USGlobalsat ER-411 - Manual (Page 5)

ER-411
Specifications are subject to be changed without notice.
Page 5 of 13
Version 1.3.1
„ Pin Assignment
„ Pin Explanation
VIN (DC power input): This is the main DC supply for a 4.5V ~6.5 DC input power.
TX: This is the main transmits channel for outputting navigation and measurement data to user’s
navigation software or user written software.
RX: This is the main receive channel for receiving software commands to the engine board from
SiRFdemo software or from user written software.
GND: GND provides the ground for the engine board. Connect all grounds.
3. Software Commands
„ NMEA Output Command
GGA-Global Positioning System Fixed Data
Table B-2 contains the values for the following example:
$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M,,,,0000*18
Table B-2 GGA Data Format
Name Example Units Description
Message ID $GPGGA GGA protocol header
UTC Time 161229.487 hhmmss.sss
Latitude 3723.2475 ddmm.mmmm
N/S Indicator N N=north or S=south
Longitude 12158.3416 dddmm.mmmm
E/W Indicator W E=east or W=west
Position Fix Indicator 1 See Table B-3
Satellites Used 07 Range 0 to 12
HDOP 1.0 Horizontal Dilution of Precision