SparkFun RTK Express Plus

Sparkfun ElectronicsSKU: RB-Spa-2012
Manufacturer #: GPS-18590

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Sale price $904.72

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  • 1x SparkFun RTK Express Plus


  • 132 x 101 x 32 mm / 5.2 x 3.9 x 1.2 inch
  • Internal Battery: LiPo 1300 mAh with 500 mA charging
  • Radio Port: 3.3 V TTL Serial (57600 bps RTCM TX/RX)
  • Data Port: 3.3 V TTL Serial (460800 bps NMEA)
  • Embedded OLED Display for available satellites, data logging, and more
  • Push-button controls
  • Qwiic Connector: Included
  • microSD Socket for optional logging: Included
  • Weight: 162 g (an entire device including battery)

GNSS Receiver (ZED-F9R)

  • Current: 68 mA - 130 mA
  • Time to First Fix: 25s (cold), 2s (hot)
  • Max Navigation Rate: PVT - 25 Hz | RTK - 20 Hz | Raw - 25 Hz
  • Horizontal Position Accuracy: 2.5 m without RTK | 0.010 m with RTK
  • Max Altitude: 50 km (31 miles)
  • Max Velocity: 500 m/s (1118 mph)

Bluetooth Transceiver (ESP32 WROOM)

  • Xtensa dual-core 32-bit LX6 microprocessor
  • Clock Frequency: Up to 240 MHz
  • Flash Storage: 16 MB
  • Internal SRAM: 520 KB
  • Integrated 802.11 BGN WiFi transceiver
  • Integrated dual-mode Bluetooth (classic and BLE)
  • Hardware-accelerated encryption (AES, SHA2, ECC, RSA-4096)
  • Deep Sleep Current: 2.5 µA

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