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+--- Thread: Power OFF/ Shutdown Button via GPIO Pin? (/thread-130.html)
Power OFF/ Shutdown Button via GPIO Pin? - jhschnauzer - 14-02-23
Hello -
I have SamplerBox up and running on RPi4B/8Gb with Blokas Pisound audio cape. It works perfectly.
I searched the forum for "shutdown" and "pisound"... have not found answer to these questions:
(Note: I have always understood that it's bad practice to simple unplug a linux OS... rather it's better to run: shutdown -P now )
- Is that true for this version of SamplerBox (e.g., I believe that Joseph Ernest's site's version of Debian OS booted read only... to minimize file system corruption if power was unplugged.) should not simply be unplugged?
- If I'm running the system "headless"... is there a recommended procedure for shutdown?
- If we need to run "shutdown" command... the Pisound board has a single button (GPIO 17)... any objections to monitoring that with interrupt to call "shutdown"on 5-second long press?
RE: Power OFF/ Shutdown Button via GPIO Pin? - bbishop - 25-02-23
Because Hans has setup samplerbox to boot as Read Only it should be safe to power down just by unplugging (at least, that's what I always do), the only time you need to worry about proper shutdown is if you've entered R/W mode for like, editing the config file or what have you.
RE: Power OFF/ Shutdown Button via GPIO Pin? - Guest - 26-02-23
(14-02-23, 17:31)jhschnauzer Wrote: Hello -
I have SamplerBox up and running on RPi4B/8Gb with Blokas Pisound audio cape. It works perfectly.
I searched the forum for "shutdown" and "pisound"... have not found answer to these questions:
(Note: I have always understood that it's bad practice to simple unplug a linux OS... rather it's better to run: shutdown -P now )
- Is that true for this version of SamplerBox (e.g., I believe that Joseph Ernest's site's version of Debian OS booted read only... to minimize file system corruption if power was unplugged.) should not simply be unplugged?
- If I'm running the system "headless"... is there a recommended procedure for shutdown?
- If we need to run "shutdown" command... the Pisound board has a single button (GPIO 17)... any objections to monitoring that with interrupt to call "shutdown"on 5-second long press?
Hello, You can always use a power adaptor with switch button in the cord. Thats the one i use. Cheers.