Thanks for your quick answer, Ankur.
Well, it seems like that's not my problem as I'm already releasing the
bus resource in the writePacketDone event. As I said, I've been
looking at the AD524X interface from the tmote invent sensorboard
drivers, so I guess the command calls sequence is right.
Is anyone using this topology generator?I would like to know how to set its
configuration file in order to make nodes receive or not receive packets
according to distance
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Hi all,
I am using the external flash (RAM is too small for my tasks) on
micaz motes and I am wondering hot to measure exactly the energy consumption in
the motes during the use of flash. Moreover, I was wondering how to measure
continuously (accurately) the motes' energy
Hello everybody
i am working on my graduation project in which i use wireless sensors from crossbow.
the main idea of this project is to determine the approximatelocation and distanceof a noise source using tinyos(v1.1) and the acoustic sensor.
my questions are:
1.is this application applicable
Hello,
On occasion(after a few days) a random mote will stop sending data and the red
led will
stay on until the reset button is pressed. (motes that fail do not recover).
Yes, it's annoying isn't it! I looked into this problem and couldn't decide
whether the problem was in Delta
or in the
Hi all...
I have a problem with a program I wrote for a Telos mote.I am sending the
data using Multihop routing technique.I have loaded the application into 2
modules, one with ' 0' address and another with ' 1' address..!!
The mote connected to the USB( ' 0' address) is sending the data
Aside from the size of the destination address field (16 bits I think)
there is no physical limit to how many re-Motes you can have. However
there is a bandwidth limit. For mica2's I measured about 25 messages
per second max.
For your magnetometer question I have no info, but the sensor's
data
Search back on this list for energy and power measurement...
But the basic idea would be to put a small resistor in line
with the battery/source and measure the voltage drop to
calculate current flow.
MS
Munaretto, Daniele wrote:
Hi all,
I am using the external flash (RAM is
I think there is a demo acoustic ranging app someplace already,
but you'll probably have to google around to find it.
You'll only need message routing if some of your re-Motes are
out of base-station range. That's a design decision...
MS
Mohammad Allouh wrote:
Hello everybody
i am working on
Hi,
I need to specify a larger stack size than the default one in nesC compiler.
Does anyone know how this is done? What is the default stack size allocated
by the linker?
Thank you,
~Radhika
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Hi all,
relating to the sim_gain_receive_handle function
(UscGainInterferenceModelC.nc file), I don't understand when the code that
checks if has been received a packet stronger than the others, i.e.
if ((list-power - sim_gain_sensitivity()) heardSignal())
could be false (heardSignal() adds
I'm cc'ing this to the help list for you...
This looks like a runtime error, not compilation...but anyway...
I think you have
CLASSPATH=$TOSROOT/support/sdk/java/tinyos.jar;.
so java should be able to find MessageListener in that tinyos.jar.
First make sure that the CP is really set in the
On Mar 21, 2007, at 2:51 PM, Salvo Fiduccia wrote:
Hi all,
relating to the sim_gain_receive_handle function
(UscGainInterferenceModelC.nc file), I don't understand when the
code that checks if has been received a packet stronger than the
others, i.e.
if ((list-power -
I want to make the following changes in the TinyOS packet.
1) Use some bits of the DstAddr field for a small counter.
2) Remove the Grp ID field
3) Remove the CRC field
4) Add a new field for SrcAddr.
5) Add a new field for MAC
Could someone give me an idea how to go about it? Currently, we are
i use tinyos 1.1.0 , is RFM component HPLRFMC component ? if not , which
file is RFM component in? thanks
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On Mar 21, 2007, at 5:15 PM, Abhishek Jain wrote:
I want to make the following changes in the TinyOS packet.
1) Use some bits of the DstAddr field for a small counter.
2) Remove the Grp ID field
3) Remove the CRC field
4) Add a new field for SrcAddr.
5) Add a new field for MAC
Could someone
Hi all,
I can't seem to figure out how to model lossless environment in Tossim, i.e.
100% packet delivery rate and error-free. I've searched the archives and
found a few messages on this subject, but they all refer to Tinyos-1.x. I am
using Tinyos-2
Thanks,
--
Lilia Paradis
I imagine the best way is in the link specification. Tutorial 11 talks a
little about this.
The method you're looking for is:
*
add(src, dest, gain)*: Add a link from *src* to *dest* with *gain*. When *
src* transmits, *dest* will receive a packet attenuated by the *gain* value.
From the
Hi Chad,
Thanks for quick response!
That's what I've been doing too, but I still have weird inconsistencies. My
grid network initializes and builds routing tree perfectly about 9 out of 10
times, but that one time some node somewhere never gets the message sent to
it.
I am thinking it must be
You're right even with a gain of 0 you'll still have the possibility of a
collision.
I might suggest looking into using the BinaryInterferenceModelC.nc instead
of the UscGainInterferenceModelC.nc. You'll need to use a different
ActiveMessageC.nc.
Cheers
Chad
On 3/21/07, Lilia Paradis [EMAIL
Dear all..
I am facing a problem abt the code tht i hav built, it was sending the data
only for a short interval of time...suppose if i hav pressed reset button on
the tmote sky module..it is sending the data again for some interval of time
and then stops again..i hav tried hard to figure out
Hi,
I am facing a similar problem on TOSSIM on tinyos 1.x. I have used the
LossyBuilder to generate a grid topology. Say there are four nodes 0 to 3. A
message sent by node 0 is not received by 1, 2, and 3 at the same time. There
are instances that a message that is broadcasted by 0 is not
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