Vint Cerf’s Wine Cellar

Here is a video from Youtube containing the excerpts of the speech delivered by the Father of Internet, Vint Cerf, at Singularity University enlightening us about the future of WSN πŸ˜€
He uses a IPv6 deployment..the one that was made by Arch Rock before it was acquired by Cisco.


RTCSP 2011

Published my B.Tech project, which was to perform tracking and tracing using Bluetooth,Β  in the recently culminated National Conference on “Recent Trends in Communication, Computation and Signal Processing”Β  at Amrita Vishwa Vidyapeetham.

I have started “learning through action” the document publishing software LaTeX and am in love with the Beamer document class. The slides for the national conference was created using LaTeX and Beamer. DownloadΒ  :Β  Bluetooth Device Localization

Feedback please.

The latest developments

Its been some time since I blogged. The project has moved on with various experimentation’s and teaching’s!

The important ones being :

1. Starting to code in nesC and teaching it πŸ™‚

2. I modified in the mda100 sensorboard platform to return both light and temperature..

I changed the message structure of the program “RadioSensetoLeds” and added a new data part to the message struct so that it carry the temperature data as well..and then programmed it into a mote. In another mote, I programmed the “Basestation” program which enabled meΒ  to retrieve the messages send by the previous mote.Since the “Basestation” program bridges the radio module to the serial port and vice versa(a serial forwarder), the retrieved radio messages can be easily visualized using a serial port listener.

Finally I wrote a multi line command to convert the hex values received serially into proper temperature in celsius using “awk”. It was awesome when I wrote that command which worked brilliantly well… (gratitude to “Sir Rax”)

Now I have to do “Over the air” programming in which I have to avoid the epidemic propagation of Deluge protocol. I need to reprogram specific motes and I am stuck here… I tried converting over to 6loWPAN and using nwprog..which is point to point… But unfortunately I don’t get a UDPShell at port 2000 using nc6 from a client mote programmed using . But the tunnel driver works and the mote programmed with IPBasestation returns a shell over telnet. I can also ping the remote client using ping6…but nc6 doesn’t work. “tos-nwprog” was also missing initially from the $TOSROOT/tools/tinyos/misc folder.

Now at a standstill… Don’t know how to proceed.. Its me staring at the MicaZ motes.. Day in.. Day out.. 😦

One day everything shall work… One day…

OTA programming successful

After hours of serial programming..and issuing command after command.. I used Deluge to OTA program πŸ™‚ Happy now? Hmm..not yet. So I prepared my own program, Deluge supported, to see if I could re-reprogram using Deluge. After few hits and crashes.. It worked. Now time for CGRAN’s magic IEEE 802.15.4 enabled workaround for SDR to be put into work so that we can start capturing packets and see what’s being sent in real..message structure so as to speak πŸ™‚

Happy today.. Lots of masti with Sir ‘Rax’ πŸ™‚ Happy that he is finally back and by the by.. Time to reeeeeeally learn NesC now..its become a pain in the ass necessity. πŸ˜›

Feels like I have scored a home-run.. but there is a lot to improve..a lot more to be accomplished πŸ™‚

Back to research. :)

Tried Moteconfig and MoteView. Blah πŸ™‚ seems good but I still like my linux interface. Its much better πŸ˜‰
Tried my hands on OTAP but seemingly OTAP has a threshold power requirement…oops..this is going to complicate things a bit. 2.7V is the threshold..and my batteries each show a point lower than this threshold value. Talk about luck!! 😦
Anyhow.. I bought a new set of batteries..tried OTAP again..but everytime I tried to reboot to the OTA Golden image…it wouldn’t work..and after 4 odd tries..battery power again below threshold.
Darn it.
Then shifted focus to deluge..but bootstrapping has failed me.. oh no.. Now I am too tired to handle this at 1 in the morning especially since I have to travel back to campus tomorrow.Hope tomorrow is a better day πŸ™‚