[Tinyos-help] LPL + Packet Link Layer

2008-04-13 Thread Juan Antonio López Riquelme
Hello I think if it is logical to use LPL and PacketLink interface at the same time. As far as I know right now, using only LPL the message will be sent several times during the set time in the command setRxSleepInterval. In execution, what is the difference using the following two code

[Tinyos-help] LPL + Packet Link Layer

2008-04-13 Thread Juan Antonio López Riquelme
I am sorry, I forgot to put the code: 1) call PacketLink.setRetries(PaqueteDatos, 10); call PacketLink.setRetryDelay(PaqueteDatos, 100); call

[Tinyos-help] More accurate RSSI values

2008-04-13 Thread Eli Gotesman
Hi, I'm working on an application that implements a localization algorithm that uses RSSI values to determine the distance. I did a little experiment to see the average value of RSSI for different distances, and the resolution of the average values that I got isn't good enough for me. Is there a

Re: [Tinyos-help] More accurate RSSI values

2008-04-13 Thread Ittipong Khemapech
In my opinion, the RSSI readings are quite susceptible to various environmental conditions. Conducting more runs may help. How many runs per distance have you done? I think you may compute the median and compared it to the average. Ittipong On 13/04/2008, Eli Gotesman [EMAIL PROTECTED] wrote:

[Tinyos-help] what's the problem with attribute ((packed))

2008-04-13 Thread fatima zohra
hello, while reading the TinyOS programmation manual herehttp://www.tinyos.net/tinyos-2.x/doc/pdf/tinyos-programming.pdf, i came across this important Hint : *Programming Hint 14: Never, ever use the packed attribute.* can anyone explain to me why is it so important to notice this problem ?? is

Re: [Tinyos-help] TinyOS help

2008-04-13 Thread Ittipong Khemapech
Please send any emails to the list instead of me. The main reason is some people there may help you faster and better than I do. The most important one is today is Sunday :-) Ittipong On 13/04/2008, basem aljedai [EMAIL PROTECTED] wrote: HI lttipong , Thanks a lot for your help , I have done

[Tinyos-help] Fwd: TinyOS help

2008-04-13 Thread basem aljedai
-- Forwarded message -- From: basem aljedai [EMAIL PROTECTED] Date: Sun, Apr 13, 2008 at 5:15 PM Subject: Re: [Tinyos-help] TinyOS help To: Ittipong Khemapech [EMAIL PROTECTED] HI lttipong , Thanks a lot for your help , I have done what you side to mukesh and my code have

Re: [Tinyos-help] More accurate RSSI values

2008-04-13 Thread shankar satish
You mean the RSSI values will vary if the environment varies? In that case, conducting experiments in a typical indoor environment where not too many people are walking around will show consistent RSSI values? -Regards, Shankar. On Sun, Apr 13, 2008 at 3:09 PM, Ittipong Khemapech [EMAIL

Re: [Tinyos-help] Fwd: TinyOS help

2008-04-13 Thread Ittipong Khemapech
RssiMsg* rssiStruct = (RssiMsg) (payload); // here error : conversion to non-scalar type requested RssiMsg* rssiStruct = (RssiMsg*) (payload); uartQueue[uartIn] = rssiStruct - rssi; // here warning: assignment makes pointer from integer without a cast From my experience, I have nothing done

Re: [Tinyos-help] More accurate RSSI values

2008-04-13 Thread Ittipong Khemapech
I can't 100% say that. An indoor environment may have several sources affecting signal propagation and attenuation behaviours. Ittipong On 13/04/2008, shankar satish [EMAIL PROTECTED] wrote: You mean the RSSI values will vary if the environment varies? In that case, conducting experiments in

[Tinyos-help] is it true?

2008-04-13 Thread funofnet Funofnet
Hi, Please I whould like to know if I had truly undestand : basically CC2420radio stack uses CSMA to acces to the channel but if we active Low Power Listening then it uses TDMA . Is it true? Best regards, Fun _

Re: [Tinyos-help] More accurate RSSI values

2008-04-13 Thread shankar satish
Could you point out any study/paper that describes these effects? -Regards, Shankar. On Sun, Apr 13, 2008 at 4:17 PM, Ittipong Khemapech [EMAIL PROTECTED] wrote: I can't 100% say that. An indoor environment may have several sources affecting signal propagation and attenuation behaviours.

Re: [Tinyos-help] More accurate RSSI values

2008-04-13 Thread Ittipong Khemapech
As I'm quite busy with my research, you should google by yourself. Ittipong On 13/04/2008, shankar satish [EMAIL PROTECTED] wrote: Could you point out any study/paper that describes these effects? -Regards, Shankar. On Sun, Apr 13, 2008 at 4:17 PM, Ittipong Khemapech [EMAIL PROTECTED]

[Tinyos-help] TinyOS2.0 Installation help

2008-04-13 Thread Xi
Hi All: I installed TinyOS 2.0 to cygwin. When I tried to check the environment with tos-check-env. I got error message as following: -- WARNING: No flex in current path. -- WARNING: No bison in current path. And I tried to ignore it and compile Blink by make micaz sim. I got error message as

[Tinyos-help] change a jave file in oscilloscope to show Celsius

2008-04-13 Thread miriam herraiz
Hi, I am using oscilloscope but I changed it because I only want to show one channel (temperature). In the oscope graph the scale is not in Celsius, so I want to introduce this formulae: temperature = -39.60 + 0.01 * SOt where SOt is the raw output of the sensor so my question is in what file of

[Tinyos-help] [tinyos-help]routing algorithm

2008-04-13 Thread dima .
hello all,plz i need help1-i need to know which routing should i use?i specifically want to know if i should use multihop,mintroute,multihopLQI??i need to know if i can use the Multihop Implemented in tinyos to change into any Rounting algorithm ( going from one node to -another one to

[Tinyos-help] UART

2008-04-13 Thread olly yuen
Hi, I am a college student and I am new to TinyOS. I am current using version 2.x of TinyOS. I wrote a program which sends radio packets from one telosb mote to another. However, the second part of my project is to forward the received packet to another microcontroller through UART. I read

[Tinyos-help] Collection Low Power

2008-04-13 Thread John Frye
Hello, I have several motes collecting data and communicating through the provided collection and dissemination protocol implementations in the net library. However, the battery life on these motes is quite poor; they only last for around a week and half. I attempted to implement low power

Re: [Tinyos-help] change a jave file in oscilloscope to show Celsius

2008-04-13 Thread Eric Keller
there really is no point in changing anything but the scale on the 'scope. I have never read through the code enough to know where that is. Eric On Sun, Apr 13, 2008 at 3:33 PM, miriam herraiz [EMAIL PROTECTED] wrote: Hi, I am using oscilloscope but I changed it because I only want to show

Re: [Tinyos-help] Collection Low Power

2008-04-13 Thread Philip Levis
On Apr 13, 2008, at 3:13 PM, John Frye wrote: Hello, I have several motes collecting data and communicating through the provided collection and dissemination protocol implementations in the net library. However, the battery life on these motes is quite poor; they only last for around

Re: [Tinyos-help] Replacing nesCC 1.2.x with 1.3.0 in Xubuntos

2008-04-13 Thread John Regehr
Also if I recall correctly nesC 1.3 and TOSSIM are known to not play well together at the moment. So probably this is not the time to upgrade that tool. John On Sun, 13 Apr 2008, Kevin Klues wrote: If you are using nesC to compile a TinyOS applicaiton. Updating to 1.3.0 will also require

Re: [Tinyos-help] UART

2008-04-13 Thread Juan Antonio López Riquelme
Hello Oliver I think that TEP 117 http://www.tinyos.net/tinyos-2.x/doc/html/tep117.html (section 3.3) can help you. A greeting, Juan Antonio. - Original Message - From: olly yuen To: tinyos-help@millennium.berkeley.edu Sent: Sunday, April 13, 2008 11:09 PM Subject:

[Tinyos-help] Problem with XubunTOS installer

2008-04-13 Thread Ahren Reed
Hi, I am trying to do the One-Step Install With a Live CD. I downloaded the XubunTOS disk image from the Toilers page: http://toilers.mines.edu/Public/XubunTOS The disk image starts up fine, but the Install program gets stuck in a loop on part 4 of 7, which is, Prepare Disk Space.

Re: [Tinyos-help] what's the problem with attribute ((packed))

2008-04-13 Thread Philip Levis
On Apr 13, 2008, at 7:32 AM, fatima zohra wrote: hello, while reading the TinyOS programmation manual here, i came across this important Hint : Programming Hint 14: Never, ever use the packed attribute. can anyone explain to me why is it so important to notice this problem ?? is it a

Re: [Tinyos-help] gathering data

2008-04-13 Thread Philip Levis
On Apr 12, 2008, at 11:45 AM, Nahr ... wrote: Hello, Please how could I gather data with Tossim2 to plot graphs (LQI PRR) (RSSI PRR) like in this article: http://csl.stanford.edu/~pal/pubs/emnets06.pdf You can't; those are from real networks. If you were to gather such data from