SKU: 78980070127

SparkFun GPS Dead Reckoning Breakout - NEO-M8U (Qwiic)

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Description

SparkFun GPS Dead Reckoning Breakout - NEO-M8U (Qwiic)The SparkFun NEO M8U GPS Breakout is a high quality, GPS board with equally impressive configuration options. The NEO M8U takes advantage of u blox's Untethered Dead Reckoning (UDR) technology. The module provides continuous navigation without needing to make any electrical connection to a vehicle, thus reducing cost of installation for after market dead reckoning applications. This product requires an antenna: Any GNSS receiver will be fine, this

The SparkFun NEO-M8U GPS Breakout is a high quality, GPS board with equally impressive configuration options. The NEO-M8U takes advantage of u-blox's Untethered Dead Reckoning (UDR) technology. The module provides continuous navigation without needing to make any electrical connection to a vehicle, thus reducing cost of installation for after-market dead reckoning applications.

This product requires an antenna: Any GNSS receiver will be fine, this board uses a U.FL antenna connector but you can also use a U.FL adaptor if needed.

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Features

  • Integrated U.FL connector for use with antenna of your choice
  • 72-Channel GNSS Receiver
  • 2.5m Horizontal Accuracy
  • 30Hz Max Update Rate
  • Time-To-First-Fix:
    • Cold: 26s
    • Hot: 1.5s
  • Max Altitude: 50,000m
  • Max G: ≤4
  • Max Velocity: 500m/s
  • Velocity Accuracy: 0.5m/s
  • Heading Accuracy: 1 degrees
  • Built-In Accelerometer and Gyroscope
  • Time Pulse Accuracy: 30ns
  • 3.3V VCC and I/O
    • Current Consumption: ~29mA Continuous Tracking, Default Concurrent Mode
  • Software Configurable
    • Geofencing
    • Odometer
    • Spoofing Detection
    • External Interrupt
    • Pin Control
    • Low Power Mode
    • Many others!
  • Supports NMEA, UBX, and RTCM protocols over UART or I2C interfaces

The NEO-M8U module is a 72-channel u-blox M8 engine GNSS receiver, meaning it can receive signals from the GPS, GLONASS, Galileo, and BeiDou constellations with ~2.5 meter accuracy. The module supports concurrent reception of three GNSS systems. The combination of GNSS and integrated 3D sensor measurements on the NEO-M8U provide accurate, real-time positioning rates of up to 30Hz.

Compared to other GPS modules, this breakout maximizes position accuracy in dense cities or covered areas. Even under poor signal conditions, continuous positioning is provided in urban environments and is also available during complete signal loss (e.g. short tunnels and parking garages). With UDR, position begins as soon as power is applied to the board even before the first GNSS fix is available! Lock time is further reduced with on-board rechargeable battery; you'll have backup power enabling the GPS to get a hot lock within seconds!

Additionally, this u-blox receiver supports I2C (u-blox calls this Display Data Channel) which made it perfect for the Qwiic compatibility so we don't have to use up our precious UART ports. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.

U-blox based GPS products are configurable using the popular, but dense, windows program called u-center. Plenty of different functions can be configured on the NEO-M8U: baud rates, update rates, geofencing, spoofing detection, external interrupts, SBAS/D-GPS, etc. All of this can be done within the SparkFun Arduino Library!

The SparkFun NEO-M8U GPS Breakout is also equipped with an on-board rechargeable battery that provides power to the RTC on the NEO-M8U. This reduces the time-to-first fix from a cold start (~26s) to a hot start (~1.5s). The battery will maintain RTC and GNSS orbit data without being connected to power for plenty of time.

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Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78980070127

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Chalkey
Chelsea, US
★★★★★ 4
Yummy pigs ear
Flavor Name: Pig Ears, Size: 12 Count (Pack of 1)
These are my dogs "special" treat. These range in size from large to small ears but my dog loves them all the same. Great for heavy chewers.
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Reviewed in the United States on March 6, 2026
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Simchabe
Houston, US
★★★★★ 5
One-and-done treat for giant breeds (our 186lb foster approves)
Flavor Name: Pig Ears, Size: 12 Count (Pack of 1), Flavor Name: Pig Ears, Size: 12 Count (Pack of 1)
We foster a 186lb Saint Bernard, and finding treats that actually satisfy her without requiring half the bag has been a challenge. These pig ears? Game changer. What makes these work: - ONE ear = one satisfied dog (compared to other treats where the bag says “35 per day” and she’d still beg for more) - Keeps her busy for about 5 minutes of focused chewing - She does a little excited dance when she sees the bag—can’t even sit, just wiggles - Zero crumbs or mess because she devours every single bit, then spends the next hour sniffing around hoping another one appears - She immediately grabs it and heads to her favorite bed to settle in—doesn’t move until it’s gone The only “issue”: There’s a bit of oil/greasiness when handling them, but nothing a quick hand wash can’t fix (Mrs. Meyer’s Cucumber soap works great, just saying). Bottom line: If you have a giant breed and you’re tired of buying treats that require multiple servings or disappear in one bite, these are it. One ear, complete satisfaction, Subscribe & Save so they just show up like a present you forgot you ordered. Our girl Ellie gives them 186 pounds of approval.
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Reviewed in the United States on November 1, 2025
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Wildhorselover
Carnegie, US
★★★★★ 3
Size of Ears is Inconsistent
Flavor Name: Pig Ears, Size: 12 Count (Pack of 1)
A bit disappointing with the size, 1 large pig ear, the rest small and not actual whole pig ears. But Doggo enjoys them. No problems with digestion for him.
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Reviewed in the United States on March 18, 2026
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Traci
Whiting, US
★★★★★ 5
Just what the pet parent ordered
Flavor Name: Pig Ears, Size: 12 Count (Pack of 1)
As a furbaby parent of 2 huskies who are chewers in their first 3 yrs of their life, this product helps a lot. Very healthy, dogs love them, safe, and chewy. Definitely a winner. Love the price for my pockets. Give it a try, you won't be disappointed and your pup will thank you too.
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Reviewed in the United States on March 18, 2026
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Amazon Customer
Dallas, US
★★★★★ 1
Smell of plastic
Flavor Name: Pig Ears, Size: 12 Count (Pack of 1)
These had a very off-putting smell right out of the bag - each one smelled like plastic, almost as if they’d been sitting in the packaging for too long. My dog wouldn’t touch them at all, which says everything. Would not purchase again.
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Reviewed in the United States on April 30, 2026

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