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The SparkFun GPS Dead Reckoning Breakout - NEO-M8U Qwiic is a high-quality GNSS board designed for more stable position tracking. It uses the u-blox NEO-M8U module with Untethered Dead Reckoning, helping it keep tracking even when GPS signal becomes weak or briefly lost.
This breakout can receive signals from GPS, GLONASS, Galileo, and BeiDou. It supports up to 72 channels, with around 2.5m horizontal accuracy and up to 30Hz update rate. This makes it useful for mobile robots, vehicle tracking, navigation projects, and outdoor data logging.
The built-in accelerometer and gyroscope help improve movement tracking in cities, parking areas, tunnels, and other places where GPS can drop out. It also has an onboard rechargeable battery for faster hot starts, reducing lock time to about 1.5 seconds after backup data is saved.
Connection is simple through the Qwiic I2C connector, so you can connect it without soldering. Standard 0.1-inch pins are also available for breadboard use. The board supports UART and I2C, plus NMEA, UBX, and RTCM protocols.
Key Features:
- u-blox NEO-M8U GNSS module
- Untethered Dead Reckoning support
- GPS, GLONASS, Galileo, and BeiDou reception
- 72-channel GNSS receiver
- About 2.5m horizontal accuracy
- Up to 30Hz update rate
- Built-in accelerometer and gyroscope
- Qwiic I2C connector
- UART and I2C support
- NMEA, UBX, and RTCM protocol support
- Onboard rechargeable backup battery
- 3.3V VCC and I/O
- Requires a U.FL GPS/GNSS antenna
FAQ
Will this ship from Manila?
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Do you ship nationwide?
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Can I get this on a school PO or class order?
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Is this compatible with Arduino, ESP32, or Raspberry Pi?
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
What's your return policy?
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Do you offer technical support?
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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