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operations:big_screens
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operations:big_screens [2016/01/29 01:08] Warren Hankey |
operations:big_screens [2017/12/05 00:10] (current) 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. | + | ===Raspberry Pi Video Display=== |
| - | Please power-down the stairwell monitors using the switches under the main desk labelled Screen 1, Screen 2, ... when finishing an experiment or 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 4pm each day. | + | The Stairwell displays are run by four Raspberry Pi mini computers. Communication to the Pis is from the Ubuntu machine, ''auscope-screens'' at 131.217.62.142. User ''auscope'', password the usual. |
| - | The switch labeled Screen 4 also powers the Raspberry Pi's. | + | 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 Raspberry Pi's are shutdown automatically at 4:55pm each day by a cron job on ''auscope-screens''. |
| - | 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. | + | The power switch labeled Screen 4 also powers the Raspberry Pi's. |
| + | |||
| + | 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. | ||
| ==Instructions== | ==Instructions== | ||
| Line 14: | Line 16: | ||
| [3][4] | [3][4] | ||
| - | The four pi (and network switch) are connected to switch [4] power. | + | The four pi (and network switch) are connected to switch [4] power, and will boot and loop video when powered on. |
| - | A cron job on ''auscope-screens'' will shut the pi down at 3:55 pm daily (shutdownpi.sh). | + | 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. | + | If communication is lost, power cycle Pi's with power switch [4] under desk. |
| On boot the pi should start looping through randomly selected movies. | On boot the pi should start looping through randomly selected movies. | ||
| (play.sh called in /etc/rc.local on pi) | (play.sh called in /etc/rc.local on pi) | ||
| Line 32: | Line 34: | ||
| vncviewer pi3 | vncviewer pi3 | ||
| </code> | </code> | ||
| + | |||
| + | |||
| + | ==Network== | ||
| For remote access first ssh into auscope@131.217.62.142, then ssh the pi | For remote access first ssh into auscope@131.217.62.142, then ssh the pi | ||
| - | More detail in pi_network.txt on ''auscope-screens'' Desktop. | + | Outside internet access for the pi's is achieved by forwarding all packets through the ''auscope-screens' machine. |
| + | It appears to the outside world that all traffic emanates from 131.217.62.142 | ||
| + | More detail on the networking of the screen computers is in pi_network.txt on the ''auscope-screens'' Desktop. | ||
| + | |||
| + | ==Software== | ||
| useful software on pi: | useful software on pi: | ||
| Line 41: | Line 50: | ||
| epiphany (web browser) | epiphany (web browser) | ||
| - | ### turn off screen blanking on pis with line in /etc/lightdm/lightdm.conf under [SeatDefaults] | + | Turn off screen blanking on pis with this line in /etc/lightdm/lightdm.conf under |
| + | <code> | ||
| + | [SeatDefaults] | ||
| xserver-command=X -s 0 dpms | xserver-command=X -s 0 dpms | ||
| + | </code> | ||
| - | ### start x programs on startup in /etc/xdg/lxsession/LXDE-pi/autostart | + | Start x programs on startup in /etc/xdg/lxsession/LXDE-pi/autostart |
| - | ### epiphany-browser full screen, F11 | + | Epiphany-browser full screen, F11 |
/home/www/auscope/opswiki/data/attic/operations/big_screens.1454029724.txt.gz · Last modified: 2016/01/29 01:08 by Warren Hankey
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