Jeff,
My external battery is a 8Ah (not very big) LA battery charged by a 10
watt solar panel. So power is extremely critical as my instrucment will
have to operate several days in cloudy, overcast, snowy days.
However, 0.125 watts seems like a lot in sleep mode. My bat3 does not
draw so much. You might want to get it checked with TS.
-Satish.
Jeff O'Brien wrote:
>
>
> Hi Satish,
> Thanks for your reply. This is exactly what I will be doing.
> It's too bad that the sleep command can't take two parameters, something
> like --sleep <sleep seconds> <wait seconds> that we we could give the main
> computer some time to do a graceful shutdown. I also had another thought
> along these lines. When the Bat3 functions as a UPS it knows when it has
> lost external power and sends a message to the main computer to do a
> graceful shutdown and this works quite nicely. If sleep functioned more like
> this procedure that would be perfect. So here's how it would work. We finish
> up everything that we are doing on the main computer and then issue the
> sleep command for 300 seconds. The bat 3 gets the message and starts it's
> counter and sends the same command back to the main computer that it sends
> during a power failure that causes a graceful shutdown. Maybe Derek could
> chime in on this idea and how hard or easy it might be to implement?
>
> There is one other issue I'm having and wondering if you are seeing as well.
> It might not be a concern for you as you are using a big lead acid battery.
>
> In our tests so far it appears that the Bat3 is using .125 watts in sleep
> mode. Can you confirm this. This is a little too much for our project.
>
> Thanks again.
> Jeff O'Brien
>
> > Jeff,
> > I am using the TS-BAT3 with 7260. I am doing an SD card boot (2.4
> > kernel) so these are my steps.
> >
> > * in /linuxrc (load the bat modules) This will enable the TS7260 to
> > control the TS-bat3 including going to sleep at a later stage.
> > * Run whatever I want in /linuxrc. Ex. I am getting data from a weather
> > station, writing to a log and then sending it via Iridium. I call this
> > program also in /linuxrc after the ts-bat3 files have been loaded
> > * Do a 'sync' to make sure the buffers are all flushed and everything is
> > written to the disk (SD card).
> > * Call the sleep function of the TS-bat3. This basically shuts off power
> > to the 7260 abruptly (hence the sync). After time has elapsed, bat3 will
> > supply power to the 7260 (waking it up). And the circle of life
> continues...
> >
> > There are few things that you need to be aware.
> > * JP7 on 7260 needs to be enabled for TS-bat3 to supply power to the
> > 7260. Make sure you also do not power the board when using the bat3
> > * ts-bat3 just shuts off power so you need to do sync or risk corrupting
> > your data.
> > * Sleep time is the time the system is off. So if want the system to
> > come up every 300 seconds, you need to calculate the sleep time plus the
> > time of operation=300.
> > * There are battery charging routines but I am not using them as the
> > bat3 is using power from lead acid battery in my setup.
> >
> > Cheers,
> > -Satish.
> >
> > Jeff wrote:
> >>
> >>
> >> Hi All,
> >> I have just did a search for BAT3 and read through about 165 posts. I'm
> >> still a little fuzzy on what the BAT3 can do for my particular need.
> >>
> >> I have a TS-7260 that is being used as the controller for an autonomous
> >> instrument system. This system will be on for 15-20 minutes then i need
> >> to be able to power it down and have some other external system wake it
> >> up at some programmable time interval. Can the BAT3 do this for me?
> >>
> >> The web page for this product would lead me to me believe that this is
> >> possible with the verbiage "Sleep mode w/ programmable wake-up".
> >> However, I am getting mixed answers to this question.
> >>
> >> If the answer is yes it can do it would you be able to give me a brief
> >> synopsis of how it works?
> >>
> >> Thanks for your time.
> >> Jeff O'Brien
> >>
> >>
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>
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