Adafruit Wireless Ultimate GPS Breakout - 66 channel w 10 Hz updates

Artikelnummer: AF746

Kategorie: Entwicklungsboard


47,54 €

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Beschreibung

Overview

The breakout is built around the MTK3339 chipset, a no-nonsense, high-quality GPS module that can track up to 22 satellites on 66 channels, has an excellent high-sensitivity receiver (-165 dB tracking!), and a built in antenna. It can do up to 10 location updates a second for high speed, high sensitivity logging or tracking. Power usage is incredibly low, only 20 mA during navigation.

The other cool feature of the new MTK3339-based module (which we have tested with great success) is the built in datalogging ability. Since there is a microcontroller inside the module, with some empty FLASH memory, the newest firmware now allows sending commands to do internal logging to that FLASH. The only thing is that you do need to have a microcontroller send the "Start Logging" command. However, after that message is sent, the microcontroller can go to sleep and does not need to wake up to talk to the GPS anymore to reduce power consumption. The time, date, longitude, latitude, and height is logged every 15 seconds and only when there is a fix. The internal FLASH can store about 16 hours of data, it will automatically append data so you don't have to worry about accidentally losing data if power is lost. It is not possible to change what is logged and how often, as its hardcoded into the module but we found that this arrangement covers many of the most common GPS datalogging requirements.

Technical Details of GPS Breakout

  • Satellites: 22 tracking, 66 searching
  • Patch Antenna Size: 15mm x 15mm x 4mm
  • Update rate: 1 to 10 Hz
  • Position Accuracy: < 3 meters (all GPS technology has about 3m accuracy)
  • Velocity Accuracy: 0.1 meters/s
  • Warm/cold start: 34 seconds
  • Acquisition sensitivity: -145 dBm
  • Tracking sensitivity: -165 dBm
  • Maximum Velocity: 515m/s
  • Vin range: 3.0-5.5VDC
  • MTK3339 Operating current: 25mA tracking, 20 mA current draw during navigation
  • Output: NMEA 0183, 9600 baud default, 3V logic level out, 5V-safe input
  • DGPS/WAAS/EGNOS supported
  • FCC E911 compliance and AGPS support (Offline mode : EPO valid up to 14 days )
  • Up to 210 PRN channels
  • Jammer detection and reduction
  • Multi-path detection and compensation

Technical Details of FGPMMOPA6H 

  • Built-in 15X15X2.5mm ceramic patch antenna on the top of module
  • Ultra-High Sensitivity: -165dBm (w/o patch antenna), up to 45dB C/N of SVs in open sky reception.
  • High Update Rate: up to 10Hz
  • 12 multi-tone active interference canceller [ISSCC 2011 Award -Section 26.5]
  • High accuracy 1-PPS timing support for Timing Applications (10ns jitter)
  • AGPS Support for Fast TTFF (EPO? Enable 7 days/14 days )
  • EASY?:Self-Generated Orbit Prediction for instant positioning fix
  • AlwaysLocate Intelligent Algorithm (Advance Power Periodic Mode) for power saving
  • Logger function Embedded
  • Automatic antenna switching function
  • Antenna Advisor function
  • Gtop Firmware Customization Services
  • Consumption current(@3.3V):
    • Acquisition: 25mA Typical
    • Tracking: 20mA Typical
  • E911, RoHS, REACH compliant

You can also cheek our "Dokumente" for more information

Package List:

1x Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz updates - Version 3

Dokumente

Bedienungsanleitung

MTK3329/MTK3339 command set sheet

LOCUS (built-in-datalogging system) user guide

Datasheet for the PA6H (MTK3339) GPS module

MT3339 GPS PC Tool (windows only)

PC Tool manual

Mini GPS tool (windows only)

EagleCAD PCB files on GitHub

Fritzing object in the Adafruit Fritzing Library

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Einträge gesamt: 1
5 von 5 Funktioniert auf Anhieb

Mit der Bibliotheksdatei Adafriut_GPS-Master gemäß Tutorial funktioniert das Modul auf Anhieb. Die Ausgabe der Koordinaten aus dem GPS-Modul entspricht dem Datenblatt ddmm.mmmm, d.h. dieses Format liefert nicht direkt die gewohnten Werte.
Für eine normale Nutzung muss man den vorderen Teil der Ausgabe (dd = Angabe in Grad) abtrennen. Der verbleibende Teil (mm.mmmm) bedeutet Minuten mit vier Stellen hinter dem Dezimalzeichen.
Zur Kontrolle der Umrechnung kann man die gewonnenen Koordinaten in google maps eingeben. Die Anzeige sollte dem eigenen Standort entsprechen.
Die Ausgabe von Werten nach Einschalten der Stromversorgung ist sehr schnell. Wie lange die Ermittlung eines weit entfernten Standortes dauert, habe ich bisher noch nicht ermittelt.

., 05.12.2017
Einträge gesamt: 1
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