http://jeffrey.co.in/blog Blog on My Life, Open Hardware, Free Software, India ...... Fri, 19 Feb 2010 05:28:24 +0000 http://backend.userland.com/rss092 en Its a long I updated my web page. So I thought of a new start. This time I made my page more simpler with basic black & white colour. These days I was busy with my PG Diploma course in Embedded System Design. Update is going on... http://jeffrey.co.in/blog/2010/02/new-look-for-my-webpage/ "Electronic Design and Fabrication with gEDA" is my first article in LINUX For You Magazine. This is the first time I am forgetting to blog about my article. Actually it was published in last month(NOVEMBER 2009) issue. Please read it if possible. This article mainly gives a quick introduction about gEDA. I ... http://jeffrey.co.in/blog/2009/12/electronic-design-and-fabrication-with-geda/ See this cool open source project from Evil Mad Scientist Make a Robotic Snap-O-Lantern! http://jeffrey.co.in/blog/2009/10/robotic-pumpkin/ I have seen some web pages defining that current sinking and current sourcing are same. But the truth is that they are different. This is a tutorial about current sinking and current sourcing in Integrated Circuits(IC). Current Sinking & Current Sourcing Tutorials http://jeffrey.co.in/blog/2009/10/current-sinking-current-sourcing-tutorials/ More example programs for Octave has been posted in my wiki page. Please vist More  Octave Examples If you don't know about Octave, I have been maintaining a wiki page for Octave. See the link below http://jeffrey.co.in/wiki/doku.php/experiments_using_octave_for_b-tech_course http://jeffrey.co.in/blog/2009/10/more-octave-example-programs/ This time I am with an AVR USB board. It is an tiny development board for the AT90USB162 chips.  I have actually made this board design for my friend's main project. The design has been made using gEDA. It's an complete open hardware project. But still the schematics are missing. Actually ... http://jeffrey.co.in/blog/2009/09/at90usb162-mini-development-board/ Last day I bought a USB MP3 player board from a local store in Thrissur. This board can read MP3 files from a USB thumb drive and play it for you. The board circuit diagram is so simple that there are a very few connections. some of the connections are IR sensor ... http://jeffrey.co.in/blog/2009/08/usb-mp3-player/ Two days before I got my CPLD (complex programmable logic device). Here are some snap shots of my CPLD XC9536. The main problem is that there is not much support for programming these CPLD xc9536 using free software. There are tools available for programming this cpld. But all of them are ... http://jeffrey.co.in/blog/2009/07/my-new-cpld/ Wanna get some cool training on Free software topics like How to do free software projects, Tutorials to use GIT , RPM Packing ? Then come to the online IRC summer training from Linux User Group of Durgapur (http://dgplug.org) Entry is free. Just log on to the IRC of DGPLUG #dgplug on ... http://jeffrey.co.in/blog/2009/06/free-software-summer-training-09/ In a pursuit of fabricating pcb's, I have won. I had designed pcb's boards using PCB. But when I tried to fabricate the pcb in my home, I used to fail. the problem was with the Acrobat Reader  . When I take the print out on the paper for layout ... http://jeffrey.co.in/blog/2009/05/atmega8-mini-development-board/