Technical Specifications

###A.Hardware

• Pi 2 CPU - 900MHz quad-core ARM Cortex-A7 CPU with VideoCore IV 3D graphics core
• Pi 2 Memory - 1GB
• HDMI output with TV on/off and force HDMI source controls (optional RCA output available)
• Audio - Both on HDMI and 3.5mm Audio Jack
• Standard 5V USB power supply (min 0.75A, 2A recommended)
• Minimum 8GB Class 10 micro SD card(both Software and Content are stored here)
• Connectivity - Ethernet, Pi compatible USB Wifi adapter and USB tethering support
• IP Address - Default DHCP client, can be changed to Static Mode 

Refer to Raspberry Pi site for more details

###B.Supported Content Formats

• Video - MP4/H.264 video full HD(1080p) or 720p format (server converts other formats to MP4/H.264 format)
• Image - JPG/PNG/GIF, Images beyond zone resolution are made to fit maintaining aspect ratio
• HTML5 - upload single file with .html extension or full repository with .repo extension(index.html in root directory as the entry point)
• Google Calendar Support
• http Streams which are supported by livestreamer for pi
• rtsp Streams(for e.g. from IP camera)
• web links (with no flash content, heavy JavaScript sites may be sluggish due to CPU limitations)
• Ticker for messages and RSS feed

###C.Player Software

• OS - Built on top of standard Raspbian OS (configuration and few boot scripts modified during installation)
• Framework - node.js, server listening on port 8000
• Server real-time communications - Web-socket
• Display - webkit
• File Downloads - wget
• OS plus Software Size - Upto 3GB needed for OS
• Image size - 1.1GB Compressed
• Auto restart on crash, Software upgrade and License download from Server, Debug command console at server
• Previous Image fallback in case of Software upgrade failure
• File System Check and Repair on every boot
• Support for Boot time video play
• Network and Server configuration support with USB keyboard(F6 or Ctrl-n for setup, Ctrl-T for terminal)
• Software needs License file to run, otherwise a standard Ticker message is displayed
• Admin interface at :8000 (default credentials pi & pi)
• Storing and uploading of hourly log of player activity, TV on and connectivity
• Event reporting to server and detailed debug log stored locally
• Overscan adjustment for TV
• Landscape and Portrait mode along with 1080p or 720p support for both Browser and Video
• CPU id based Registration and Monitoring

###D.Server Software

• Based on MEAN(mongodb, node.js, Express.js, AngularJS) stack
• Open Source server version is available at git hub
• Hosted service is available at pisignage.com (free hosting upto 3 players)
• Register players using CPU id or auto detection in local server mode
• Arrange players in Groups for easy deployment
• Status panel to monitor current status, last reported, last synced, software update and other parameters
• Issue debug shell commands to individual player

User Management(Available only with hosted service)

• Self signup with username selection which is also installation name
• One installation per user with free 3 player licenses
• Add collaborators (group-wise access is planned), Change password for content access, Delete players

Reports(Available only with hosted service)

• Map-reduce of various stats to show at user level (player stats, connectivity, playlist stats)
• Drill down to individual player or items to access detailed stats
• Log messages for the events
• Screenshots (planned feature)

###E.Operations ####i. Organise Players

• Register Players using the CPU id at pisignage.com (in case of local server they are reported automatically)
• Players under a group have the same playlist playing all the time and have a single Deploy command
• Organise players under groups

####ii. Upload and Manage Assets

• Upload files or Create links or Calendar
• Rename or delete the asset files
• Assign Categories for filtering purposes
• Watch the asset wherever possible

####iii. Playlist Management

• First create a playlist
• Select files for the playlist with duration for non-video assets(video is played to completion)
• Simple drag and rearrange for order of play
• Select a layout from the available layouts
• Add a ticker with messages or RSS feed
• Playlist can be advertisement playlist with assets inserted in between the main playlist which is being played
• In case of multi-zone layouts, add files for other zones, if no file is specified for a zone, the previous content will continue to play
• Save the changes

####iv. Deploying to Groups

• Assign 1 or more playlists to a Group
• Schedule playlists for playing for a duration(date range) or particular time of Day(only time and no date)
• Assign advertisement playlists if needed
• Select Display mode (landscape/portrait, 1080p/720p)
• Deploy to the groups
• Status of download shown under player tab       

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