ModalAI Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login
    1. Home
    2. Eric Katzfey
    • Profile
    • Following 0
    • Followers 11
    • Topics 1
    • Posts 1639
    • Best 73
    • Controversial 3
    • Groups 3

    Eric Katzfey

    @Eric Katzfey

    ModalAI Team

    76
    Reputation
    201
    Profile views
    1639
    Posts
    11
    Followers
    0
    Following
    Joined Last Online

    Eric Katzfey Unfollow Follow
    Qisda Forum ModalAI Team admin

    Best posts made by Eric Katzfey

    • How to stream hires camera at VGA resolution and simultaneously capture 4k30 to a file

      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.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • 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.

      posted in Qualcomm Flight RB5 5G Drone
      Eric KatzfeyE
      Eric Katzfey
    • RE: Ardupilot : connection with Mission Planner

      @Kessie Excellent, glad to hear you got it working! And thanks for adding the details on what you had to do to the posting!

      posted in VOXL 2
      Eric KatzfeyE
      Eric Katzfey
    • 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.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • 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.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • 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.

      posted in ROS
      Eric KatzfeyE
      Eric Katzfey
    • RE: Voxl 2 SDK 1.1.1

      @JoeC SDK 1.1.1 is now available. Please use the installer in the voxl2_SDK_1.1.1.tar.gz archive to install this.

      posted in VOXL SDK
      Eric KatzfeyE
      Eric Katzfey
    • RE: ModalAI uORB topic file handle location

      @Dan It's not really documented anywhere other than the source code. The best place to look is at the muorb module code. That is what implements the uorb communicator interface to allow advertisements, subscription requests, and topic data to flow between the DSP and the Linux side.

      posted in VOXL 2
      Eric KatzfeyE
      Eric Katzfey
    • RE: Voxl Streamer implementation with rtmp or dash streaming protocol

      @Hammas-Ali We have not tried either of those streaming protocols. Voxl is a Linux computer so it is likely that you can implement RTMP or DASH. voxl-streamer uses GStreamer so, if there are RTMP or DASH GStreamer elements available, it shouldn't be too hard to incorporate them.

      posted in VOXL
      Eric KatzfeyE
      Eric Katzfey
    • 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.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey

    Latest posts made by Eric Katzfey

    • RE: Testing voxl-vision-hub offboard code without arming the drone

      @Hector-Gutierrez We have actually used HITL for exactly this purpose which is nice because then you can see the flight behavior in the Gazebo visualization. Unfortunately, it's not a trivial matter to get everything setup to make it work with offboard mode since you need to have the VIO data that Gazebo generates go to voxl-vision-hub.

      posted in Starling & Starling 2
      Eric KatzfeyE
      Eric Katzfey
    • RE: VOXL2 HITL Sim with Gazebo in Docker - VTOL frame support

      @garret I have no idea what is necessary for VTOL but I would guess that there are probably some missing modules that you would need for that. You would need to do a custom build to bring in whatever is missing.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • RE: VOXL2 HITL Sim with Gazebo in Docker - VTOL frame support

      @garret We have not tried anything but quadcopter and I'm not aware of anyone else trying anything other than quadcopter.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • RE: Issue initializing three i2c devices on voxl-px4

      @Riccardo Make sure that the 2 devices sharing bus 4 have the same i2c frequency.

      posted in VOXL 2
      Eric KatzfeyE
      Eric Katzfey
    • RE: Issues with M9N GPS and Ardupilot

      @cguzikowski No, there is no Ardupilot configuration file needed in /etc/modalai

      posted in VOXL 2
      Eric KatzfeyE
      Eric Katzfey
    • RE: VOXL2 HITL Sim with Gazebo in Docker - gazebo/voxl2 communication

      @garret Very likely. But you also have some errors on gazebo launch that I have never seen before so that could be part of the problem as well.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • RE: VOXL2 HITL Sim with Gazebo in Docker - gazebo/voxl2 communication

      @garret I use the Sparkfun CAB-12977 and CAB-17240 for HITL and it works really well.

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • RE: VOXL2 running always hot - Is it safe ? Are there alternatives ?

      @Hector-Gutierrez Point a small fan at the VOXL 2 while you have it on your desktop. You need to have air flow. When it is on a drone and flying you get a lot of airflow from the propellers but on the desktop you should have a small fan.

      posted in Starling & Starling 2
      Eric KatzfeyE
      Eric Katzfey
    • RE: Using SIYI Gimbal and Smart RC Controller with VOXL2

      @Jetson-Nano VOXL 2 does not have PWM out. You would need our IO expander board M0065 to bridge between UART and PWM. https://www.modalai.com/products/voxl2-io?variant=40610514206771

      posted in Ask your questions right here!
      Eric KatzfeyE
      Eric Katzfey
    • RE: Issues with M9N GPS and Ardupilot

      @cguzikowski Yes, we have tested Ardupilot with GPS and have customers using Ardupilot with GPS. However, I don't know that anyone has ever tried with an M9N unit so perhaps there is some issue with that. Can you try with one of these: https://store.3dr.com/mini-gps-ublox-max-m10s/?

      posted in VOXL 2
      Eric KatzfeyE
      Eric Katzfey