1. Overview

This application note describes how to connect the PMD flexx2 3D camera to the NavQPlus board, and use the Royaleviewer camera UI running on the NavQPlus for streaming data from the camera.

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https://3d.pmdtec.com/en/3d-cameras/flexx2/

2. Connecting the Camera

To connect the PMD flexx2 camera to the NAVQPlus kit, use a USB 3.1 Gen 1 compatible USB cable and connect the camera to the USB1 port of the carrier board. Alternatively, the flexx2 camera can be connected to a USB hub that is plugged into the USB1 port of the NAVQ+.

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The following picture illustrates connection of the camera and display to the kit:

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3. Software Setup

With some USB hubs the NavQPlus USB1 port may not switch into the host mode automatically, leading to a situation when the flexx2 camera cannot be detected by the NavQPlus USB subsystem. In such case the USB1 port should be switched to host mode manually using the below command:

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The default password for the sudo command in the above command example is “user”.

4. Running Royaleviewer

On the NavQPlus display, navigate to the Gnome application menu, and find the Royaleviewer icon. Run the Royaleviewer application, then press the “Start” button in the bottom right corner. The PMD flexx2 camera will initialize and start streaming the 3D visualization of the surrounding area.

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The following picture illustrates Royaleviewer running on a 800x480 HDMI display connected to the NavQPlus:

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5. Known Problems And Limitations

NAVQP-174: WIFI connection may freeze when the flexx2 camera is connected to the USB1 port of the NavQPlus. The Ethernet connection should be used for working around this problem.

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