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→Shut down at specific time
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The Raspberry Pi is an inexpensive Linux computer which you can for example use to play back videos (up to | The Raspberry Pi is an inexpensive Linux computer which you can for example use to play back videos (up to Full-HD). This page shows you how to set it up: | ||
== Making the RapberryPi run a video at startup == | == Making the RapberryPi run a video at startup == | ||
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Make it start the script automatically: | Make it start the script automatically: | ||
sudo nano .bashrc | sudo nano .bashrc | ||
and right at the end put: | |||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
if [ $(tty) == /dev/tty1 ]; then | if [ $(tty) == /dev/tty1 ]; then | ||
./startup_script.sh | ./startup_script.sh | ||
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==Synchronizing multiple RaspberryPi== | ==Synchronizing multiple RaspberryPi== | ||
maybe you want to | maybe you want to give the different Pi different host names, so you don't get confused. Do it in the config utility: | ||
sudo raspi-config | sudo raspi-config | ||
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omxplayer-sync -lubv synctest.mp4 | omxplayer-sync -lubv synctest.mp4 | ||
-b flag to make screen background black | -b flag to make screen background black. (Remove -v for verbose mode later once everything works) | ||
Note: You can use the startup_script above to do this, just replace the omxplayer command with the omxplayer-sync command from here. | Note: You can use the startup_script above to do this, just replace the omxplayer command with the omxplayer-sync command from here. | ||
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The shutdown command has a timer built in, so when it is called like this | The shutdown command has a timer built in, so when it is called like this | ||
sudo shutdown -h 15:00 | sudo shutdown -h 15:00 | ||
the system will shut down at three in the | the system will shut down at three in the afternoon. | ||
sudo shutdown -h +30 | sudo shutdown -h +30 | ||
will shut the system down in 30 minutes from now. | will shut the system down in 30 minutes from now. | ||
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[https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=59520 source] | [https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=59520 source] | ||
==SD Card corruption issues== | ==SD Card corruption issues== | ||
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===How to minimize the risk of SD Card corruption=== | ===How to minimize the risk of SD Card corruption=== | ||
* Also read: [https://learn.adafruit.com/read-only-raspberry-pi read-only-raspberry-pi] | |||
* Make sure it is a proven, compatible and non-fake SD Card | * Make sure it is a proven, compatible and non-fake SD Card | ||
* A faster card may be more stable (shorter time to write - less times when it is dangerous when a power loss happens | * A faster card may be more stable (shorter time to write - less times when it is dangerous when a power loss happens | ||