Hi,
As MS already said, the resistance of the mote will vary based on the
tasks being executed on the mote. If you need to estimate the current
drawn by a mote and the remaining power in the batteries, then probably
the best approach is to use a fuel gauge like the DS2770 as suggested in
an
Hi all,
I am trying to make a location in a network of sensors.
And I would like a mote determine the value of RSSI over another mote of
the network, and then the first mote sending this value to the BaseStation.
Does anyone know how I can to do this ? Anys ideas or advices are welcome!
Thank
Hello,
I fixed the problem :) as follow:
I increased the value of bandwidth.
mac(): return the object representing the media access layer
mac = t.mac()
mac.setSymbolsPerSec(655360)
Best regards,
**
Omar Cheikhrouhou
Engineer Researcher @SENS Lab
Hi all,
if I had a uint16_t key variable, and if I divide this variable by
(uint_8) 2 so in which type will be the result? uint8_t?
In more detail
let's say that key = 256; and I had uint16_t result variable
so which will be the value of result if I execute something like that result
= key/2;
Hi folks,
I use tmote sky, I have to write drivers for a 3-axis magnetic compass
that a wont include in a sensorboard to connect at mote throught the
expantion connector.
My problem is that the sensor I found for my scope use the I2C bus
protocol. I know that the mote connecor's pin 8 and 6
With a global variable ?
if(!busy) { ...
In the sendDone event = busy = FALSE; ?
tutorial at http://docs.tinyos.net/index.php/Mote-mote_radio_communication
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Hi,
In TinysOS there's only integer type to get calculation results. I think
because of microcontroller/CPU coercions.
But I would like to know if there is a precision during the calculation, I
mean if I do (1/4) * 100 (using brackets to obtain 0.25 before the
multiplication), will I obtain 25 or
Hi,
In TinysOS there's only integer type to get calculation results. I think
because of microcontroller/CPU coercions.
But I would like to know if there is a precision during the calculation, I
mean if I do (1/4) * 100 (using brackets to obtain 0.25 before the
multiplication), will I obtain 25 or
2009/6/8 Rémi Villé ville.r...@gmail.com
Hi,
In TinysOS there's only integer type to get calculation results. I think
because of microcontroller/CPU coercions.
But I would like to know if there is a precision during the calculation, I
mean if I do (1/4) * 100 (using brackets to obtain 0.25
I tried with: export CLASSPATH=$TOSROOT/support/sdk/java/:$TOSROOT/
support/sdk/java/tinyos.jar:.:$CLASSPATH
It won't work either.
tos-check-env shows:
Classpath:
/opt/tinyos-2.x/support/sdk/java/
/opt/tinyos-2.x/support/sdk/java/tinyos.jar
.
By the way do I have to do
Hi Alfred,
Getting the compiler to use the precision I needed has posed quite some
problems. In general, the compiler should use the largest integer type
of the operands for performing the operation. If key is defined as
uint16_t, then the calculation should be done in 16-bits (independent of
Hello everyone...
I am working on a tracking and localization project.
I have tested the tinyviz application as given in the tutorial.
I was just wondering whether we can simulate a moving object along with the
fixed nodes(considering a static environment) in TinyViz?
Any pointers or help would
Hi,
See page 14 in the datasheet:
http://focus.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=cc2420fileType=pdf
In the lowest-power transmit mode (-25dBm) the current draw is 8.5mA.
Note, however, that prior to sending the message, the default radio
stack implementation in TinyOS
Hi,
according to the recommendations of Brano I have made HilTimer32khzC and
then I have modify TimeSyncC so as to get 32khz timestamping precision. But
I'm getting results that are so similar to what I got with TMilli precision.
If I change the constant ENTRY_THROWOUT_LIMIT I get better results
Read the paper,
Remaining Capacity Measurement and Analysis of Alkaline Batteries for Wireless
Sensor Nodes
Adriano B. da Cunha, Breno R. de Almeida, and Diógenes C. da Silva, Jr.,
Member, IEEE
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL. 58, NO. 6, JUNE 2009
*
Hello Rémi,
when I plug the devide in dmesg i have the following:
[ 1118.163457] usb 1-2: new full speed USB device using uhci_hcd and address
2
[ 1118.367624] usb 1-2: configuration #1 chosen from 1 choice
[ 1136.636678] /build/buildd/linux-2.6.24/drivers/hid/usbhid/hid-core.c:
Hi,
I am currently unsure of how to control the USB TX LED for Tmote Sky.
This is the red LED that is located on the left side of the USB port in the
tmote sky. This LED blinks whenever there is a TX in the USART0, when set to
UART mode.
I am calling a HPLUART.put() function, which enables the
Hy,
I need help. I want to capture a digital output from 6-pin expansion
connector (U28) of my Telosb (with MSP430 f1611 processor). I would
like this digital signal had a duty cycle set by me: I want to expose
it to an hardware component
to control the switching on and the switching off of an
It exists and contains:
Crc.class
Crc.java
DiagMsg.java
Dump.java
Env.java
Makefile
Messenger.java
package.html
PrintStreamMessenger.java
Just in case: /support/sdk/java contains:
build.xml
Makefile
Makefile.include
/net
tinyos.jar
Ideas?
I don't think you need to reinstall the tools when
Hello,
I am trying to remove to CRC bytes off of the TinyOS packages. Is there a
specific file that encodes the addition of the CRC?
Thanks!
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I'm a little confused. I think you want to use a pin in output mode
to switch something else on and off? Or do you want to capture
(read) the value of an input pin?
In either case, for low speeds and resolutions -- say 10ms -- GeneralIO
with a Timer is probably the easy solution. Look at the
I think those LEDs are attached directly to the USB transceiver and
are not under direct processor control. TX may only blink when a real
USB message is being sent. I don't know if just putting bytes to the
port is sufficient.
MS
Jun Han wrote:
Hi,
I am currently unsure of how to control
Using fractions in integer arithmetic is a non-starter...
specifically (1/4) * 100 will give you 0 because 1 divided
by 4 in integer is 0. Although 0.25 * 100 would probably
force a floating point operation resulting in 25.0 which
would then be truncated to 25 if assigned to an integer.
In that
On May 26, 2009, at 1:57 AM, Alfred NOBEL wrote:
Dear tinyos users,
Calling PacketAcknowledgements.requestAck to My msg, does it enable
automatic retransmission when wasAcked command returns FALSE?
No, it doesn't.
This is in part because different protocols want to respond
differently to
On May 29, 2009, at 5:53 AM, Rémi Villé wrote:
Hi,
In the topology file of TOSSIM we can see that we can choose a gain
for a link from a node A to a node B and a different one for the
link from B to A, so it may imply that, in real world, we have
different gain from a mote A to a
Hi All
I have been able to use the ReadStream to sample microphone through the ADC
using an MTS310 sensorboard and MICA2 motes.
I wanted to know what is the maximum sampling I can get using ReadStream ..
this interface from my knowledge is similar to the getcontinousdata
interface of T1 and thus
Can you show me your makefile?
Kevin
On Tue, Jun 2, 2009 at 6:06 AM, Vincent Gayvincen...@gmail.com wrote:
Hi,
I'm trying to use printf in the application 'RadioCountToLeds' running on
top of tinyOS-2.0.2. I have some problems with wiring interfaces of printf.
I have modified
No wait, I see it, you need to include interface SplitControl as
PrintfControl not just PrintfControl as the interface. You also need
to change the semantics of the Packet.getPayload() command to conform
to the way it used to be in TinyOS 2.0.2. Its slightly different in
2.1
Kevin
On Mon, Jun
Using the same hardware (mica2 + mts310) we got 14 khz sampling rate
with T1. Miklos
On Mon, Jun 8, 2009 at 7:45 PM, Akankshu Dhawanakank...@gmail.com wrote:
Hi All
I have been able to use the ReadStream to sample microphone through the ADC
using an MTS310 sensorboard and MICA2 motes.
I
Hi,
I'd like evaluate the performance of my project based on Telosb and TinyOS
(measure of time, consumption, RSSI, gain (dB) ).
Can one help me? Ho can I do to obtain this values?
Thanks in advance __
BOUZAYANI Walid
Student Researcher
CES Laboratory, ENIS Tunisia
Hi,
there is a recent thread on this mailing list about the power consumption of
motes. It seemed to me quite clear, could you check it out?
As for the execution time, you could use the interface LocalTime and wire it
to
LocalTimeMilliC *** FOR MILLI SEC PRECISION *** or
Counter32khz32C ***
Hello,
I want to create this topology and then store this routing information in
every node. I need to send data from node 2 to all other nodes based on least
hop count. I want to check for the least hop count in the routing table of
node2 and send data to nodes with hop count of 1 and then
Thank you R. Gravina,
Sorry, I didn't understand you response about power consumption. Please can you
clarify more?
What about the RSSI , Average Reception Ratio, and Wireless Transmission Delay
(sec) measurement?
have you any idea ? How can i measure them ?
Thank you very much
The following link it's the beginning of a thread about power consumption
measurement. I guess it will be a goos kick off for you:
http://mail.millennium.berkeley.edu/pipermail/tinyos-help/2009-May/040104.html
http://mail.millennium.berkeley.edu/pipermail/tinyos-help/2009-May/040104.html
I'm sorry
-- Forwarded message --
From: Nahr Elk nahr...@gmail.com
Date: 2009/6/8
Subject: pc - node communication
To: tinyos-help tinyos-help@millennium.berkeley.edu
Hi all!
I am trying to send some messages in order to 4 motes [n°1, n°2 , n°3 and
n°4] connected to my pc.
I send the
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