Monthly Archives: August 2012

sleepy programming!!

Yes, it was about 5 a.m. and I had a torrent of MATLAB 2012a being downloaded.  I did hear about the competition from Mathworks Simulink and think of trying for that.  Matlab was approximately 5gb and it is too much for a download speed of 64kbps!!!  Though I started it as my PC is usually all time ON.. It can give challenge to servers man, lolzz . The maximum time it was on was 3 and a half days continuously downloading a game from torrent.

I was actually feeling sort of tension because I had to go to college too after a few hours, first lecture is of MaZumDaaar madam!!!!!  So I decided to sleep putting an alarm alongwith (yeah, yeah yeah,, every other lazy and careless guy like me keeps an alarm to wake up, though it doesn’t make any affect…lolz.  I looked around for the alarm watch and I was not able to find it because actually I dont have one!!! 🙂 

So, I picked my phone but guess what It had already 3 alarms set for daily basis at 6:00 am to 7:00 am.  So I thought of making a new alarm because this alarm never works! Looking at my PC and my SPEAKERS, I had an idea of making the alarm on my PC.  As we all know there is already a watch available on everyone’s PC, no matter which OS you use, we usually get the ALARM  facility like that of Kalarm and others with different distros.  I thot of making it by my own irrespective of the fact that I was too much sleepy(on eye was almost closed sitting down on the chair). Read the rest of this entry

Serial Ports problem for Embedded guys in PC and laptops!!

So, its all about SERIAL PORT! and its problems for the Embedded guys.  All the stuff we come across usually have a serial port to interface or a USB port.  Older ones are usually having the Serial port to interact with as it is heavily cheap, a max232 and a few capacitors generally makes the work done under 20Rs. and voila! you are communicating serially!!!

Its really simple making the serial connections with any micro-controller 8051/AVR or PIC with such a cheap price.  Another thing “Arduino”, the open source hardware BOSS for 8 bit controllers has a USB support for it.

FTDI232 is the one which helps in interfacing the serial and USB in a real simple manner!!   Every other USB supported board uses it now, I guess.??

The modules in market like that of GSM/GPRS, RFID, GPS, Fingerprint scanner, Gyrosensor and a few other are easy to interface with serial connection as they send data over the serial line.  So, serial communication becomes quite important  to rely upon.

Most of the old motherboards gives the serial port as connector at the back(DB9).  The new ones don`t  provide the connector but a few do provide the connectors at the motherboard, You may click out some wires from the motherboard itself(another cheap way iff you got lucky to have the pin connectors ).

So, what to do if you got the new motherboard and FORTUNATELY  no serial port to work with.  (poor guy…)

You have got two options hereby,

  • purchase a usb to serial converter.
  • purchase a pci serial/parallel card.

Usb to serial Converter works easily i.e. OUT OF THE BOX; if you have got linux otherwise go and have fight with WINDOWS drivers :(…(lolz..) .  Do care while searching for the 64 bit drivers with Windows…(windows really SUCK..)

The second options is quite stable and reliable for PC case, and it gets into the CPU cabinet itself and you get a feel as if you have got a Serial/Parallel port. Read the rest of this entry