Adafruit Ultimate GPS FeatherWing

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AdafruitSKU: K143
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This FeatherWing plugs right into your Feather board and gives it a precise, sensitive, and low power GPS module for location identification anywhere in the world. As a bonus, the GPS can also keep track of time once it is synced with the satellites.

Works with all Feathers except for the ESP8266 Huzzah Feather (the hardware UART is taken)

It has everything you need and more:

  • • -165 dBm sensitivity, 10 Hz updates, 66 channels
  • • Only 20mA current draw
  • • RTC with coin battery backup
  • • Built-in datalogging
  • • PPS (pulse per second) output on fix
  • • Internal patch antenna + u.FL connector for external active antenna
  • • Fix status LED

The Wing 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 MTK3339-based module has external antenna functionality. 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.

If you are looking for a non Feather GPS module, you can find the Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz updates - Version 3 here

  • A FET-driven ENABLE pin so you can turn off the module using any microcontroller pin for low power use
  • A CR1220 coin cell holder to keep the RTC running and allow warm starts
  • A 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.
  • Comes as a fully assembled 

Please note: CR1220 coin cell not included

  • Satellites: 22 tracking, 66 searching
  • Patch Antenna Size: 15mm x 15mm x 4mm
  • Update rate: 1 to 10 Hz
  • Position Accuracy: < 3 meters 
  • Velocity Accuracy: 0.1 meters/s
  • Warm/cold start: 34 seconds
  • Acquisition sensitivity: -145 dBm
  • Tracking sensitivity: -165 dBm
  • Maximum Velocity: 515m/s
  • 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

Breakout board details:

  • Weight (not including coin cell battery): 8.8g
  • Dimensions: 22.9mm x 51.2mm x 6.7mm / 0.90" x 2.02" x 0.26"

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