Projector client
The idea is to up an interface/client for the projector, in order to play & display video/audio over the network remotely. This will allow for less shuffling and more compatibility with a wider range of devices, for which we may not have all the cables. It also allows for mobile devices, such as phones and tablets, to share media to the projector directly.
Contents
[hide]Usage
- SSH Acces:
ssh -p 47382 pi@62.220.135.197
| Name | Implemented | Usage |
|---|---|---|
| Reverse VNC
For linux |
Yes | DISPLAY=:0 vncviewer -listen 0 -fullscreen -x11cursor #on pi
x11vnc -connect 62.220.135.197:5500 -noxdamage #on laptop |
| VNC
For Mac/Android/iOS/Win |
Yes | vncviewer on pi, any vnc server |
| AirPlay
Mac & iOS |
Yes! | Select 'Projector' in AirPlay. Audio/Video streams and Mirroring(!)
Use https://github.com/elcuervo/airplay on Linux |
| PiCast
Any/* Usage */ |
Sortof | http://62.220.135.197/PiCAST/goCAST.php?website=example.com |
| Synergy
Linux/Mac/Win |
Sortof | Mouse and keyboard control
Doesn't work at the moment |
| MiraCast
Android devices |
No | Android screen mirroring |
| DLNA | No | Send via DLNA (AllShare Cast on Samsungs) |
| LimeLight | No | Send from nVidia GTX 700 and 800 series cards |
The parts still need to be automated, a web control interface is desirable. Currently the clients need to be launched manually, although this can be done via ssh - scripts are available. More clients can be added as needed, and a further control interface for the projector and stereo system will need to be put in place.
Goal
Data goals
- Presenters to broadcast their presentations or demonstrations remotely during workshops
- YouTube and other streaming video to be streamed directly to the projector
- Play music directly from personal library or music streaming services (e.g. Pandora)
- Share project photos or videos directly from personal devices
- Your idea here
Control goals
- Turn on and off projector using IR signals (to allow for cooling)
- Have a script that automatically launches the correct data source
- Maybe use a dedicated port for streaming, then run nmap every x seconds scanning for port, and then stream from the correlated IP?
- e.g 5905 for VNC
- e.g 1205 for HTTP x264 streams
- Maybe use a dedicated port for streaming, then run nmap every x seconds scanning for port, and then stream from the correlated IP?
- Link with trigger interface?
Obstacles
- There aren't any solid similar solutions for remote screen sharing, we have to hack something together
- Will the Raspberry Pi's power be sufficient?
Component
Screen sharing
HTTP x264/h264
Advantage of HTTP x264 sharing is reduced lag (RPi limited to 100mbit ethernet) VLC screen sharing (screen://) on sender + omxplayer on Pi (for hardware acceleration) (reeealy sketchy atm, can't get to work)
VNC
xtightvncviewer on Pi
x11vnc or your favorite server on your laptop
Veency on iOS
DroidVNC on Android
AirPlay
perl-net-sdp + shairport on Pi --> http://www.raywenderlich.com/44918/raspberry-pi-airplay-tutorial works now
rPlay for AirPlay mirroring (sketchy)
DLNA/UPnP
MPD
sudo apt-get install mpd basically
Maybe something like http://www.raspyfi.com/ ? Maybe we can build a nice interface too.
Chromecast
Turns out it's not really chromecast, it's a tool that allows you to open websites automatically and in full screen. Works with general websites, youtube links (opens FS and autoplay), netflix links, and a few other things by sending a link to the pi. Sounded better when I first heard of it.
PulseAudio
LimeLight (?)
Limelight is an open-source Java client which allows you to stream games from your home PC (as long as you have an Nvidia GTX 600 or 700 Series graphics card and enough bandwidth on your home network) to the Raspberry Pi that’s attached to your television. (You do have a Raspberry Pi attached to your television, right?) And it’s not just Steam games: any content can be streamed. Right now, only mouse and keyboard are supported, but there’s work being done to support other controllers too. So now you can play PC content from the machine upstairs in the study on that great big flatscreen monolith in the corner of your living room, from the comfort of your own sofa.
https://github.com/irtimmer/limelight-pi
Control
Use RPi to turn on/off projector via IR LED, also (maybe) change the input of the stereo system. [2]
Synergy was also installed on the Pi to allow access remotely
Schedule
- December 2013 - Zephyz bought pi with gcmalloc, sasha and noskill, each contributed 10 CHF, and the SD Card provided by fixme/rorist. Raspbian was set up and updated, ssh access was set up (see above), and experimentation began.
- January 2014 - The Raspberry Pi was mounted in a custom 3D printed thing next to the projector, all the wires were hooked up and made tidyish. PiCast, VNC, Synergy and AirPlay were installed. Development rigorous at times.
