There is a new module under development that allows you to pipe VGA (640x480) video from the hires camera at 30fps via MPA so that it can be streamed with voxl-streamer using RTSP while simultaneously saving 4k HD video at 30fps encoded as h265 into a file, preferably on the SD card on voxl. This module is now available in beta and will be officially released in upcoming releases of the voxl SDK for voxl, rb5-flight, and voxl 2. The beta package is available using wget https://storage.googleapis.com/modalai_public/modal_packages/archive/voxl-hires-server_0.0.1.ipk
. It is meant for use on voxl only and is compatible with voxl platform release 3-3-0-0.5.0-a. In order to use it with voxl-camera-server, reconfigure voxl-camera-server to not use the hires camera. For example, call voxl-configure-cameras
and choose option 1 Tracking + Stereo
to allow voxl-camera-server to access the tracking and stereo cameras but not the hires camera. Then you can use voxl-hires-server for the hires camera. Use voxl-hires-server -h
to see the available options. More documentation will be available upon official release of this new package.
![](https://lh6.googleusercontent.com/-3Kh9NEhLmRs/AAAAAAAAAAI/AAAAAAAAAAA/AMZuucmAyTpFxBbnilR0Q4xsF_KK-KGOcQ/photo.jpg)
Eric Katzfey
@Eric Katzfey
Best posts made by Eric Katzfey
-
How to stream hires camera at VGA resolution and simultaneously capture 4k30 to a file
-
RE: Streaming 4K video from Qualcomm RB5 drone
@kitkatSG Yes, we have enabled most resolutions in that sensor now and are preparing a release to address this issue.
-
RE: having trouble using docker on the sdcard
@JoeC Seems like it is an SD card issue. I was able to recreate the problem when using a SanDisk Extreme 32GB card. But when using a SanDisk Ultra 16GB card everything works fine.
-
RE: Maximum I2C Clock Frequency
@Morten-Nissov 1MHz is a supported clock rate for i2c on the DSP based on what I can see in the code. But we have never tried running a device at 1MHz on i2c so it's tough to say why it wouldn't be working for you.
-
RE: VOXL2 I2C access from FC
@ceu-gomez PX4 on VOXL2 is composed of two separate applications. One is on the applications processor (running Ubuntu) and the other is on the DSP (running Qurt RTOS). They use the muorb module to communicate topic data back and forth. The spare i2c on J19 is mapped to the DSP, not the applications processor, so Ubuntu has no access to it. To gain access to it on Ubuntu side with PX4 running would require some new code. This is something that is on our development roadmap but no definitive answer on when we will be able to get to it.
-
RE: Custom px4-firmware build on StarlingV2
@smilon Yes, in order to build you can follow the README in the voxl-px4 project. The Docker provides the build environment so you need to use it.
-
RE: QGroundControl Autoconnect when on same network with VOXL SDK
@Sam-Kiley When on public 3G / 4G / 5G networks we use a VPN and assign fixed addresses to each system component with our VPN configuration. You should be able to do a similar thing with your 5G private network. Does your private network have a connection to the Internet or is it self contained? I don't know anything about 5G private networks but I'd be surprised if it didn't have a way to assign the same IP address to a device on the network so that you effectively have a static IP. Earlier versions of the RB5 SDK set the MAV_BROADCAST parameter in PX4 to 1 and PX4 would then use the network broadcast address to send out it's initial messages. Any QGC instance running on the network will receive that broadcast and respond so that you get automatic connection. However, this can be problematic if there are more than one instance of QGC running since you may connect to an instance that you don't want. Also, some wireless networks do not support broadcast.
-
RE: VOXL2: Adjusting bandwith of video streaming
@Curious By default the voxl-streamer application assumes a wireless link. But you can change the configuration as needed. See https://docs.modalai.com/voxl-streamer/
-
RE: voxl-streamer client repetitive connect/disconnect
An update to UVC camera support has been started. It will increase number of supported cameras by allowing MJPEG and will increase number of supported viewers including latest QGroundControl versions. Target availability is mid-December.
Latest posts made by Eric Katzfey
-
RE: Accessing the service data inside MAVSDK
@Jetson-Nano Our services transfer data using MPA pipes which are modeled on top of standard Linux pipes. So, yes, you can access those pipes within a docker.
-
RE: CPU Temperature Throttling
@Rowan-Dempster Take a look at the cpufreq documentation. For example https://docs.kernel.org/admin-guide/pm/cpufreq.html. You can use this information on VOXL 2 to see how CPU frequencies are being set.
-
RE: Starling2 Dual Tracking Sensor AR0144
@navin_kaviyarasu Our currently supported VIO method is only single camera. Our upcoming solution which we are actively testing and tuning is based on OpenVINS and works with multiple cameras.
-
RE: Modalai PX4 Branch vs main PX4 branch
@jmltt Our fork was started from commit e8d12e26c2cea24d63c7657c7dbecbfd2c82fb0f. We added lots of things since then! But the most important things have been brought back into mainline PX4, although often in a somewhat different format to appease the PX4 development community. I have test flown v1.15 RC 1 on my Starling 2 like drone. I think you should be able to fly a Sentinel with it. In terms of what is missing I'd say most of it was specific things requested by various customers for their particular needs. One note: The RB5 drone is not supported.
-
RE: mRo u-Blox ZED-F9 RTK L1/L2 GPS + external magnetometer hookup
@jonathankampia Yes, both qmc5883l and ist8310 are supported now.
-
RE: GPS Polling?
@groupo This code https://gitlab.com/voxl-public/voxl-sdk/services/voxl-vision-hub/-/blob/master/src/mavlink_io.c?ref_type=heads#L156 sets up a pipe client to listen for Mavlink messages in the voxl-vision-hub application
-
RE: local position NED issues - resetting and severe altitude drift
@jonathankampia Do you have any sort of external vision or distance sensor being fed into PX4? How is the parameter EKF2_EV_CTRL set?
-
RE: local position NED issues - resetting and severe altitude drift
@jonathankampia voxl-inspect-pose displays the pose from VIO.
-
RE: Missing install_build_deps.sh in voxl-opencv
@nuallaino Did you try without running install_build_deps.sh? Perhaps that step isn't required for voxl-opencv and the instructions need to be updated.
-
RE: Help!!! When flying can't control speed
@cy208183395 Can you test this with SITL? Does it work fine there but not on VOXL 2?