[Tinyos-help] Packet sending question

Philip Levis pal at cs.stanford.edu
Thu Feb 19 12:32:29 PST 2009


On Feb 17, 2009, at 8:23 AM, 029758s at acadiau.ca wrote:

> Hello folks,
>
> I'm attempting to get my feet wet with TOS2 so I have some basic
> questions that my earlier attempts at research didn't answer.
>
> I'm basing the first little program off the RSSI demo that comes with
> TOS. I managed to get the demo working with two motes but I can't seem
> to get it working with three with one sender, one
> interceptor-forwarder and one BS. Essentially what I want is this:
>
> I have 4 motes #1..4 (4 being the BS)
> 1 and 2 create a packet containing their ID and transmit to 3
> 3 computes the RSSI, modifies the incoming packet with the RSSI and
> includes its own ID and transmits to 4
>
> I can get the motes to send but I still don't know how to create the
> packet I want. In TOS1 it was easy to simply define the packet
> structure how I wanted it but alas TOS2 still gives me grief. I found
> a number of sources on sending packets but they've all been examples
> of sending empty packets.
>
> So can anyone provide me with the insight on how to do this be it a
> tutorial or code snippet?

How about the RadioCountToLeds application?

Phil


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