Hardware Basics

Physical features of platform

Bottom view of Qualcomm® Robotics RB3 platform

Qualcomm® Robotics Navigation Mezzanine board plugged into DragonBoard™ 845c development board

Top view of platform


As shown below, plug the 12-volt power supply into the barrel jack on the main board.To connect to a PC and send ADB commands, plug a cable into the USB Type C port.

To obtain debug logs, plug a cable into the Micro USB port. Then, connect to the PC using a serial terminal program such as PuTTY.

DIP switches

The Qualcomm Robotics RB3 platform features six DIP switches and four buttons, as shown here:

The schematics below correspond to those switches and buttons.

Cameras and brackets

If the Qualcomm Robotics RB3 is unassembled, refer to the instructions available from Thundercomm to connect the cameras needed for your application.

You will also need to determine the desired orientation (right-side up or upside down) for the camera.


As described above, refer to the Qualcomm Robotics RB3 Linux User Guide, available from Thundercomm (“Technical Documents” tab), for programming instructions. The guide includes sections on these topics:

  • Linux development environment
  • Firmware programming
  • Running Linux
  • Setting up the Robotics SDK
  • How to develop an application


As shown below, RF antennas for WLAN (2.4/5 GHz Wi-Fi) and Bluetooth are connected by coax cables between the development board and navigation mezzanine board.

For LTE B48, the RF antenna is connected by a coax cable to the optional machine communication mezzanine board, as shown below. For other LTE bands, connect the provided Taoglas antenna to J903.

Qualcomm Robotics RB3 and Qualcomm® Robotics Navigation Mezzanine are products of Qualcomm Technologies, Inc. and/or its subsidiaries.