14 lines
493 B
Markdown
Executable File
14 lines
493 B
Markdown
Executable File
Use LEDs on Raspberry Pi as status for network based on ping/dns. The `/sys/class/leds/<led>/<file(s)>'` must exist!
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As root.
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```
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crontab -e
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```
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Add the following lines.
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```
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*/5 * * * * ping -I wlan0 -c5 one.one.one.one && sh -c 'echo 0 | tee /sys/class/leds/ACT/brightness' || sh -c 'echo 1 | tee /sys/class/leds/ACT/brightness'
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*/5 * * * * ping -I wwan0 -c5 one.one.one.one && sh -c 'echo 0 | tee /sys/class/leds/PWR/brightness' || sh -c 'echo 1 | tee /sys/class/leds/PWR/brightness'
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```
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