Designed and manufactured in Boulder, Colorado, USA, the SparkFun RTK mosaic-X5 is the perfect solution for your high-precision positioning and navigation needs. Based on the multi-constellation, multi-frequency, L1/L2/L5-ready mosaic-X5 from Septentrio, this is our most advanced RTK product to date.
RTK is short for Real Time Kinematics. A satellite positioning receiver capable of RTK takes in the normal signals from the Global Navigation Satellite Systems (GNSS) along with a separate correction data stream to achieve improved positional accuracy. The mosaic-X5 is a 448-channel "all in view" receiver which supports GNSS signals from GPS (USA), GLONASS (Russia), Beidou (China), Galileo (Europe), NavIC (India) plus special additional satellites (e.g. SBAS and QZSS). The mosaic-X5 also has built-in on-module support for other L-band correction services.
The RTK mosaic-X5 can be configured as an RTK Base, where it feeds corrections to other RTK Rovers, or as an RTK Rover, where it can use corrections to achieve a horizontal positioning accuracy of 6 millimeters (0.6cm) (plus 0.5 PPM). For robotics and autonomous systems applications, the mosaic-X5 can deliver position updates at 100Hz (100 times per second). The mosaic-X5 is a very sophisticated chip running a full internal web page server; the position can be monitored, and the module is fully configured through that web page using a standard browser.
Looking for a GNSS receiver that can log directly in RINEX format? This is it! The mosaic-X5 can be configured to log RINEX files with different durations and intervals. It can also log data in standard NMEA or Septentrio's SBF binary format. SBF files can be converted to RINEX using Septentrio's RxTools.
Under the hood, the RTK mosaic-X5 is based on the mosaic-X5 GNSS module from Septentrio, plus the Espressif ESP32-WROVER processor (16MB flash, 8MB PSRAM). The mosaic-X5 has USB-C connectivity (with Ethernet-over-USB), multiple UARTs, and supports full Ethernet connectivity. The only interface it doesn't offer is WiFi, so we've included the ESP32 with its own Ethernet connection. You can connect the mosaic-X5 directly to your Ethernet network - our product supports Power-over-Ethernet too. Or you can link the mosaic-X5 Ethernet port to the ESP32 Ethernet port and have the ESP32 provide WiFi connectivity. The ESP32 becomes an Ethernet to WiFi Bridge in that mode, seamlessly passing WiFi traffic to and from the mosaic-X5 via Ethernet.
We've designed the RTK mosaic-X5 to be robust and lab-friendly. Internally, all electronics (except the Qwiic OLED display) are mounted on a single circuit board. The mosaic-X5 GNSS antenna and ESP32 WiFi / Bluetooth antenna are connected via robust SMA connectors. IO connections are made via a robust 3.5mm header with cage screw connections. The IO voltage is selectable between 3.3V and 5V. The Reset and Log switches have been positioned carefully; Log is easily clicked when required, and Reset is flush and requires a more assertive press. (This helps prevent accidental resets when connecting to the ESP32 USB port.) The edge of the microSD card protrudes slightly when inserted, making it easy to eject and re-insert. Then there is the beautiful custom extruded aluminum case with machined end panels and slotted flanges, making it simple to install the RTK mosaic-X5 in a weatherproof enclosure up on the roof or in your server rack.
The RTK mosaic-X5 has multiple power options. Any or all of these can power it: the mosaic-X5 USB-C connection, the ESP32 USB-C connection, Power-over-Ethernet (36V to 57V), or an external DC power source between 9V and 36V. The GNSS SMA antenna connection provides 5V for the included active L1/L2/L5 antenna instead of the usual 3.3V.
Our kit includes everything you need to get up and running. Please see the 'Includes' tab for more information.
SparkFun RTK mosaic-X5
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