The OpenRTK330LI EVK

1. Introduction

The OpenRTK evaluation kit (EVK) is a hardware platform to evaluate the OpenRTK330 GNSS RTK/INS integrated positioning system and develop various applications based on this platform. Supported by the online Aceinna Navigation Studio the kit provides easy access to the features of OpenRTK330 and explains how to integrate the device in a custom design. The OpenRTK EVK is shown below after unpacking.

_images/EvalKit.png

where

  • 1: ST-Link debugger
  • 2: Multi-Constellation Multi-frequency GNSS antenna
  • 3: Micro-USB cable
  • 4: OpenRTK330 Evaluation Board (EVB) with metal flat mounting board
  • 5: 12-V DC adapter with 5.5 x 2.1 mm power jack

2. OpenRTK330 EVB

An OpenRTK330 Evaluation board is shown below in detail

_images/EvalBoard.png

where

  • 1: OpenRTK330 GNSS/IMU integrated module

  • 2: GNSS antenna SMA interface

  • 3: Espressif ESP32 bluetooth module

  • 4: SWD/JTAG connector, 20-pin

  • 5: Extension connector with 6-pin interfaces from left to right

    • GND
    • Not Connected
    • Not Connected
    • Connects to pin #56 “USER_UART2_TX” of the OpenRTK330 module
    • Connects to pin #55 “USER_UART2_RX” of the OpenRTK330 module
    • 1PPS outlet
    1. Extension connector with 6-pin SPI interfaces from left to right
    • Connects to pin #29 “USER_MOSI” of the OpenRTK330 module
    • Connects to pin #30 “USER_SCK” of the OpenRTK330 module
    • Connects to pin #31 “USER_NSS” of the OpenRTK330 module
    • Connects to pin #32 “USER_MISO” of the OpenRTK330 module
    • Connects to pin #39 “USER_DRDY” of the OpenRTK330 module
    • GND
    1. Boot mode switch with two positions (A and B)
    1. RJ45 jack for Ethernet interface
    1. Micro-USB port
    1. CAN interface
    1. Power jack for 12-v adapter
    1. EVB working status LEDs from left to right
    • Yellow: ST GNSS chipset is powered on and working properly
    • Red: valid GNSS base station data receiving
    • Green: valid GNSS signal receiving