Hi,
I believe that the topology generation tool generates one value of
noise to be consistent with an older version of TOSSIM.
The way the current version is intended to be used is that you
collect a noise trace in your environment (at least 100 samples long)
and then input this trace
Hi,
How can I broadcast a packet via radio from Basestation? Since TOSBase
already implement a RadioSend to forward to radio packets received from
UART, I tried:
1. Add another GenericComm component and use SendMsg to handle the
application broadcast packet.
2. Use exist RadioSend
Dear all
I installed tinyos2.0 (xp, cygwin), now im trying to get the RSSI value ,
when the installation finished i didnt find the Rssi Demo in
$TOSROOT/opt/tinyos2.0/*apps*/*tutorials*/ , so i copied it from CVS, I have
read all the codes of Rssi Demo carefully, when I try to upload the
Hello ,
I received a shipment of the tmote mini development kit. The development
board works fine.
But can somebody please explain, how to check if everything is in order with
the Tmote Mini and the programming fixture.
My questions:
*1. How to use tmote-bsl to download say CountRadio program
Hi All,
I am facing packet loss problem with CTP in TinyOS 2.0(using the
release 2.0.2) on telosb.
Initially, I faced this in my modified-MultiHopOscilloscope code where
I was accepting multiple
message types and forwarding them to the Root node, but since I had
changed some code,
included a
hello
I've read in the forum that there are three main values for signal
quality (tinyos, tossim 2.x) :
- the power which traduce the signal power (i've read in tossim the
power is set up to 0 dB and then it is equal to gain value entered)
- the gain which is the extenuation of the signal
On Wed, Jun 25, 2008 at 7:09 AM, Gaurav Chandwani
[EMAIL PROTECTED] wrote:
Hi All,
...
I saw a strange behaviour using SerialForwarder - When the application
is running for some hours, sometimes, i dont receive messages from a
particular node for some minutes and then it comes back again.
On Wed, Jun 25, 2008 at 8:27 AM, Gaurav Chandwani
[EMAIL PROTECTED] wrote:
Hi Omprakash,
Thanks for the quick reply.
Viable path - I see the node lost behaviour even with nodes that are
directly connected(no hop, very close) to the root node.
Do you mean something else by viable path ?
TOSSIM (T2) has no notion of node positions--it just cares about link gains
and noise.
You can specify an explicit topology to the USC model generator which will
(using idealized computations that may or may not adequately reflect your
real life plan) generate such a model as to place the nodes at
Hi Paul!
Paul Stickney wrote:
Sorry, I misunderstood the meaning of RSSI values. So if I'm bringing 1 mote
far away and it must increase it's transmission power to maximum, than after
some distance I can't distinguish any more between distance changes, however
the packets are well
Hi Miklos!
Please use the RF230 datasheet for the exact meaning of the measured
ED_LEVEL. Minimum value is 0 = less than -91 dBm, maximum value is 84,
one unit corresponds to 1 dB, typical accuracy: +-5 dB which should be
a constant calibration error. You cannot reliably calculate the
- i've read that on real hardware, the RSSI must a be positive value...
RSSI is like speed. Are you measuring in mph or km/h or some system that
starts at negative one million units...
0dB is 1mW what of uniform power distribution. This is the maximum output
for a telosb with an idealized
Just to make sure, you are using the latest FTDI driver and, all previous
versions of the drive have been uninstalled?
I could be wrong, but I believe that error is coming from WITHIN the serial
bridge provided by the FTDI and not the TinyOS tool-chain itself.
HTH,
Paul
Even without steps, RSSI-for-localization is fickle at best.
It should still be usable to show the general concept of performing
localization based on decreasing signal strengths over distance and various
means of triangulation.
(And from the reading differences I was running into just from slight
I am developing an schema of having users compiling locally (no motes
plugged) and a local application submitting the image code to a server
physically connected to the motes. Some of this idea I had already developed
and tested, but now I have a problem that seems to be simple, but I didn't
find
Look at tos-set-symbols.
It's part of the normal compilation stage during installation.
You can use it independently, though.
HTH,
Paul
On Wed, Jun 25, 2008 at 11:45 AM, Agnelo Silva [EMAIL PROTECTED] wrote:
I am developing an schema of having users compiling locally (no motes
plugged) and a
I have managed to separate the final download command out of
the makefile morass for tmotes. This takes place _after_ the
moteid is set in the hex file and an intermediate file is made.
I explicitly generate that intermediate and send it to my client
for direct download of updates. The client then
Hi all,
I have to make msp430 inside Trio mote to sleep. I saw in TinyOS 2.x,
there is module like chip/msp430/MCUSleep.nc But I have to use TinyOS
1.15.
Can anybody please help me out?
Thanks,
Deb
___
Tinyos-help mailing list
Hi!
I have the same IRIS platform (and also MicaZ). On Linux I have the
latest nesC from Ubuntu repository and the latest CVS tinyos-2.x.
There are only few minor errors when I compile TestTymo either for IRIS
or for MicaZ. It is still possible to compile and use TestTymo for
TOSSIM. I can
Hello All
Thanks to Andrey and Chris for getting me started on the digital IO ports.
I know that the SHT15 does not use the I2C bus so how is it accessed?
I've looked at the SHT11 code for the telosb, and telosa, platforms but
there is some processor specific code in it so it does not seem to
Hi,
When I am following the java file on lesson 8 in the tutorial and run java
net.tinyos.tools.BcastInject group_id start_sensing num_samples
interval. An Exception appears as follow:Can anyone give me an answer on
it?Thanks in advance.
$ java BcastInject
Exception in thread main
Janos, thank you!
It was my lack of knowledge. I've renamed volumes-stm25p.xml to
volumes-at45db.xml that seems to be used by IRIS and MicaZ.
It is successfully compiled (with some warnings).
Andrey
Janos Sallai wrote:
Andrey,
The error message says that you're missing the
I am just curious: Can someone kindly tell me the pros and cons of Mantis OS
(MOS) as opposed to Tiny OS?
http://mantis.cs.colorado.edu/index.php/tiki-index.php
Can MOS run on micaz motes?
And since I have your attention, can 6LowPAN be integrated with TinyOS?
---
Dr. Saikat Ray
Assistant
Hi Charles!
Thanks to Andrey and Chris for getting me started on the digital IO ports.
The main appreciates are going to Chris, I was only casual quick to
point to the wanted posted message here :)
I know that the SHT15 does not use the I2C bus so how is it accessed?
I've looked at the
Hello,
You don't need to upload the contents of the java folder to the mote, only
the apps on the SendingMote and InterceptBase. The java folder has the app
you have to run on the pc, and you are supposed to make it with the command
*make* only, not *make mica2*. Is maybe that your problem?
I am actually *SURE* that the value was stable since I measured it on the
oscilloscope and saw no artifacts. Also, the accelerometer's power comes
from an I2C chip which is not affected by the microcontroller reset, and I
turned it on before reseting the mote. It is hard trying with another
Hi xiaowei,
Do you have
export CLASSPATH=$TOSROOT/support/sdk/java/tinyos.jar:.
?
Andrey
xiaowei wrote:
Hi,
When I am following the java file on lesson 8 in the tutorial and run java
net.tinyos.tools.BcastInject group_id start_sensing num_samples
interval. An Exception appears as
Hi, Andrey,
Yes. The error now is
[EMAIL PROTECTED] /opt/tinyos-1.x
$ export CLASSPATH=$TOSROOT/support/sdk/java/tinyos.jar
[EMAIL PROTECTED] /opt/tinyos-1.x
$ java net.tinyos.tools.BcastInjet 1 start_sensing 5 1
Exception in thread main java.lang.NoClassDefFoundError:
Hi Xiaowei,
So it was not before?
Than check also:
export TOSROOT=/opt/tinyos-1.x
And than one more:
export CLASSPATH=$TOSROOT/support/sdk/java/tinyos.jar:.
Don't forget colon and dot at the end of the last line.
Andrey
xiaowei wrote:
Hi, Andrey,
Yes. The error now is
[EMAIL
The RSSI demo program is a fairly simple program. The SendingMote
sends an empty packet which is recieved by the basestation which is
connected to your PC whose job is to fill this empty packet with the
RSSI of the packet and transfer it to the PC.
The java program is runs a thread on your PC,
Quick update,
I resolved the issue by modifying
/opt/tinyos-1.x/tools/src/motelist/motelist-win32.cpp
I replaced all occurrences of 6001 with 6010 but I am unsure what the
consequences are (if any) by doing this. After rebuilding and copying the
binary to /opt/oasis/bin/ I can now
Hi Agnelo,
Once you have compiled with 'make micaz', you can do the following in
the /app/build/micaz:
tos-set-symbols main.exe main.exe-3 TOS_NODE_ID=3
ActiveMessageAddressC\$addr=3
This will set the TOS_NODE_ID to be 3 and then you can install the
'main.exe-3' file to your mote and it
I'm just kibbitzing so nothing is necessary.
If a close reading of the ADC code reveals no
first sample timing issues, then I'm out of ideas
so tossing the first reading is my (second) best solution...
MS
Dimas Abreu Dutra wrote:
I am actually *SURE* that the value was stable since I measured
Hi, Andrey,
Still get the same error. Don't know why. :(
Xiaowei
On 6/25/08, Andrey Gursky [EMAIL PROTECTED] wrote:
Hi Xiaowei,
So it was not before?
Than check also:
export TOSROOT=/opt/tinyos-1.x
And than one more:
export CLASSPATH=$TOSROOT/support/sdk/java/tinyos.jar:.
Don't
is it not supposed to be BcastInject
^
or was that a mis-typed message?
MS
xiaowei wrote:
Hi, Andrey,
Yes. The error now is
[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] /opt/tinyos-1.x
$ export CLASSPATH=$TOSROOT/support/sdk/java/tinyos.jar
[EMAIL
Sorry for the mis-typed in the error message, it should be BcastInject in
the error message
$ java net.tinyos.tools.BcastInject 1 read_log 2
Exception in thread main java.lang.NoClassDefFoundError:
net/tinyos/tools/BcastInject
Xiaowei
On 6/25/08, Michael Schippling [EMAIL PROTECTED] wrote:
is
Hi Charles,
No problem for the digital IO ports.
As for the SHT15, it too uses a two-wire-interface. But its TWI is not
compatible with I2C so you will have to control the pins directly by using the
tos.chips.atm128.pins.HplAtm128GeneralIOC and
tos.chips.atm128.pins.HplAtm128InterruptC
When I talk about RSSI I talk about the values found in a file like the
meyer-heavy.txt file. So, I suppose I must say noise floor instead of RSSI?
RSSI standard for Relative Signal Strength. -50 dBm is a SPECIFIC decibel value.
So you can have an RSSI value of -50dBm.
You can also have a
I've read in the forum that there are three main values for signal
quality (tinyos, tossim 2.x) :
- the power which traduce the signal power (i've read in tossim the
power is set up to 0 dB and then it is equal to gain value entered)
Correct. Signal power (in dBm) at the receiver is
When I talk about RSSI I talk about the values found in a file like the
meyer-heavy.txt file. So, I suppose I must say noise floor instead of
RSSI?
RSSI standard for Relative Signal Strength. -50 dBm is a SPECIFIC decibel
value.
So you can have an RSSI value of -50dBm.
You can also have a
That is (I think) definitely the error you get when the
specified top-level class is not in your CLASSPATH.
You show your CP being set with TOSROOT, however if you
are on Widows, Java does not grok cygwin /opt paths.
If your TOSROOT is /opt or some such it won't get it.
Try using the explicit
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