ArduSimple simpleRTK 4 Dual Board

ArduSimple simpleRTK 4 Dual Board offers a dual antenna GPS board with u-blox ZED-X20D for centimeter precision and out-of-the-box moving baseline. This standalone board allows evaluation of triple-band RTK GNSS technology, including centimeter-level position accuracy and sub-degree heading accuracy. The simpleRTK 4 dual board connects to Arduino, Ardupilot/Pixhawk (JST connector), Raspberry Pi, Nvidia Jetson, and STM32 Nucleo platforms as a shield. This board provides up to 25 RTK positions and attitude (heading) every second. The simpleRTK 4 dual board supports an onboard XBee socket to expand functionality with plugin accessories (MR/LR/XLR radios, Bluetooth, Wi-Fi, Ethernet, Dataloggers, RS232, Canbus, and 4G/3G/2G).

Features

  • Test u-blox ZED-X20D performance
  • Onboard XBee socket to expand functionality with plugin accessories (MR/LR/XLR radios, Bluetooth, Wi-Fi, Ethernet, Dataloggers, RS232, Canbus, and 4G/3G/2G)
  • Allows evaluation of triple-band RTK GNSS technology, including centimeter-level position accuracy and sub-degree heading accuracy
  • Connects to Arduino, Ardupilot/Pixhawk (JST connector), Raspberry Pi, Nvidia Jetson, and STM32 Nucleo platforms as a shield
  • Provides up to 25 RTK positions and attitude (heading) every second

Specifications

  • ZED-X20D:
    • Centimeter-level precision:
      • <1cm with a base station up to 35km
      • <1cm with NTRIP up to 35km
      • <4cm with SSR corrections
      • <1.5m in standalone mode
      • <0.9m standalone with SBAS coverage
    • 1Hz default update rate with maximum performance up to 10Hz
    • GNSS attitude accuracy:
      • 1m antenna separation:
        • 0.14° heading
        • 0.23° pitch/roll
      • 5m antenna separation:
        • 0.03° heading
        • 0.05° pitch/roll
    • L1, L2, L5 and L6 multi band support
    • Multifrequency and multiconstellation:
      • L1C/A L2C L5 GPS
      • L1OF and L2OF GLONASS (disables in areas under sanction)
      • E1-B/C E5a E6 HAS Galileo
      • L1OF L2OF Glonass
      • B1I B1C B2a B3I BeiDou
      • L1C/A L2C/B L2C L5 QZSS
      • L1-SPS L5-SPS Navic
      • WAAS, EGNOS, MSAS, GAGAN, and SouthPAN SBAS
    • Start-up times:
      • First position fix:
        • 25 seconds (cold)
        • 2 seconds (hot)
      • <10s warm start
      • 35 seconds (cold) first RTK fix
    • RAW data output in UBX format
    • Base and rover functionality
    • -40°C to +85°C operating temperature range
    • CE certification
    • RED and RoHS documentation
  • Interfaces:
    • USB
    • UART
    • XBee
    • Timepulse
    • Event

Pinout

ArduSimple simpleRTK 4 Dual Board
Published: 2026-09-07 | Updated: 2026-09-15