http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2008 Rickey's World contact@nospam.com (Ajay Bhargav) contact@nospam.com (Ajay Bhargav) Wed, 07 Jan 2009 12:44:03 -0800 Wed, 07 Jan 2009 12:44:03 -0800 http://backend.userland.com/rss e107 (http://e107.org) 60 Search 8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes query http://www.8051projects.net/search.php http://www.8051projects.net/forum-t1768.html


I AM IN TY DIP.




I HAVE PROJECT ABT CREATING ROBOT WHICH LIFT THE BALL

REQ ::
3 COLOR SENSOR
1 OBS DETECTOR
TWO SERVO MOTOR
ROBOTIC HAND
IR RECIEVER
I HAVE SOME ACTIONS FOR HIM TO FOLLOW

MAKE COLOR SENSOR ON
TAKE ROUND FOR FINDING RED COLOR BALL

IN DETECTED THEN GO NEAR TO IT. IF OBS DETECTED THE OVERCOME THE OBS
THEN GIVE ROBOTIC HAND SIGNAL 1.
SO ROBOTIC HAND WILL PICK IT UP
THEN MAKE IR RECEIVER ON TRACE THE TRANSMITTING STATION
GO THERE OVERCOME OBS IF DETECTED
MAKE ROBOTIC SENSOR SIGNAL 0
SO IT WILL PUT BALL DOWN
SEARCH FOR NEW ONE





]]> Thu, 23 Aug 2007 07:25:58 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html is it for some kind of competition or what?
most important.. what have you done till now?
i expect you have selected the sensors you are going to use..]]> contact@nospam.com (Ajay Bhargav) Thu, 23 Aug 2007 08:16:18 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html SO IF BALL DETECTED THEN I CAN I DENTIFY THAT BALL IS THERE]]> contact@nospam.com (Ajay Bhargav) Fri, 24 Aug 2007 01:32:57 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html
what sensor are you using for color detection?]]> contact@nospam.com (Ajay Bhargav) Fri, 24 Aug 2007 03:22:29 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html so what should i do for that








+ how the interfacing digram should be



which tpye of motor should i use


]]> contact@nospam.com (Ajay Bhargav) Wed, 29 Aug 2007 04:25:37 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html
Fast Color-Independent Ball Detection for Mobile Robots

Also..
See this for more information on color sensing
Model Retine: Color Tracker

Come on man! there are lot of things on the internet.. you need to do research!!]]> contact@nospam.com (Ajay Bhargav) Wed, 29 Aug 2007 04:50:08 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Wed, 29 Aug 2007 22:57:53 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Wed, 29 Aug 2007 22:59:16 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html I mean.. no doubt its good... but still very complicated for you i guess. use simple DC motors.. they are good and you can get whatever size and voltage you want.

Regarding micro.. i must say... whatever architecture you know use that microcontroller. Because it will be easy for you to program it.]]> contact@nospam.com (Ajay Bhargav) Thu, 30 Aug 2007 01:26:48 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html we accepted it as a challenege and we're now stuck.
we have made our basic idea but need someone to help us improve this idea.
our idea:
ball diameter : 3inch
ball colour : red
colour sensors : atleast 3, maximum 5 sensors
obstacle detector : atleast 3
robotic arm (with rotation)

placement:
object sensor: 0.5inch above ground

considering the ball is exactly in front of the robot
colour sensor:
two at 1.5inch above ground (i.e. at centre of ball on either side of ball)
& one 2.9inch above ground (i.e at top of the ball)
& one 0.2inch above ground (i.e at base of ball)
.
the problems arising are:
1. if the ground is not exactly flat, then obstacle detectors (being close to the ground may generate errors)
2. if there is a larger ball place, also red colour, then how should the robot behave
3. while finding the ball (i.e rotating), the robot may get distracted or malfunction and may not stop at the exact postion
4. we need a robotic arm working on digital input... either we'll make it ourself (as last resort) or buy it (provided we can program it the way we need) but the actual problem arising is that the robotic arm should move fluently towards the ball and should not goof-up while trying to grip it.

could u share your idea, i mean... like how you would make such a robot.]]> contact@nospam.com (Ajay Bhargav) Thu, 30 Aug 2007 05:20:26 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html
Ok..first i would try to make robot for a free size not for a particular size of ball.
2. To find ball is a tricky part.. as we are also taking the obstacle into account. So.. i will make use of color sensors for this.. assuming that only the ball is of color red not the obstacle.
so sensor should be good enough to track red color from a distance and then move towards it. This makes simple way of finding ball because you will not move towards obstacle while looking for a ball.
3. to pick up the ball.. there should be something which can grip the ball properly.. as ball is round in shape so can slip easily. so the arm should have three or more rods hold holding the ball and to avoid loosing it.

are you making the arm autonomous? if yes then its even more difficult if no then its easy as you can position it so that you get a perfect grip.

any comment on this?]]> contact@nospam.com (Ajay Bhargav) Thu, 30 Aug 2007 05:58:02 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html 2nd thing i am using raster scan method to scan it ball or obs or obj
so i can directly scan obj compress it & compare it with the actual ball image so to detect ball if it matches then it is ball if no then leave it ]]> contact@nospam.com (Ajay Bhargav) Fri, 31 Aug 2007 06:16:37 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Fri, 31 Aug 2007 06:20:59 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html he he...
give me more info..]]> contact@nospam.com (Ajay Bhargav) Fri, 31 Aug 2007 06:35:30 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Fri, 31 Aug 2007 06:51:58 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Fri, 31 Aug 2007 06:56:42 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html But i give guidance.. if u like it use it.. or neglect it..
you can use Serial port connection to your stepper controller.
send data to a microcontroller to control the stepper.. via wireless RF serial link.. the easiest way..]]> contact@nospam.com (Ajay Bhargav) Fri, 31 Aug 2007 08:22:23 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html
i got success]]> contact@nospam.com (Ajay Bhargav) Tue, 13 May 2008 18:15:15 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html

if any one hav any query can contact me on my mail :akibsayyed@gmail.com



http://rapidshare.com/files/114788609/project_report.rar.html

Enjoy ]]> contact@nospam.com (Ajay Bhargav) Tue, 13 May 2008 18:15:33 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html
Hai Algazi,

89S52 is a 8KB device, you have described it as a 4KB device thru out your Project.

Arun]]> contact@nospam.com (Ajay Bhargav) Wed, 14 May 2008 01:50:23 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Wed, 14 May 2008 14:48:31 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html or ur free to download from rapidshare.com n upload it on ur site]]> contact@nospam.com (Ajay Bhargav) Wed, 14 May 2008 17:29:08 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Wed, 14 May 2008 17:31:36 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html
but we understand that u are willing to share ur report with us , so it will soon be published with ur name. ]]> contact@nospam.com (Ajay Bhargav) Wed, 14 May 2008 17:58:56 -0700 http://www.8051projects.net/forum-t1768.html http://www.8051projects.net/forum-t1768.html ]]> contact@nospam.com (Ajay Bhargav) Thu, 15 May 2008 00:34:00 -0700 http://www.8051projects.net/forum-t1768.html