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operations:big_screens [2010/05/17 02:38] Jim Lovell created |
operations:big_screens [2016/08/01 00:28] Warren Hankey |
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+ | The Stairwell displays are run from the Ubuntu machine, ''auscope-screens'' at 131.217.62.142. User ''auscope'', password the usual. | ||
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+ | Please power down the stairwell monitors using the switches under the main desk labelled Screen 1, Screen 2, after hours to save power. Please power them up at 8-9am weekdays if you are in the control room. The display computers (Raspberry Pi's) are shutdown automatically at 4:55pm each day. | ||
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+ | The switch labeled Screen 4 also powers the Raspberry Pi's. | ||
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+ | There are instructions for controlling the displays on the Desktop of auscope-screens. You can ssh or vnc the Raspberry Pi's after first logging into the auscope-screens machine. The Pi's are on a subnet, quarantined from the uni network, routed through auscope-screens. The Pi's can display video, pdf's, slide shows in pdf format, and can access web pages and resources. | ||
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+ | ==Instructions== | ||
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+ | Turn off/on power switches for screens under desk in Auscope room (north west corner). | ||
+ | |||
+ | [1][2]\\ | ||
+ | [3][4] | ||
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+ | The four pi (and network switch) are connected to switch [4] power, and will boot and loop video when powered on. | ||
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+ | A cron job on ''auscope-screens'' will shut the pi down at 4:55 pm daily (shutdownpi.sh). | ||
+ | If communication is lost, power cycle with power switch [4] under desk. | ||
+ | On boot the pi should start looping through randomly selected movies. | ||
+ | (play.sh called in /etc/rc.local on pi) | ||
+ | |||
+ | You can ssh each pi[1-4], user is pi, e.g. | ||
+ | <code> | ||
+ | ssh pi@pi2 | ||
+ | </code> | ||
+ | |||
+ | SSH keys are all in place. Passwords are all the usual. | ||
+ | |||
+ | You can also vnc each pi[1-4], e.g. | ||
+ | <code> | ||
+ | vncviewer pi3 | ||
+ | </code> | ||
+ | For remote access first ssh into auscope@131.217.62.142, then ssh the pi | ||
+ | |||
+ | More detail on the networking of the screen computers is in pi_network.txt on the ''auscope-screens'' Desktop. | ||
+ | |||
+ | useful software on pi: | ||
+ | omxplayer (video) | ||
+ | gpicview (lightweight image viewer) | ||
+ | epiphany (web browser) | ||
+ | |||
+ | ### turn off screen blanking on pis with this line in /etc/lightdm/lightdm.conf under | ||
+ | <code> | ||
+ | [SeatDefaults] | ||
+ | xserver-command=X -s 0 dpms | ||
+ | </code> | ||
+ | |||
+ | ### start x programs on startup in /etc/xdg/lxsession/LXDE-pi/autostart | ||
+ | |||
+ | ### epiphany-browser full screen, F11 | ||