Adam Hunt | 20 Apr 06:13 2014
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Modbus/RTU master for Contiki

Has anyone implemented a RS485 Modbus/RTU master in Contiki?

I am attempting to connect a few Aruino-like Modbus slave boards to a Contiki device to keep my costs down while I experiment. Eventually I'd like to get rid of the slave devices and implement everything as a 802.15.4 device but my finances don't currently allow for this. Also, for my purposes it's not imperative that every device be standalone at the moment.

Thanks.
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Pei Zhang | 20 Apr 05:42 2014
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Call for Papers: ExtremeCom 2014 - The Galápagos Expedition (due in 2 weeks)

Dear Colleagues, 
I would like to bring your attention at the ExtremeCom 2014 submission deadline of
May 4th, 2014

******************************************************************

CALL FOR PAPERS AND DEMOS

Extreme Conference on Communication and Computing - The Galápagos Expedition

ExtremeCom 2014

11-16 August, Galápagos Islands, Ecuador

<http://www.extremecom.org/http://www.extremecom.org/

******************************************************************

Important dates

--------------- ----

Submission deadline: May 4, 2014

Notification of acceptance: May 26, 2014

Early registration deadline: June 7, 2014

Registration deadline: June 15, 2014

Conference dates: August 11-16, 2014 (tentative dates)

******************************************

Scope

-------

The Extreme Conference on Communication and Computing (ExtremeCom) brings
together researchers and practitioners in areas related to communications in
rural, remote or other extreme environments, and computing in extreme
operating conditions such as extreme temperatures and energy constraints,
extreme quantities ("big data"), extremely large-scale systems, and extreme
levels of threat and uncertainty, in order to gain experience and insight
into the challenges that such environments pose for the network and the
users.



We welcome a broad range of topics concerning both technical and economical
aspects, for example wireless communication, mobile computing, low power
devices and protocols, delay tolerant networks and other networking
paradigms, distributed computing paradigms, big data, distributed systems,
cloud computing, business and services models, user experiences and web
applications. Researches addressing computing challenges in general mobile
environments (even not completely extreme) are also welcomed by the
conference.



Following on from the success of ExtremeCom 2009 - The Midnight Sun
Expedition in Laponia, Sweden, ExtremeCom 2010 - The Himalayan Expedition in
Dharamsala, India, ExtremeCom 2011 - The Amazon Expedition in Manaus,
Brazil, ExtremeCom 2012 - The Swiss Alps Winter Expedition in Zurich,
Switzerland, and ExtremeCom 2013 - The Volcanic Expedition in the
Eyjafjallajökull Volcano region in Iceland, we present the ExtremeCom 2014
edition: The Galápagos Expedition. The conference will start with 3 days of
excursions in the amazing nature of the Galápagos Islands. Along the way,
participants will get to see and experience the islands and their plant and
animal life, both above and beneath the surface of the ocean. The immersion
will not only give a better idea of both the technical and user requirements
of such a harsh environment, but it will also give many opportunities for
informal research discussions between the participants. Participants that
have their own software for scenarios like this will also, to as great an
extent as possible, be encouraged to test and demonstrate it within this
environment. After the excursions, there will be two days of paper
presentations and demos. Focus will still be on informal research
discussions, with the hope that the field experience will give participants
the ability to discuss the topics in a new light.

*****************

Submission Guidelines

---------------------------

Participants should submit 6 page papers about ideas and visions about the
topics of the conference or demo proposals to be shown during the
conference. Visionary and thought-provoking papers that are likely to
generate much discussion during the conference are especially solicited. The
aim of the conference is to maintain an informal environment, where new
research ideas can be discussed and developed. We also hope to have a demo
session where participants can show their implementations and systems. If
you want to show a demo, please submit a 2 page demo proposal using the same
submission system as for conference papers. Accepted papers will be
published in the ACM Digital Library. A selected set of top submissions will
be fast-tracked to a special issue in a reputed SCI/E journal.



We only accept PDF files, no greater than 6 pages in length (2 pages for the
demos), including text, figures and references. Manuscripts should use the
ACM templates (for LaTeX, please use Option 2 files), with 9pt fonts.



Topics for the conference include, but are not limited to:



Testbeds for large-scale sustainable testing of moobile communication
systems

Real deployments of networks in extreme environments

Business and service models for networks in rural, remote, and other
challenging environments

Delay tolerant networking

User experience research

Big data research such as mining and modeling of mobility and social network

Cloud computing for extreme scalability

Mesh networks and sensor networks

Low-power and intermittent-power protocols

Mechanisms for emergency and urgent communications

Distributed computing for mobile environments

Networked applications and services

Operating system and middleware support for mobile computing and networking

Security, privacy, and trustworthiness of extreme communications

Underwater networking

Robotic communications and mobile augmented reality



Due to logistics, the number of participants will be limited. Priority will
be given to authors of papers and those who register first.

****************************************************************************
*

Organizers

---------------

General co-chairs:

Pan Hui, HKUST, Hong Kong / T-Labs, Germany

Anders Lindgren, SICS Swedish ICT, Sweden

Local conference operations chair:

Carlos Herrera, Escuela Politécnica Nacional, Ecuador

TPC vice-chairs:

Jorge Sá Silva, University of Coimbra, Portugal

Pei Zhang, Carnegie Mellon University, USA

Sponsorship co-chairs:

Filipe Mota Pinto, Instituto Politécnica Leiria, Portugal

Carlos Egas, Escuela Politécnica Nacional, Ecuador

Publicity chair:

Fernando Ramos, University of Lisbon, Portugal

Web chair:

Fehmi Ben Abdesslem, SICS Swedish ICT, Sweden



Technical Program Committee:

Yahel Ben-David, University of California - Berkeley, USA

Fernando Boavida, University of Coimbra, Portugal

Elwyn Davies, Folly Consulting, UK

Michael Doering, Bosch Research, Germany

Stephen Farrell, Trinity College Dublin, Ireland

Marco Fiore, INSA Lyon/INRIA, France

Roy Friedman, Technion - Israel Institute of Technology, Israel

Paulo Gil, University of New Lisbon, Portugal

Sumi Helal, University of Florida, USA

Bob Iannucci, Carnegie Mellon University SV, USA

Christine Julien, University of Texas at Austin, USA

Trevor Pering, Google, USA

James Kwok, Hong Kong University of Science and Technology, Hong Kong

Franck Legendre, Uepaa AG, Switzerland

Marimuthu Palaniswami, Univ. Melbourne, Australia

André Rodrigues, University of Coimbra, Portugal

Joel Rodrigues, University of Beira Interior, Portugal

Anthony Rowe, Carnegie Mellon University, USA

Milan Simek, University of Brno, Czech Republic Jörg Ott, Aalto University,
Finland

Kevin I-Kai Wang, Univ. Auckland, New Zealand

Klaus Wehrle, RWTH Aachen University, Germany

Lars Wolf, TU Braunschweig, Germany

Lin Zhang, University of Tsinghua, China



Steering Committee:

Jon Crowcroft, University of Cambridge, UK

Avri Doria, Luleå University of Technology, Sweden

Tristan Henderson, University of St. Andrews, UK

Pan Hui, HKUST, Hong Kong / T-Labs, Germany

Anders Lindgren, SICS Swedish ICT, Sweden

****************************************************************************
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Pei Zhang | 20 Apr 05:23 2014
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MobiQuitous 2014 2nd Call for Papers

Dear Colleagues, I would like to bring your attention to the CFP for Mobiquitous 2014. Please note the Abstract deadline is August 1st

Please note the corrected page limit of 10 pages

=====================================================
CALL FOR PAPERS

***MobiQuitous 2014: 11th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services
    [In-cooperation with ACM SIGAPP & SIGBED]
December 2-5 December 2014
London, UK
http://mobiquitous.org

=====================================================

The Eleventh Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous 2014) will provide a forum for practitioners and researchers from diverse backgrounds to interact and exchange experiences about the design and implementation of mobile and ubiquitous systems. Areas addressed by the conference include systems, applications, social networks, middleware, networking, data management and services, all with special focus on mobility and ubiquitous computing.

=====================================================
Topics of Interest:
=====================================================

We solicit technical papers describing original, previously unpublished research, not currently under review by another conference or journal. Submissions should clearly identify how they relate to issues on mobile and ubiquitous systems. Contributions describing an overall working system and reporting real world deployment experiences are particularly of interest.
 
Topics include, but are not limited to, the following:
Wireless Access Technologies
Networked Sensing, and Applications
Mobile Device Architectures
Mobile Systems and Applications
Mobile Data Management and Analytics
Mobile Multimedia
Mobile User Interfaces and Interaction Technologies
Mobile User Experience
Toolkit, and Languages for Mobile Computing
Energy Aware Mobile Computing
Mobile Cloud Computing
Semantic Web Technologies
Localization and Tracking
Internet of Things – Systems, Data Analytics, and Applications
Crowdsourcing: - Platforms and Applications
Participatory Sensing
Social Network Applications to Mobile Computing
Context and Location Aware Applications and Services
Wearable Computing
Body Area Networks
Security and Privacy
 
=====================================================
Publication Guidelines:
=====================================================

The international technical program committee will rigorously review all submitted papers and ACM Digital Library will publish the accepted papers.  Submitted papers for review must not exceed 10 pages and should be in PDF and formatted in the ACM Double Column format. Detailed format and submission instructions including style templates for MS Word and LaTex are provided at the conference website
 
=====================================================
Important dates: 
=====================================================

Submission Abstract Deadline: August 1, 2014
Submission Paper Deadline: August 8, 2014
Acceptance Notification: September 26, 2014
Camera-Ready Version: October 24th, 2014

------------------------------
Pei Zhang
Associate Research Professor
Cylab & ECE & INI & SV
Carnegie Mellon University
http://www.ece.cmu.edu/~peizhang/
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Elnaz Rezaei | 20 Apr 01:08 2014
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How to test PowerTracker's measurements?

Hi,

I need to measure the energy consumption in different scenarios. Although I expect to see different energy consumptions theoretically, the measurement are almost equal. I tried to test every part of my code. Now, I want to make sure that I have used the powertracker correctly.   Is the following approach correct?

I have added the

APPS+=powertrace

in the Makefile and

powertrace_start(CLOCK_SECOND * 2);

in the client file after PROCESS_BEGIN();.

I have run the simulation for an hour. Then I  compute the total time of mote in transceiver and cpu-active modes and I do find the energy consumptions. But the numbers do not make sense. Am I using the PowerTracker correctly?

I get stock on that. Your help is really appreciated.

--
Thanks,
Elnaz
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DEVESH PARMAR | 18 Apr 13:00 2014
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Compiling rest-server-example for cc2530dk

Hello Guys,
                   I am trying to compile rest-server-example for my platform which having cc2530dk core, so its giving following error,

  CC        ../../apps/rest-coap/coap-
common.c
../../apps/rest-coap/coap-common.c:69: syntax error: token -> 'uint16_t' ; column 10
../../apps/rest-coap/coap-common.c:89: syntax error: token -> 'int' ; column 7
../../apps/rest-coap/coap-common.c:72: error 20: Undefined identifier 'temp'
../../apps/rest-coap/coap-common.c:72: error 20: Undefined identifier 'temp'
../../apps/rest-coap/coap-common.c:90: error 20: Undefined identifier 'i'
../../apps/rest-coap/coap-common.c:90: error 20: Undefined identifier 'i'
make: *** [obj_cc2530dk/coap-common.rel] Error 1

So why these errors are coming and what changes i need to do to get rid of them.

Thanks

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Jon martin | 17 Apr 23:19 2014
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Mc1322x RX_ON TX_ON not working with IPv6/UDP communication

I am trying to use an amp with my antenna. I am using a MC1322x so if set correct chip should handle the rest. 

I set up the TX_ON and RX_ON with following code

    /* sets up tx_on, should be a board specific item */
        *GPIO_FUNC_SEL2 = (0x01 << ((44-16*2)*2));
gpio_pad_dir_set( 1ULL << 44 );


// rx on 
GPIO->FUNC_SEL.GPIO_45 = 2;
gpio_pad_dir_set( 1ull << 45);
GPIO->DATA_SET.GPIO_45 = 1;

set_power(0x12);

The way i do communication is using UDP. When trying to communicate like this i see no pull up on the TX_ON, which i should see every transmit. I can ping6 with same code on chip and while pinging i can see the TX_ON being pulled up for transmit. Also when i use tx_packet(p); which is in maca.c the TX_ON works properly.

It seems to only be when i am using the UIP UDP to communicate that the TX_ON is not working properly.

I did a debug and tried to find if at any point the UIP UDP uses the maca.c file and i do not believe it does. I found that the maca uses a struct called packet_t and the UDP doesn't seem to.

Any help with this would be much appreciated.

Thanks,
Jon




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Elnaz Rezaei | 17 Apr 18:32 2014
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Transmitter ouput power in MRM propagation model

Is the output power unit dBW?
Whare are the other transmitter output power settings?

--
Thanks,
Elnaz
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Lei Chen | 17 Apr 18:02 2014
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Porting Contiki to Shimmer2r

Dear Everyone,

I'm new here so I would like to say hello to everyone. I'm a PhD student in University of York. I'm currently working on Shimmer2r BSN platform.

As current Contiki distribution doesn't contain the Shimmer2r platform, may I first ask has anyone ported Contiki to Shimmer2r which supports the ECG expansion. If it's been ported, could you kindly share them with me as my work doesn't focus on porting Contiki.

If it's not been ported yet, could any of you give me some advice of what I should do to do the porting? I know Shimmer2r is similar to sky mote. I've modified some of the files in contiki/platform/sky to suit Shimmer2r (contiki-sky-main.c;;contiki-sky-platform.c;; Makefile.sky;; platform-conf.h). The first step I would like to achieve is to blink the LEDs. It can be compiled now but I can't download the firmware to shimmer2r using "make TARGET=shimmer2r savetarget" and "make blink.upload". The terminal told me it's done but nothing is downloaded. I think I need to modify the code in "contiki/tols/sky/" to setup the download settings.

It's my first time to port an OS so I'm quite confused. Hope you can help me with this.

Regards,

Lei Chen

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Mariem zayéne | 17 Apr 15:32 2014
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Compilation error on sky platform

Hi all,

I changed udp-server.c , I added to udp-server other methods and other includes for enabling server sending multicast, I  tried to compile on sky mote, but there the following error messages:

/usr/lib/gcc/msp430/4.5.3/../../../../msp430/bin/ld: udp-server.sky section `.text' will not fit in region `rom'

/usr/lib/gcc/msp430/4.5.3/../../../../msp430/bin/ld: section .vectors loaded at [0000ffe0,0000ffff] overlaps section .text loaded at [00004000,00010059]

/usr/lib/gcc/msp430/4.5.3/../../../../msp430/bin/ld: region `rom' overflowed by 330 bytes
collect2: ld a retourné 1 code d'état d'exécution

make: *** [udp-server.sky] Erreur 1
rm udp-server.co obj_sky/contiki-sky-main.o
Process returned error code 2

I changed to Zolertia mote, and It is well compiled.

I don't understand what's the problem ?

 What can I do for the compilation on sky platform ?


Thanks in advance,

Mariem



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Nikeshman Shakya | 16 Apr 14:42 2014
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Tx and Rx success ratio

Hello,

I have used TX success ratio to be 85% and RX success ratio to be 80% in cooja 
simulator with UDGM-Distance loss

Although a random function is used to obtain the random total success ratio, 
when i logged out the packet etx obtained from the link neighbor callback 
function of rpl-mrhof.c . i observed that every time i run the simulation, the 
packet ETX of 256 or 384 or so on appears always at the same time instant. I 
didn't understand this. Can anybody help?

Best Regards
Nikesh Man Shakya

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Nikeshman Shakya | 16 Apr 12:29 2014
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Issue with the Energest

Hello Everyone,

I am performing a test in cooja to see the energy consumption. I am using energest model to keep track of the total energy consumption of the node. I am using SKY motes.

To my knowledge, 

avg_power =  (unsigned long) ((1.8 * energest_type_time(ENERGEST_TYPE_CPU)  +0.0545 * energest_type_time(ENERGEST_TYPE_LPM) + 20.0 * energest_type_time(ENERGEST_TYPE_LISTEN) + 17.7 * energest_type_time(ENERGEST_TYPE_TRANSMIT)) * 3 / RTIMER_SECOND  )

this equation returns the total energy consumption of a node till the current time.

My problem is: I ran the simulation for 80 hours and from the log values, i came to know that after around 37 hours, total energy at current time is lower than the previous time. Is it the problem with the timer used in the energest? Following is the part of the log file

Time Energy consumed
37:04:39.213 84040
37:05:06.213 84056
37:05:34.214 84075
37:05:40.214 84079
37:06:09.213 84095
37:06:26.213 84106
37:06:46.214 84118
37:06:54.213 84123
37:07:25.214 62711
37:07:49.214 62726
37:08:00.213 62734
37:08:25.214 62749
37:08:38.213 62756
 
Please help. Thank you in advanced


Best Regards,

Nikesh Man Shakya,

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Gmane