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 2009-01-08T06:34:23-08:00 contact@nospam.com hourly 1 2000-01-01T12:00+00:00 http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 HEY GUYS I WANNA HEP FROM YOU PEOPLEI AM IN TY DIP. I HAVE PROJECT ABT CREATING ROBOT WHICH LIFT THE BALLREQ ::3 COLOR SENSOR1 OBS DETECTORTWO SERVO MOTORROBOTIC HANDIR RECIEVERI HAVE SOME ACTIONS FOR HIM TO FOLLOWMAKE COLOR SENSOR ONTAKE ROUND FOR FINDING RED COLOR BALLIN DETECTED THEN GO NEAR TO IT. IF OBS DETECTED THE OVERCOME THE OBSTHEN GIVE ROBOTIC HAND SIGNAL 1.SO ROBOTIC HAND WILL PICK IT UPTHEN MAKE IR RECEIVER ON TRACE THE TRANSMITTING STATION GO THERE OVERCOME OBS IF DETECTEDMAKE ROBOTIC SENSOR SIGNAL 0SO IT WILL PUT BALL DOWNSEARCH FOR NEW ONE http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay ok thats really a nice idea 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.. http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi AS AM USING COLOR DETECTOR FOR BALLSO IF BALL DETECTED THEN I CAN I DENTIFY THAT BALL IS THERE http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay what if there is any other obstacle with red color then? and is there any information you have in your mind till now? regarding what to do? or you just have the idea?what sensor are you using for color detection? http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi thats rightso what should i do for that+ how the interfacing digram should bewhich tpye of motor should i use http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay Check this link for reference.. Fast Color-Independent Ball Detection for Mobile RobotsAlso.. See this for more information on color sensing Model Retine: Color TrackerCome on man! there are lot of things on the internet.. you need to do research!! http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi THANX man for that but cant i get ready one for that purpose http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi & where to buy motors at low cost & which micro controller should i use http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay why gave you this tricky idea? 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. http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi this project was given to us by our professorwe 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 : 3inchball colour : redcolour sensors : atleast 3, maximum 5 sensorsobstacle detector : atleast 3robotic arm (with rotation)placement:object sensor: 0.5inch above groundconsidering the ball is exactly in front of the robotcolour 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 behave3. while finding the ball (i.e rotating), the robot may get distracted or malfunction and may not stop at the exact postion4. 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. http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay I think if i was making this.. i will first try a straight approach and then make advancement according to the response received from the prototype.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? http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi WELL my guide suggested me to use PII comp to interface it 2nd thing i am using raster scan method to scan it ball or obs or objso 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 http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi yo man now i need help in interfacing circuit my motors to pc &also interfacing sensor to my circuit to PII .i will give detailed no of sensor later on http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay ok! P2 means speed.. and of course raster scan need high end processor for it... aren't you making your robot an autonomous? or you are going to carry the whole PC along he he...give me more info.. http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi actually am using pentium2 processor but making it autonomous using softwere http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi listen up man i wanna circuit for controlling stepper motor using pc with program http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay sorry man! i don't give circuits!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.. http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi i got success http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi uploaded all detail on rapidshare.comif any one hav any query can contact me on my mail :akibsayyed@gmail.comhttp://rapidshare.com/files/114788609/project_report.rar.htmlEnjoy http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Arun Kumar V Hai Algazi,89S52 is a 8KB device, you have described it as a 4KB device thru out your Project.Arun http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay are you willing to upload it on 8051projects.net? http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi tell me how can i upload it or ur free to download from rapidshare.com n upload it on ur site http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 algazi abt 89s52 it was just info my friend wrote but then also its true that 89S52 is 8kb device!!!! http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 shyam to upload it u can PM the material to ajay or me.but we understand that u are willing to share ur report with us , so it will soon be published with ur name. http://www.8051projects.net/forum-t1768.html 2009-01-08T06:34:23-08:00 Ajay Please check your PM