
text of relevant GPS data.
Some additional resources and articles on GPS can be found here:
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Example Code (BASIC Stamp 2)
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' -----[ Program Description ]---------------------------------------------
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' This program demonstrates the capabilities of the Parallax GPS Receiver
' Module.
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' Before running this demo, ensure that the /RAW pin is left unconnected
' or pulled HIGH to enable "smart" mode, in which the GPS Receiver Module
' will accept commands and return the requested GPS data.
'
' For an application that requires constant monitoring of multiple GPS
' data components, it is recommended to use the "raw" mode of the GPS
' Receiver Module by pulling the /RAW Pin LOW. In this mode, the module
' will transmit a constant stream of raw NMEA0183 data strings, which can
File...... GPSDemoV1.1.BS2
Purpose... Demonstrates features of the Parallax GPS Receiver Module
Author.... (c) Grand Idea Studio, Inc. [www.grandideastudio.com]
E-mail.... [e-mail]
Updated... 04 Oct 2006 (by Parallax Tech Support)
{$STAMP BS2}
{$PBASIC 2.5}
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Where in the World is my BASIC Stamp?, Jon Williams, The Nuts and Volts of BASIC Stamps
(Volume 3), http://www.parallax.com/dl/docs/cols/nv/vol3/col/nv83.pdf
Stamping on Down the Road, Jon Williams, The Nuts and Volts of BASIC Stamps (Volume 4),
http://www.parallax.com/dl/docs/cols/nv/vol4/col/nv103.pdf
GPS Coordinates (degrees, minutes, and fractional minutes), ex: 36 degrees, 35.9159
minutes
DDMMSS (degrees, minutes, seconds), ex: 36 degrees, 35 minutes, 55.3 seconds
Decimal Degrees, ex: 36.5986 degrees
Parallax GPS Receiver Module * Revision 1.1
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