SKM53 GPS modulis

Charakteristikos

Suderinama su Arduino™ ir *duino	Taip
Maitinimo įtampa	3-5V (DC)
Dažnis	1Hz
Jungties žingsnis	2 mm (pridedamas perėjimas į 2,54mm)
Jungties tipas	Male (vyr.)
Kontaktų kiekis	6
Matmenys	30 x 20 x 12 mm
Komunikacijų sąsajos	Nuosekli sąsaja
Naudojami mikrovaldiklio prievadai	2vnt. UART (TX, RX)
Pagrindinės funkcijos grandynas	SKM53
Jautrumas	-165 dBm

Apie prekę

SKM53 Series with embedded GPS antenna.It is based on MediaTek3329 single-chip architecture.SKM53 can be applied in a portable device and receiver like PND, GPS mouse, car holder, personal locator, speed camera detector and vehicle locator.

Features
- Ultra high sensitivity: -165dBm
- 22 tracking/66 acquisition-channel receiver
- WAAS/EGNOS/MSAS/GAGAN support
- NMEA protocols (default speed: 9600bps)
- Internal back-up battery and 1PPS output
- One serial port and USB port (option)
- Embedded patch antenna 18.2 x 18.2 x 4.0 mm
- Operating temperature range: -40 to 85
- RoHS compliant (Lead-free)
- Tiny form factor 30mm x20mm x 11.4mm

Specifications:

Receiver Type	L1 frequency band, C/A code 22 Tracking / 66 Acquisition-Channel
Sensitivity	Tracking Acquisition	-165dBm -148dBm
Accuracy	Position Velocity Timing (PPS)	3m 3D RMS without SA 0.1m/s without SA 60ns RMS
Acquisition Time	Cold Start Warm Start Hot Start Re-Acquisition	36s 33s 1s <1s
Power Consumption	Tracking Acquisition Sleep/Standby	<30mA @ 3V Vcc 40mA TBD
Navigation Data Update Rate	1Hz
Operational Limits	Altitude Velocity Acceleration	Max 18,000m Max 515m/s Less than 4g
Antenna Specifications	OutlineDimension Center Frequency Bandwidth Impedance Axial Ratio Polarization	18.2 x 18.2 x 4.0 mm 1575 ± 3 MHz 10 MHz min 50 Ω 3 dB max RHCP
Mechanical requirements	Dimension Weight	30mm x20mm x 11.4mm 9g
Power consumption	VCC Current	5V ±5% 55mA(typical)
Environment	Operating temperature Storage temperature Humidity	40 ~ +85 (w/o backup battery) 0 ~ +125

Arduino Code:

/*
RXD Arduino Pin 3
TXD Arduino Pin 2
RST Leave Open (Connect to a N/O momentary switch pulled low to reset?)
NC Leave Open
GND Ground
VCC +5
Make sure you download TinyGPS.h
*/

#include <TinyGPS.h>
#include <SoftwareSerial.h>

unsigned long fix_age;

SoftwareSerial GPS(2,3);
TinyGPS gps;
void gpsdump(TinyGPS &gps);
bool feedgps();
void getGPS();
long lat, lon;
float LAT, LON;

void setup(){
GPS.begin(9600);
Serial.begin(115200);
}

void loop(){
long lat, lon;
unsigned long fix_age, time, date, speed, course;
unsigned long chars;
unsigned short sentences, failed_checksum;

// retrieves +/- lat/long in 100000ths of a degree
gps.get_position(&lat, &lon, &fix_age);

getGPS();
Serial.print("Latitude : ");
Serial.print(LAT/100000,7);
Serial.print(" :: Longitude : ");
Serial.println(LON/100000,7);
}

void getGPS(){
bool newdata = false;
unsigned long start = millis();
// Every 1 seconds we print an update
while (millis() - start < 1000)
{
if (feedgps ()){
newdata = true;
}
}
if (newdata)
{
gpsdump(gps);
}
}

bool feedgps(){

while (GPS.available())
{
if(gps.encode(GPS.read()))
return true;
}
return 0;
}

void gpsdump(TinyGPS &gps)
{
//byte month, day, hour, minute, second, hundredths;
gps.get_position(&lat, &lon);
LAT = lat;
LON = lon;
{
feedgps(); // If we don't feed the gps during this long routine, we may drop characters and get checksum errors
}
}