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operations:big_screens
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operations:big_screens [2016/09/04 22:37] Warren Hankey |
operations:big_screens [2017/12/05 00:10] (current) Warren Hankey |
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| + | ===Raspberry Pi Video Display=== | ||
| + | |||
| 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 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. | ||
| 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''. | 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''. | ||
| - | The switch labeled Screen 4 also powers the Raspberry Pi's. | + | 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. | + | 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 17: | Line 19: | ||
| A cron job on ''auscope-screens'' will shut the pi down at 4:55 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 | ||
| + | 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. | 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 this line in /etc/lightdm/lightdm.conf under | + | Turn off screen blanking on pis with this line in /etc/lightdm/lightdm.conf under |
| <code> | <code> | ||
| [SeatDefaults] | [SeatDefaults] | ||
| Line 47: | Line 56: | ||
| </code> | </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.1473028677.txt.gz · Last modified: 2016/09/04 22:37 by Warren Hankey
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