Category Archives: Uncategorized

My new blog space

Hi all..

http://jeffrey.co.in/blog/ is my new blog space.

This is my first post in this year 2009.

My last blog post was on december. Last year I had made an decision that I will have my own domain. Anyway that is now fullfilled.

Please visit my new blog http://jeffrey.co.in/blog/

Also I have setup a wiki for my articles http://jeffrey.co.in/wiki/

My future posts will be on http://jeffrey.co.in/blog/

Bye Bye WordPress.com for powering last one year…… WordPress is superb.I had moved to a new domain because I want my own blog. My new blog is powered by wordpress 2.7

BYE BYE WORDPRESS……………………

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Forking Ubuntu: The Story of gNewSense

Last week i had a try on gNewSense.

It was one of the GNU/Linux distro recommended by GNU on the page linked here.
The one I am giving here is a file in the home folder of the gNewSense CD.

It the story of how gNewSense was made. So I taught of sharing it.
It was a seminar conducted by Brian Brazil on ILUG AGM 4th November 2006.

Please download it from here forking ubuntu

The actual file format is odp. But wordpress wont allow to upload odp.

So please rename it into ForkingUbuntu.odp

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Open Source Hardware (electronics) projects

I am very interested in open source projects.Even I am working on it.
See one of my open source project at digital GNU.This is basically a parallel port project.You can check it here.

Even there are more floating in the internet.Please check these links
http://www.ladyada.net/
Her blog
http://www.ladyada.net/rant/
Check her another page http://www.adafruit.com/
Also some coll video at here http://citizenengineer.com/

I will update this page for more. Please check here

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Free Softwares in University Labs

I am in Jyothi Engg College Cheruthuruthy,Kerala,India.Here to say the most commonly used OS is Window$ XP.So shifting to GNU/Linux I think its not easy.Even I have asked the CS Lab Department.

One of my Friend Shyam K (I only know him through IRC at smc-project FREENODE) has given an open letter to his HOD about use of proprietary software inthe curriculum.SEE these link http://swatantran.blogspot.com/2008/07/open-letter-to-my-hod.html

Also see this Shyam’s “open letter” to his HOD concerning use of proprietary software in the curriculum

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cOmPuTeR EsSeNtiaLs

All live in the wolrd of computers.So to know about computers is very impotant.
There is no world of computers without UNIX.
Even to be a hacker or an well internet user you must be good in UNIX.
If you know UNIX then there is no problem with GNU/LINUX,FREE BSD,OPEN SOLARIS.
Use any of these.This is very important in the world of computers.

Today I will give some links to pages that willl improve youreself.
These are some links obtained from my daily life.
Go through these.You will be benifited.

http://www.iu.hio.no/~mark/unix/unix.html
http://en.wikipedia.org/wiki/Unix
http://en.tldp.org/HOWTO/Unix-and-Internet-Fundamentals-HOWTO/index.html
http://linuxmafia.com/faq/Linux_PR/newlug.html
http://www.catb.org/%7Eesr/faqs/hacker-howto.html
http://www.catb.org/%7Eesr/hacker-emblem/
http://catb.org/%7Eesr/writings/unix-koans
http://en.wikipedia.org/wiki/Hacker
http://fci.wikia.com/wiki/Hackers
http://en.wikipedia.org/wiki/Unix-like

And for Free Software geeks I am adding thiese pages

http://en.wikipedia.org/wiki/Richard_Stallman
http://en.wikipedia.org/wiki/Linus_Torvalds

Also this an all in one

http://www.comms.scitech.susx.ac.uk/fft/

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Don’t publish papers with the IEEE!

My visit to Richard Stallman’s Personal Home Page gave me this .

This link from Richard Stallman’s Personal Home Page tells about the IEEE.

Actually it is is a link to D. J. Bernstein site from Richard Stallman’s Personal Home Page.

Any way I loved it. I was in to join the IEEE. But for now I am sure I wont join the IEEE.

Any way read this link to know more

http://cr.yp.to/writing/ieee.html

To know more related matter go through this link http://cr.yp.to/djb.html

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ഇലക്‍ട്രോണിക്സ് അവധികാലത്ത് (ഭാഗം 1)

ഇലക്‍ട്രോണിക്സ് വളരേ നല്ല ഹൊബിയാണ്.ഈ അവധികാലത്ത് ഇലക്‍ട്രോണിക്സ് ഹൊബിക്ക് തുടക്കം കുറിക്കാം.
ചെറിയ ഇലക്‍ട്രോണിക്സ് സെര്‍‍ക്യുട്ട്‍സ് ഇന്‍‍റ്റ്ര്‍‍നെറ്റില്‍‍ തിരഞ്ഞാല്‍‍ കിട്ടും.
ഇലക്‍ട്രോണിക്സ് പ്രൊജെക്റ്റ്സ് ചെയ്യാന്‍‍ ഏറ്റവും ആവശ്യം വരുന്നതാണ് DC പവര്‍‍ സപ്പ്‍ളൈ.
ഇലക്‍ട്രോണിക് സര്‍‍ക്യൂട്ടുകല്‍‍ പ്രവര്‍‍ത്തിപ്പിക്കുന്നതിന് വൈദ്യുതി ആവശ്യമാണ്.
ഇതിനാവശ്യമായ DC ബാറ്ററിയില്‍‍ നിന്നും ലഭിക്കുന്നതാണ്.
ബാറ്ററി കറന്‍‍റ്റിന് സമാനമായ DC വീടുകളില്‍‍ ലഭിക്കുന്ന മയിന്‍‍സ് ACയില്‍‍ നിന്നും ഉല്പാദിക്കാവുന്നതാണ്.
ഇതിനുള്ള ഉപകരണമാണ് DC പവര്‍‍ സപ്പ്‍ളൈ.
ഞാന്‍‍ ഒരു DC പവര്‍‍ സപ്പ്‍ളൈ നിര്‍‍മ്മിക്കേണ്ടത് എങ്ങനെ എന്നു വിവരിക്കാം.

ആവശ്യമായ ഘടകങ്ങള്‍‍

ട്രാന്സ്ഫൊര്‍മര്‍‍ 12V,1A -(1)
ഡയോഡ് 1N4007 -(5)
കപ്പാസിറ്റര്‍ 100mfd/25v -(2)
ഫില്‍റ്റര്‍‍‍ ചൊക്ക് -(1)
റസിസ്റ്റര്‍ 1K ohm -(1)
എല്‍‍.ഈ.ഡി -(1)

സര്‍‍ക്യൂട്ട്

സര്ക്യൂട്ട് circuit

എന്‍‍റ്റെ DC പവര്‍‍ സപ്പ്‍ളൈ

DC Power Supply DC Power Supply

DC Power Supply DC Power Supply

DC Power Supply

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