Sparkfun GNSS Flex pHAT - LG290P

Sparkfun ElectronicsSKU: RB-Spa-2620
Manufacturer #: GPS-28929

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¥31,782

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Sparkfun GNSS Flex pHAT - LG290P
Integrates with Raspberry Pi via 40-pin header
Receives from GPS, GLONASS, Galileo, and more
Incorporates anti-jamming for reliable signal
Achieves RTK accuracy of 0.8cm
Operates in extreme temperatures -40°C to +85°C

The Sparkfun GNSS Flex pHAT - LG290P is a sophisticated development platform designed for integration with Raspberry Pi or similar single-board computers. It features the Quectel LG290P, a high-precision, multi-band RTK GNSS receiver, which is engineered for reliable navigation and positioning. This board requires an external antenna and a compatible single-board computer to function effectively.

The GNSS Flex pHAT serves as a carrier board for the SparkPNT LG290P GNSS Flex Module, interfacing through a 40-pin header. Its modular design, based on two 2x10-pin headers, ensures compatibility across various boards, facilitating easy upgrades and repairs. The module is capable of receiving signals from multiple GNSS constellations, including GPS, GLONASS, Galileo, BDS, QZSS, and NavIC, across several frequency bands. It also supports SBAS augmentation systems and RTK corrections, providing precision navigation with rapid convergence and dependable performance.

The device incorporates a built-in NIC anti-jamming unit, which employs advanced algorithms to detect and eliminate interference, thereby enhancing signal reception in challenging electromagnetic environments. This feature ensures reliable positioning even in complex scenarios such as urban areas and dense foliage.

Note: The LG290P module currently supports only UART interfaces, and some PPP services may not be fully implemented yet.

1x Sparkfun GNSS Flex pHAT
SparkPNT GNSS Flex Module LG290P
1x Tall GPIO Female Headers - 2x20 Pin
1x 50mm U.FL to U.FL Cable
4x Aluminum Hex Standoff (Thread: M2.5-0.45; Length: 16mm)
8x Phillips Machine Screw (Thread: M2.5-0.45x8mm)

12.2 x 16 x 2.6 mm

ZIP Files

40-pin socket for Raspberry Pi header
Two 2x20-pin, 2mm-pitch male headers for Flex modules
Antenna bridge
U.FL connector
SMA connector
MicroSD card socket
Qwiic connector
Indicator LEDs: Power (Red), PPS (Yellow), RTK (White), PVT (Blue)
Twenty-four jumpers: Raspberry Pi GPIO isolation (16), LED power isolation (4), I2C pull-up resistors (4)
Quectel LG290P GNSS receiver
Concurrent signal reception: 5 + QZSS
Frequency bands: L1, L2, L5, E6
GNSS constellations: GPS, GLONASS, Galileo, BDS, QZSS, NavIC
SBAS systems: WASS, SDCM, EGNOS, BDSBAS, MSAS, GAGAN
Built-in NIC anti-jamming unit
Power options: USB, 3.3V, Backup power
Interfaces: UART (3), I2C bus, PPS signal (1)
Supply voltage: 3.15–3.45V
Current consumption: 91mA (Normal Operation), 12μA (Power Saving Mode)
GNSS frequency bands: GPS, GLONASS, Galileo, BDS, QZSS, NavIC
Tracking channels: 1040
Horizontal position accuracy: Autonomous: 0.7m, RTK: 0.8cm + 1ppm
Vertical accuracy: Autonomous: 2.5m, RTK: 1.5cm + 1ppm
Velocity accuracy without aid: 0.03m/s
Accuracy of 1PPS signal: 5ns (RMS)
RTK convergence time: 5s
Time to first fix: Cold Start: 28s, Warm Start: 28s, Hot Start: 1.7s
Sensitivity: Acquisition: -146dBm, Tracking: -160dBm, Reacquisition: -155dBm
Dynamic performance: Maximum altitude: 10000m, Maximum velocity: 490m/s, Maximum acceleration: 4g
Update rate: Default: 10Hz, Max: 20Hz
Operating temperature: -40°C to +85°C

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