# Qualcomm Dragonwing RB3 Gen 2 Development Kit user guide – Ubuntu Identify and understand components, layout, hardware connectors, DIP switches, and GPIOs in the Qualcomm Dragonwing^™^ RB3 Gen 2 Development Kit. To set up the Development Kit and flash the software, see the [Qualcomm Dragonwing RB3 Gen 2 Development Kit quickstart – Ubuntu](https://docs.qualcomm.com/bundle/publicresource/topics/80-90441-1/qsg-landing-page.html). ## Introduction What’s in the box Provides an overview of the Dragonwing RB3 Gen 2 Development Kit variants and their components. https://docs.qualcomm.com/doc/80-90441-251/topic/introduction.html#unbox-kit ## Hardware overview Get familiar with the board Watch a video about the Dragonwing RB3 Gen 2 Development Kit architecture and board. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#rb3-board-overview [LEDs and buttons](https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#leds-buttons) > > > Learn about LEDs statuses and uses of buttons on the mainboard. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#leds-buttons [Connectors](https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#connectors) Familiarize yourself with the connectors and ports on the mainboard. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#connectors [Vision mezzanine](https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#vision-mezzanine) > > > Learn about the key components and connectors on the mainboard and Vision mezzanine. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#vision-mezzanine [Sensors](https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#sensors) Learn about the sensor types, placement, part numbers, and other details about the sensors available on mainboard and Vision mezzanine. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#sensors [Ethernet](https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#ethernet) Learn about the Ethernet interface and connectors on the interposer board. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#ethernet [Mainboard RF antennas](https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#mainboard-rf-antennas) Understand the types of antennas supported on the mainboard. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_hardware_overview.html#mainboard-rf-antennas ## Power cycle Mainboard power Power up the Development Kit to initiate the setup process. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_mainboard_power.html#mainboard-power ## Emergency download mode EDL mode Run sample applications using an integrated application development environment for Qualcomm development kits. https://docs.qualcomm.com/doc/80-90441-251/topic/rb3_gen2_force_edl_mode.html#edl ## References [Low-speed and high-speed expansion connectors](https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#ls-hs-connectors) Shows the low-speed (LS) and high-speed (HS) connector locations, GPIOs, and pin numbers. https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#ls-hs-connectors [DIP switches](https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#dip-switches) Shows the DIP switch location and description of functionality. https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#dip-switches [Custom camera sensor](https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#custom-camera-sensor) Connect a custom camera sensor with the Dragonwing RB3 Gen 2 development kit. https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#custom-camera-sensor [Reference designs and related documents](https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#rel-docs) Find reference designs, schematics, and documents. https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#rel-docs [Acronyms and terms](https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#acronyms-and-terms) List of acronyms and terms used in this document. https://docs.qualcomm.com/doc/80-90441-251/topic/references.html#acronyms-and-terms Last Published: Aug 13, 2025 [Next Topic Introduction](https://docs.qualcomm.com/bundle/publicresource/80-90441-251/topics/introduction.md)