Ultimate GPS Breakout with GLONASS + GPS - PA1616D - 99 channel w/10 Hz updates

This GPS breakout is built around the MTK3333 chipset, a no-nonsense, high-quality GNSS module that can track up to 33 satellites on 99 channels! It has an excellent high-sensitivity receiver (-165 dBm tracking!), and a built-in antenna. It can also do up to 10 location updates a second for high speed, high sensitivity logging, or tracking, it's power usage is incredibly low using only ~29 mA during navigation. Much like the original version of the Ultimate GPS, this one is even more ultimate (or the ultimate ultimate version), with support for more GPS-like networks such as GLONASS, for even more coverage worldwide.

Best of all, it has all the extra goodies you could ever want: an 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, there is also a FIX signal out on a pin so you can put an external LED on.

Two features that really stand out about the MTK3333-based module are the external antenna functionality and the built-in data-logging capability. The module has a standard ceramic patch antenna that gives it -165 dBm 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 also want a uFL to SMA adapter.
It comes with one fully assembled and tested module and a CR1220 coin cell holder.

There is a fantastic library for GPS usage, with background parsing, and can set and query the built-in GPS logging capability (called LOCUS) along with a full tutorial, which has tons of information about the module, how to use the data logger, example code for both CircuitPython & Arduino, and more.

Please Note:

• CR1220 coin cell is not included

• -165 dBm sensitivity, 10 Hz updates, 99 channels
• GPS + GLONASS support
• 5V friendly design and only 30mA current draw
• Breadboard friendly + two mounting holes
• RTC battery-compatible
• Built-in data logging
• PPS output on fix
• Internal patch antenna + u.FL connector for external active antenna
• Fix status LED
• External antenna support and Pulse-Per-Second output
• Satellites: 33 tracking, 99 searching
• Patch Antenna Size: 15mm x 15mm x 4mm
• Update rate: 1 to 10 Hz
• Position Accuracy: < 3 meters (all GPS technology has about 3m accuracy)
• Velocity Accuracy: 0.1 meters/s
• Warm/cold start: 34 seconds
• Acquisition sensitivity: -145 dBm
• Tracking sensitivity: -165 dBm
• Maximum Velocity: 515m/s
• Vin range: 3.0-5.5VDC
• MTK3333 Operating current: 34mA acquisition, 29  mA tracking
• Output: NMEA 0183, 9600 baud default, 3V logic level out, 5V-safe input
• 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 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"

• Datasheets, schematics, GitHub links, Fritzing and more
• Full tutorial, how to use the data logger, example code for both CircuitPython & Arduino, and more