On Tuesday 17 May 2011, Eric Smith wrote:
> Hi
> 
> I am considering using the Freerunner as a mobile gateway to track
> GPS on a vehicle and to receive data from wireless sensors in the
> vehicle and send the sensor data and GPS data through GPRS.
> 
> We may need to plug a customised wireless device into the freerunner
> usb. An external GSM and GPS antenna will be used. The device will
> have to run reliably and be robust for 8 to 12 weeks, so that means
> a customised battery.
> 
> Power use efficiency means putting keeping the device in low-power
> consumption mode for most of the time and waking every 30 minutes
> (say) for polling and transmitting.
> 
> Has anyone implemented such a solution or has ideas about feasibility?

Nobody has talked about doing this IIRC, but it certainly sounds feasible. 
External power can be supplied via the usb y-cable arrangement, so shouldn't 
be a problem. atd-over-fso will let you wake from suspend to do what you want 
on an interval.

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