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Adafruit Ultimate GPS FeatherWing
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$50.16
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The Adafruit Ultimate GPS FeatherWing brings precise, low-power GPS to the Feather ecosystem. Built around the MTK3339 chipset, it tracks up to 22 satellites...
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The Adafruit Ultimate GPS FeatherWing brings precise, low-power GPS to the Feather ecosystem. Built around the MTK3339 chipset, it tracks up to 22 satellites on 66 channels with -165 dBm sensitivity and delivers up to 10 position updates per second — all while drawing only 20 mA.
Simply plug the FeatherWing into any compatible Feather board and you've got accurate location data plus time-keeping synced to GPS satellites. It includes a FET-driven ENABLE pin for low-power control, a CR1220 coin cell holder for RTC backup and warm starts, and a u.FL connector for optional external antenna use.
Key Features
- 66-Channel Receiver – Tracks up to 22 satellites with -165 dBm sensitivity
- 10 Hz Updates – Up to 10 position updates per second for high-speed tracking
- Ultra-Low Power – Only 20 mA current draw during navigation
- Dual Antenna Support – Internal ceramic patch antenna plus u.FL connector for external active GPS antenna (auto-switching)
- Built-in Datalogging – Internal FLASH logging via LOCUS for autonomous data capture
- PPS Output – Pulse-Per-Second signal on GPS fix
- RTC Battery Backup – CR1220 coin cell holder for warm starts and timekeeping
- FET-Driven ENABLE Pin – Turn the GPS module on/off from any microcontroller pin for low-power projects
- Fix Status LED – Blinks at 1 Hz while searching, once every 15 seconds when fix is acquired
Ideal For
- Feather-based GPS tracking and datalogging projects
- Portable location-aware devices
- GPS time synchronisation
- Low-power outdoor sensor nodes
Package Contents
- 1× Adafruit Ultimate GPS FeatherWing (fully assembled with GPS module and coin cell holder)
- 1× Header strip for soldering
Compatibility Note: Works with all Feather boards except those with USB-Serial converters that use the UART pins. The ESP8266 Huzzah Feather and nRF52 Feather are not compatible.
Note: CR1220 coin cell battery not included — required separately for RTC backup and warm starts.
Tip: Most GPS antennas use SMA connectors — you may need a uFL-to-SMA adapter cable for external antenna use.
Resources
- Adafruit Ultimate GPS FeatherWing Guide – Schematics, pinout diagrams, example code for Arduino & CircuitPython
Jargon buster
Plain-language definitions for the technical terms used above.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- FeatherWing
- A FeatherWing is an add-on board made to plug into the Feather microcontroller board layout. Knowing a product is a FeatherWing helps you check whether it will physically and electrically fit your Feather-style mainboard.
- GPS
- The US satellite navigation system used by GNSS receivers to calculate position and time. Support for GPS is important because it is widely available and often used together with other constellations for more reliable positioning.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- RTC
- A Real-Time Clock keeps track of time even when the main processor is asleep or powered down, usually with a small backup battery. It matters for data logging and tracking projects that need accurate timestamps.
- SMA
- A threaded coaxial connector commonly used for antennas. It matters because you need antennas with matching SMA connectors, or suitable adapters, for the LTE and GNSS antenna ports.
- u.FL
- u.FL is a tiny snap-on antenna connector often used on compact wireless boards. A board with u.FL usually needs an external antenna, which matters if the product will be inside an enclosure or needs better antenna placement.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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