Adafruit GPS Ultimate Breakout Board

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3,999.00

Product Code: RM3148

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Description

Adafruit GPS Ultimate Breakout Board

The Adafruit Ultimate GPS Breakout Board, which is 100% compatible with the Raspberry Pi, is the most advanced and complete GPS module available from Adafruit - it's got everything you want and more! This module is the Latest Version currently available (v3.1), which comes with external antenna support and Pulse-Per-Second output!

You will likely need the following products in addition to this breakout board to assemble a GPS project:

GPS SMA to uFL Adaptor Cable
28dB Active External Antenna

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.

Best of all, Adafruit added all the extra goodies you could ever want: a ultra-low dropout 3.3V regulator so you can power it with 3.3-5VDC in, 5V level safe inputs, ENABLE pin so you can turn off the module using any microcontroller pin or switch, a footprint for optional CR1220 coin cell to keep the RTC running and allow warm starts and a tiny bright red LED. The LED blinks at about 1Hz while it's searching for satellites and blinks once every 15 seconds when a fix is found to conserve power. If you want to have an LED on all the time, we also provide the FIX signal out on a pin so you can put an external LED on.

The Adafruit Ultimate GPS Breakout Board Features:

-165 dBm sensitivity, 10 Hz updates, 66 channels
5V friendly design and only 20mA current draw
Breadboard friendly + two mounting holes
RTC battery-compatible
Built-in datalogging
PPS output on fix
>25Km altitude
Internal patch antenna + u.FL connector for external active antenna
Fix status LED
CR1220 battery is not included.

Two features that really stand out about version 3 MTK3339-based module is the external antenna functionality and the the built in data-logging capability. The module has a standard ceramic patch antenna that gives it -165 dB sensitivity, but when you want to have a bigger antenna, you can snap on any 3V active GPS antenna via the uFL connector. The module will automatically detect the active antenna and switch over! Most GPS antennas use SMA connectors so you may want to pick up one of our uFL to SMA adapters.

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.

We've tested this version of the Ultimate GPS in a high-altitude balloon, and it kept fix up to 27km!

Technical Details:

Satellites: 22 tracking, 66 searching
Patch Antenna Size: 15mm x 15mm x 4mm
Update rate: 1 to 10 Hz
Position Accuracy: 1.8 meters
Velocity Accuracy: 0.1 meters/s
Warm/cold start: 34 seconds
Acquisition sensitivity: -145 dBm
Tracking sensitivity: -165 dBm
Maximum Altitude for PA6H: tested at 27,000 Meters
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
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
Firmware version 5153
Weight (not including coin cell or holder): 8.5g
Dimensions (not including coin cell or holder): 25.5mm x 35mm x 6.5mm / 1.0" x 1.35" x 0.25"