My questions are regarding DayDream standalone
1. Since this is an untethered VR HMD how are Apps installed? Micro USB, wireless network etc ?
Trying to find into on the Google VR Develop page, any help finding a link is appreciated.
The CPU is a SnapDragon in DayDream standalone are there other processors?
Since the DayDream standalone is Cloud AR/VR over 4G/5G network and does not require an external PC/CPU how does (a) latency and (b) game experience compare to a wireless HMD running games from a separate PC?
daydream uses the phone in the HMD
Related
I've combed through the SDK and haven't found anything promising. I'd like to keep a Mavic Air on a "standby" mode, if at all possible. I see that I can power off the motors, but I'm not sure how significantly that will drop the current consumption. Has anyone tried to sleep a DJI programatically with the SDK?
As far as I know, the drones from DJI do not have a "standby" mode.
I'm working with a Mavic Pro and after some tedious research on the internet I've come to the conclusion that the only way to keep a DJI drone powered an arbitrary amount of time is to use an autonomous charging platform.
From my experience with Mavic Pro, the battery of the drone lasts ~1.5-2h when not flying and the motors are kept off. The remote Controller discharged faster while being kept on (~1.5h).
The Mavic Pro Remote Controller has two USB outputs, which enables connecting to the smartphone and charging simultaneously.
A related question can be found here:
Programming a complete autonomous dji drone? take off - follow a flight path - land
Can I test my DJI SDK for Windows 10 application with a DJI Drone simulator without the risk of running a real DJI Drone?
I am asking since it is cumbersome to have developers run a real drone in their office to test what they are building.
There are 2 ways to test applications but both require a physical drone.
1) Download and install the PC Simulator; this is a game-engine that connects the PC (USB) to a drone and displays the flight operations. It is available online under the developer downloads.
2) Using the API, you can enable simulator. This method is not as good because you cannot see in real-time what the aircraft is doing unless you receive and display flight details within your app.
Both act the same to the PC simulator can be easier to evaluate and observe the flight operation.
You can set your drone in a simulator mode using the APIs.
This will make your drone respond as if it was flying, but the motors won't turn on.
After that, you can use the DJI Assistant to visualize the aircraft moving in a simulated 3D environment.
이후선
11月7日 CST14:30
Can Phantom 4 and Inspire 2 be programmed on a PC?
I wonder if I can program the drones directly through the PC and acquire the images.
Phantom 4 has a smart device attached. I wonder if I can use the other smart device (iPhone, iPad) to control the dron without using the smart device which is basically installed.
In case of Inspire 2, I use smart device and controller with USB connection. I wonder if smart device and controller can be connected wirelessly without using USB.
I am curious about the communication method of Phantom 4 and Inspire 2.
I wonder what communication frequency should be used to directly control the drone via PC.
I wonder if I can program Phantom 4, Inspire 2 using the DJI Developer-ONBOARD SDK.
thank you..
No, you would need to use the mobile SDK as a bridge (PC talks to the mobile app, mobile app controls the aircraft)
I'm not sure which smart device you mention. If you mention the Phantom 4 Pro remote controller with attached screen, you can just swap to a regular remote without and use an iOS or Android device. In case of the Crystal Sky, you can simply remove it and use another device.
Unfortunately no.
PC control see #1, frequency, 2.4 and 5.8 GHz are commonly used and configurable using DJI Go.
Unfortunately no, for OnBoardSDK supported products see at the bottom of this page.
I can not comment yet. So this is rather additional option how to get video/images from Phantom 4 to PC directly.
1.In the menu of DJI GO app you can setup video streaming, trough RTMP. So video in resolution 720p will be stream.See this tutorial https://afsyaw.wordpress.com/2017/07/06/processing-images-from-the-dji-matrice-100-and-zenmuse-x3-without-the-manifold/
2.While on your Linux machine you can setup video stream server such as NGINX.Tutorial here https://obsproject.com/forum/resources/how-to-set-up-your-own-private-rtmp-server-using-nginx.50/
3.Than you can use OpenCV usb-video lib for ROS to process video or images.
If you have Matrice 100. There is also existing HDMI port on the controller. If you will use USB-HDMI grabber such as Immilet or Magwel - both support Mac,Windows,Linux drivers.You can skip step 1, also video stream is better.
I have a question to you and I really hope you can provide me some information.
I wish to build a media center because I have not found any possibilities to cast my stuff straight to the big screen from my Windows mobile phone.
Off course there is the wireless display adapter from Microsoft but I wish not to cast my whole display to my tv.
After testing a few product (Amazon fire tv box, apple tv 3, display dock and the wireless dock) I came to the conclusion that I can not have an all in one solution which fits my perceptions.
From that point I thought that I have to build my own "tv application".
Ok ok... There is kodi(xbmc) and so on... But I think this is just making a detour.
Following features must be included:
running on Windows 10
Cast music, videos and pictures.
Ability to launch and download windows store apps.
Project Rome implementation to share data across devices.
Seems possible but here´s one big problem...
If we are talking about mediaboxes, we do talk about those small boxes besides your tv. Instead off building a micro ATX setup, I want to take this to the next level... using IoT (Raspberry Pi 3).
Using IoT may have some advantages but there are a few disadvantages I have to worry about.
Will Windows 10 work properly on IoT (advantages - disadvantages)
Media streaming?
ARM architecture
Bluetooth, WIFI, Ethernet connectivity
I have never ever worked on IoT before, so I am kinda noob again. I´am asking for some advices to make this possible.
[UWP] How can I stream data (e.g. video, music, images) to another application?
[UWP] Implement a remote control - just like the amazon fire tv controler ?
Advantages - Disadvantages of using Windows 10 on a Raspberry Pi ?
Using windows 10 default applications (Groove Music, Images, Videos - Application) to play incomming data?
What do you think? Is it possible to create a Mediacenter which is running on a raspberry pi using windows 10?
Thank you in advance.
The most straightforward idea would be to create an always-running app with a MediaPlayerElement with a Source property that can be set programmatically by a remote control app. A remote control app could also control the pause, play, next, previous actions.
Be aware that there is no hardware video acceleration support for Raspberry Pi on Windows IoT Core yet, and probably that also won't come soon. There are other devices that do have proper video drivers (look at the hardware support page of Windows IoT Core).
Also be aware that there is no Windows Store on Windows IoT Core, unless you are an OEM (then you can publish your properly signed apps in an official way to devices that are managed by you).
A simpler way would be to buy a Windows 10 box from aliexpress. Then you can use Miracast to stream your screen, install apps from the App Store and play films directly on it, for example using Kodi for which remote control apps exist.
I have been long interested to develop on the platform. I even got the tools installed already on my desktop but I can't upgrade my WDDM from 1.0 to 1.1. To make things simple: my graphics chips are not up to the task of running the emulator.
If I still buy a Windows Phone (e.g. a Nokia Lumia) for development purposes, can I sideload and test my apps there efficiently instead of going against the emulator?
If I still buy a Windows Phone (e.g. a Nokia Lumia) for development purposes, can I sideload and test my apps there efficiently instead of going against the emulator
Yes, of course. It's very easy and convenient. You have debugger and all the goodies. Advantage of the emulator is the test option for 256MB devices.
That's exactly what I used to do prior to upgrading my devstation. The nominal min spec says 3G but with a real phone it worked fine in 2G and as you say this also sorts out graphics limitations.
Note that the setting for whether the emulator or physical device is used is stored in the project, so if you accept a project from someone else you will have to set it once prior to debugging.
Well there are 2 sides of the coin. With the physical device you can test most of the things, but with a few limitations
You will not be able to test internet related test cases - For example, if you have an app which uses internet connectivity then you will not be able to test it on the device easily because
The device does not use the machine internet connectivity
When connected to the PC the device's internet connectivity(Data connection 3G/ wifi/GPRS) is broken.
You will have to purchase an account right from the first day you want to test your app. If you have the emulator working then you could postpone this for atleast few days.