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college
Simple Finite State Machines in C
Apr 5th
I was having discussion about State Machines with one of my friend, regarding pro’s and con’s of implementing programs as Sate Machines, it was then that i realised there is no simple way to implement programs as Finite State Machines, so here is a very basic implementation of FSM in C
file: fsm.h contains the function definition for our FSM
Weekend Project
Mar 11th
In Dec 2009 at foss.in at the maemo stall i saw a guy control a small toy car through accelerometer on his N900, i thought of replicating that but it just remained in my mind, so last Saturday i finally decided to implement it and went straight to a toy store and bought a toy RF car, one hour of hacking and i was able to control the small car through by phone (Nokia E61i) here is the video of it working.
the concept is simple, i send commands through my phone over wifi to my laptop which controls the car remote, controlling a toy car remote is very easy with a Parallel port and few transistors but laptops don’t have parallel ports, so i used a micro-controller in between to sort that out, so now micro controller controls the car remote by acting on signals received over UART from laptop.
the working is Phone —(WiFi)—>Laptop —(USB/UART)—> Micro controller —(Relays)—> Car Remote —(RF)—> Toy Car
will post details with code sometime later
How Manipal got its first Linux (fedora) server
Jun 25th
It all started with a failing Student’s Teacher Feedback System, designed by few fourth year students of my college, in oct-nov 2008 the system was not able to scale and everything was reverted back to paper, it was then when i was contacted by a teacher from my Department ( Information and Communication Technology ), regarding if i can improve it.
i asked DJ if he wants to join me and after few weeks of coding there it was Manipal university’s first (working) Feedback System, when the point of hosting it came, i was surprised to find Manipal University has no Linux servers, i mean come on no Linux what are you people click sys admins, then we decided to setup our own server in the department, thus giving Manipal university its first Linux ( fedora 10 ) server.
currently it just hosts the Feedback System, but we are planning to use it as local ( internal ) fedora repository mirror, we need permission from the WiFi provider ION because almost all the students use only WiFi and not LAN, last time we tried we were denied by saying ” You are a threat to our network “, lets see how it goes this time. we will also require people to manage it but i think this can be handled very well by LUG Manipal, some pics
Fedora 10 server in Manipal
Fedora 10 server in Manipal
PS – i am looking for a way to convince them that setting up a mirror will be helpful for them as well as students can anyone suggest me how to go about it??
ION proxy login problem
Feb 16th
a few days ago ION (WiFi provider in Manipal University) started an ISA based proxy using NTLM authentication, which according to them was a client install!!! some people were facing problem with it, like their browsers were asking for authentication (login) again and again, and repositories were not working on Linux.
So here is a simple screencast with solution for this problem it works great in Linux (esp. Fedora) i have also included configuring yum here, if someone wants to use apt-get (debian/ubuntu) they can do
export http_proxy=http://127.0.0.1:5865
Ok coming to the main point, go and download http://sourceforge.net/projects/ntlmaps/ and then watch the video here
People on windows can install python from here and then follow the steps
ION proxy problem solved
Note:- If You face any problem please post back here….
PS:- every thing in Text form coming soon… (i am lazy)
MobiVision, Techtatva 08, LUG Manipal and lots more….
Oct 20th
I am posting to my blog after a long long time and a lot has happened, first Lets start with MobiVision.
People in MobiVision Workshop
MobiVision (Brain child of Subhendra Bhaiya) was a workshop conducted by people from LUG Manipal ( well not officially but everyone involved in it was from LUG Manipal ) as the name suggests it was on developing Application for mobile Plateform, basicly targeting Python for Series 60 and Android, We were expecting turnout of around 100 people and more the double turnout took us by surprise, it saw a partisipation of over 200 which comprised of guys/gals from First to Fourth year which was really amazing we even had people doing PG showing Interest, we had some trouble managing them in 2 rooms which were alloted to us but in the end every thing turned out pretty well. We had 2 Teams ready one for Python S60 and one for Android, Both teams did a great job and made Mobivision the most sucessfull Workshop in Techtatva 08.
Team MobiVision
Next was Techtatva 08 which is the annual Technical Fest of Manipal Institue of Technology, Manipal, Here again LUG Manipal was in full control ( and again not officially!!! ) we were to conduct events for the Computer / IT Catagory called ” PARAM ” and we planned to change the previously conducted events so as to make them fit in the 4 basic catagories of people –
1) ” MobiVision ” for Inovators here teams where to come up with a inovative Idea for Mobile Application and a prototype
2) ” Jour ” for Developers here teams were to make any one of the three Projects and give a Presentation and Demonstration of their product
3) ” CodeBytes ” for Programers the usual problem solving event with not so usual questions
4) ” Puzzle Mania ” for Every Day internet users comprising of all sorts of Puzzels
all the events saw good participation from all years and were prased for not having a single glitch.
Raunaq, Me and Nishant
I also made a Deligate and Event Registration system for managing and registering all the people coming for Techtatva 08 and also a CBT ( Computer Based Test ) system for priliminary rounds of some events, it was all basicly made in PHP and used MySQL as primary Database and was hosted on a Fedora 9 ( for those of you who dont know what it is — Its a GNU/Linux Distribution and also my Primary OS ) based server running Apache in Student Councels room because we/I were/was denined permition to host it on the main Manipal University server, they said “You are a Threat for our Network!!!” ??? which left me wonder what kind of stuff they do there and what did i do to them??? ( reason for which i got to know later ) anyways we managed to get a lab computer for using as a server, it had a AMD Athlon x3800 CPU, 80 GB HDD and 1GB RAM, which was all i needed for my work, the PC was formatted and fresh Fedora 9 was installed on it, after this all updates were applied which didn’t took much time as the connection there is not at all like I-ON and is at least 10 times faster ( well it was MAHE LAN and I-ON is WiFi but still!!! ) some changes in http.conf and iptables and it was ready. The System ran without a glitouch except when someone made the LAN cable for the server loose which made all on Registration Desks shouting but luckly everything was back online in 2-3 mins. The CBT’s also ran very good and results were decleared as soon as the alloted time was over and there were no objections.
CBT - updates, running on a lab PC for real time updates
Monitoring people in CBT
ginni ( back ), piyush and me ( during CBT )
Well this is enough for a post now 3rd Sessionals are approaching and i need to study as i screwed my 2nd sessionals, so bye
Ankur Shrivastava
Using YUM with a proxy Fedora
Sep 27th
Finally i got a chance to use the awesome LAN at the college campus and it was a very good time to update the packages, but there was a problem it had a proxy, so i typed man yum and was pointed at man yum.conf and there it was a simple solution, all the you need to do is just edit the yum.conf file as root
type
su
enter your root password now type
nano /etc/yum.conf
here add a line
proxy = http://address:port
replace the above code with the address you need like 172.16.19.10 and port 80 in my case and all will work just fine
Enjoy!!!
Ankur Shrivastava
Ion Auto Login for Windows XP/ Vista
Sep 19th
Ion Auto Login ( IAL ) script written in python has been updated to a exe, that means it will run directly from your windows just by clicking ialv1.exe. To change the username and password delete the ial.info file, if you face any problem please comment on this post
download here size 2.3MB
Linux and Mac users can download this and execute it by typing python ialv1.py
Enjoy!!!!
PS – 1 known problem if no connection it there it goes into an infinite loop to come out press Ctrl + Pause or Ctrl + Break
UPDATE — the link now points to updates made by GenobZ ( Prakhar ) which makes it more efficient……… the old link is here
ION Auto Login Script in Python Version 1
Sep 17th
After yesterdays efforts i have now made a complete working Python IAL (ION Auto Login) script which can store your password and checks for login in every 1 Min and continues till you stop it, here is the Code
iimport urllib, urllib2, time, cPickle
class ialv1:
interval = 0
username = ""
password = ""
def __init__(self):
try:
f = file('ial.info')
list = cPickle.load(f)
self.username, self.password = list
f.close()
except:
print "Welcome to I-ON Auto login Script\nMade by Ankur Shrivastava\n"
self.username = raw_input("Enter Your Username: ")
self.password = raw_input("Enter Your Password: ")
list = [self.username,self.password]
f = file('ial.info','w')
cPickle.dump(list,f)
f.close()
def check(self):
data = {"loginID":self.username,"loginpassword":self.password,"flag":"0","popcheck":"0","submit":"Sign In"}
value = urllib.urlencode(data)
request = urllib2.Request("http://192.168.150.2:8080/clntAuth/clntAuth_main.jsp",value)
bol =1
while (bol ==1):
try:
open = urllib2.urlopen(request)
print "Logged In"
bol = 2
except:
print "Server Gone Crazy\ntrying again...."
if __name__ == "__main__":
i = ialv1()
while (1):
i.check()
time.sleep(60)
You can Download it here
I Love Python!!!!!!!
Ion Auto Login script in Python
Sep 16th
i was just thinking about making the very famous IAL script of DJ in python and here is it and its damn simple
import urllib, urllib2, time
username = "Your username"
password = "Your Password"
interval = 10
data = {"loginID":username,"loginpassword":password,"flag":"0","popcheck":"0","submit":"Sign In"}
value = urllib.urlencode(data)
request = urllib2.Request("http://192.168.150.2:8080/clntAuth/clntAuth_main.jsp",value)
print "Logging In\nMade by Ankur - http://ankurs.com"
while (1):
open = urllib2.urlopen(request)
responce = open.read()
for i in range (1,interval):
print (interval-i),"min Till Next Login"
time.sleep(60)
print "Logging In\nMade by Ankur - http://ankurs.com"
or downlaod
run it by typing python ial.py
it uses urllib, urllib2 and time which are the default module, you have to change the username and password to your username and password, changing the interval changes the time interval in which auto login takes place. enjoy!!
PS – current it does no check if your connection is active or not, will add that soon
Accessing any site blocked by sonic wall!!!
Aug 26th
Removed because of objection form ION
old text avaliable here
