BN-880 GNSS Module + Compass Datasheet

Introduction

The Beitian BN-880 is a compact and versatile GNSS (Global Navigation Satellite System) module integrated with an electronic compass. It is designed for applications requiring accurate positioning, navigation, and heading information.

Product Image Description: A small, square electronic module with a label displaying "Beitian BN-880 GPS" and a serial number. It features multiple pins on one side and a connected wire harness with colored wires leading to a small connector. The module supports various GNSS constellations and includes an HMC5883L compass IC.

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Features

Pin Description

The module features a 6-pin connector for power, ground, serial data, and compass interface.

LED Indicators

1. TX LED: Blue. Indicates data output; flashes when transmitting.
2. PPS LED: Red. Not lit when GPS is not fixed; flashes when GPS is fixed.

Bottom View Description: An image showing the underside of the GNSS module, with markings including "RCIROCOMM" and other identifiers.

Dimensions

The BN-880 module has a compact form factor suitable for integration into various devices.

Dimensions: 28.0mm x 28.0mm x 10.0mm

Diagram Description: A visual representation illustrating the module's physical dimensions. One view shows the module with labels indicating 28.0mm for length and width, and 10.0mm for height. Another view is a top-down schematic outline, also showing 28.0mm dimensions and indicating pin locations (D2, D3, PPS, TX) and a central component area.

NMEA Data Output

The BN-880 module outputs standard NMEA 0183 messages, providing detailed navigation and positioning data. Below are examples and structures for common NMEA messages.

NMEA Message Output Sample

Example output strings:

$GNRMC,073114.00,A,2237.56240,N,11401.59614,E,1.329,21.11,020916,,,A,V*37
$GNVTG,21.11,T,,M,1.329,N,2.462,K,A*1B
$GNGGA,073114.00,2237.56240,N,11401.59614,E,1,12,0.78,112.9,M,-2.5,M,,*54
$GNGSA,A,3,19,05,02,06,17,12,09,13,,,,,1.48,0.78,1.26,1*01
$GNGSA,A,3,69,83,84,70,68,82,,,,,,,1.48,0.78,1.26,2*0E
$GPGSV,4,1,13,02,46,340,36,05,52,254,37,06,42,041,41,09,22,053,40,0*6E
$GPGSV,4,2,13,12,32,282,35,13,13,185,33,17,36,131,37,19,57,119,44,0*66
$GPGSV,4,3,13,20,03,237,,23,00,038,,25,09,311,19,42,51,128,32,0*60
$GPGSV,4,4,13,50,46,123,33,0*50
$GLGSV,2,1,08,68,25,027,39,69,78,011,36,70,40,213,43,74,00,259,,0*78
$GLGSV,2,2,08,82,06,124,36,83,46,085,44,84,44,358,41,85,05,324,14,0*74
$GNGLL,2237.56240,N,11401.59614,E,073114.00,A,A*7C

NMEA Message Talker IDs

GGA Message Structure

$xxGGA,time,lat,NS,long,EW,quality,numSV,HDOP,alt,M,sep,M,diffAge,diffStation*cs<CR><LF>

Example: $GPGGA,092725.00,4717.11399,N,00833.91590,E,1,08,1.01,499.6,M,48.0,M,,*5B

GLL Message Structure

$xxGLL,lat,NS,long,EW,time,status,posMode*cs<CR><LF>

Example: $GPGLL,4717.11364,N,00833.91565,E,092321.00,A,A*6

GSA Message Structure

$xxGSA,opMode,navMode{,sv},PDOP,HDOP,VDOP,systemId*cs<CR><LF>

Example: $GPGSA,A,3,23,29,07,08,09,18,26,28,,,,,1.94,1.18,1.54,1*0D

GSV Message Structure

$xxGSV,numMsg,msgNum,numSV,{,sv,elv,az,cno},signalId*cs<CR><LF>

Example: $GPGSV,3,1,10,23,38,230,44,29,71,156,47,07,29,116,41,08,09,081,36,0*7F

RMC Message Structure

$xxRMC,time,status,lat,NS,long,EW,spd,cog,date,mv,mvEW,posMode,navStatus*cs<CR><LF>

Example: $GPRMC,083559.00,A,4717.11437,N,00833.91522,E,0.004,77.52,091202,,,A,V*57

VTG Message Structure

$xxVTG,cogt,T,cogm,M,knots,N,kph,K,posMode*cs<CR><LF>

Example: $GPVTG,77.52,T,,M,0.004,N,0.008,K,A*06