On Sun, Feb 17, 2013 at 10:30 PM, linuxers-request@mm.ilug-bom.org.inwrote:
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Today's Topics:
- Re: Ubuntu Global Jam Mumbai 2013 for Ubuntu Raring Ringtail (Rigved Rakshit)
- Re: How to detect a power failure? (gnulinuxist@gmail.com)
Message: 1 Date: Sun, 17 Feb 2013 02:21:02 +0530 From: Rigved Rakshit r.phate@gmail.com To: mumbailug@googlegroups.com, Mumbai LUG linuxers@mm.ilug-bom.org.in Subject: Re: [ILUG-BOM] Ubuntu Global Jam Mumbai 2013 for Ubuntu Raring Ringtail Message-ID: < CAEuhoydO7nY5nHW_4vpj96GKgBNRq4sa7370WbC+UK7fz4DWmA@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1
The dates are tentative because Canonical themselves have not released the dates. Once that is done, I will let you guys know the final dates. This is one of the "problems" of planning events ahead of time. But I am hoping that this will give everyone enough time to plan and attend the event!
Dates have been finalised. Now, it will be on March 2 and 3. Here is the event page: http://loco.ubuntu.com/events/indian-team/2235/detail/ . As of now, I have kept the event only on Saturday and Sunday. But if people are interested, I can keep it on Friday as well.
Best Regards, Rigved Rakshit
Message: 2 Date: Sun, 17 Feb 2013 14:54:55 +0000 From: "gnulinuxist@gmail.com" gnulinuxist@gmail.com To: "linuxers@mm.ilug-bom.org.in" linuxers@mm.ilug-bom.org.in Subject: Re: [ILUG-BOM] How to detect a power failure? Message-ID: 5120ef43.8148420a.567d.ffffb7ad@mx.google.com Content-Type: TEXT/PLAIN; charset=UTF-8
-----Original Message----- From: Arun Khan Sent: 16/02/2013, 01:45 To: GNU/Linux Users Group, Mumbai, India Subject: Re: [ILUG-BOM] How to detect a power failure?
On Fri, Feb 15, 2013 at 7:57 PM, Binand Sethumadhavan binand@gmail.com wrote:
I am thinking of something like a mobile charger that would plug in a regular 3-pin plug at one end and a computer at the other, and some software/sensor combo that would read the (DC) voltage at the computer
end.
If there is no voltage, there is no power in the mains and ergo - we are
in
the middle of a power outage, so take action. Know of something along
these
lines?
(idea is to detect power failures, while powered by a "dumb" UPS unit -
one
that cannot communicate with the a computer. Any other solutions/suggestions?).
Good idea. You could use one of those AC Mains to USB adapter/charger; which I think gives out 5V on the USB power line. A USB cable into the computer USB port should be a good starting.
-- Arun Khan
This usb idea is good. A usb powered device can be used where power comes externally for on/off and the system gives signal to detect that device is down. A cheap 200 rupees usb lan can be opened and modified. Every few minutes, the output of ifconfig can be grepped to detect the presence of eth(n). Battery power detect option is only in laptops.
Hey,
Im from Vasai, where we have frequent powercuts. I run a linux box at home which basically acts as my home server(box) I currently use the GPIO pin on my wifi router(running openwrt) to 'sense' powercuts, which in turn powers off the box and turns it back on when power resumes. Let me know if you'd like more details on the setup and code, I'd be happy to share :)
Regards, Joel Rebello