Hello friends, I joined the group only recently. This is my first mail to the group. I hope I will get good knowledge from the group. Anyway, I have a doubt....
I am having trouble getting my robot to drive straight. Does anybody know where i can get some IC routines that use shaft encoders to compensate for one wheel...
Ethan, What version of IC are you using? There should be encoder routines in the handyboard directory of IC 4 (see encoders.lis there). what kind of chassis...
hello guys, does anybody have the code for keeping the robot(handy board based) in a straight line. Also, which type of sensor detects a black color surface...
Rast, There is encoder function built in in IC4. check it out at IC4 { enable_encoders(int), disable_encoders(int), read_encoders(int), reset_encoders(int) }...
So is the best way to drive straight to use encoders on the front wheels and then a caster wheel in back? I have tried several approaches and would like to...
What surface are you moving across? Any chance the wheels could slip? I never rely on encoders to drive straight. I take multiple sonar/IR readings within...
The robot will be on smooth tile, so the wheels should not slip. ALso, it is in a big room, so I dont think the sonar readings will work, the distance will be...
Hi, Before working on a software approach to making your robot go straight, you should first make every effort to get the hardware itself moving as straight as...
hi Ethan, The Martin book has some plans for building lego quadrature shaft encoders. Alternatively, you can build a DRL Daughterboard, designed by Anne Loomis...
hey all, I noticed that other people had a simliar problem, but I never saw a solution posted, so I'll ask again. When I try to download firmware to my Handy...
Hi I am building my Handy Board from scratch. I need some queries cleared. Any help would be great: 1. what is the infrared demodulator . Is it a infrared ...
Hi Ben I have try the code, but the PWM cycle is too long it take 1ms to 37ms. The counter is overflow. Do you know which register to control the IC3F timing...
Okay. I guess it all depends on what level of accuracy you are trying to obtain. More info about the application and maybe we could offer more suggestions....
This is a class assignment, and our robot is supposed to reach the four corners of a 6X6 foot square 3 times...so that is twelve corners. So the robot really...
on my native planet (Earth) there are no friction less materials, and there are no systems that have no slippage... I guarantee there is a coefficient of...
thanks for the help, but keep the smart alek remarks to yourself, im new at this. Tire slippage really isnt a problem because the robot isnt taking off from a...
The HB internal Battery is rated at 9.6V 600mAh. Thus the optimal DC motor to work with it would be one of the rating around 9V. Now my question is I'm...
Hi Benparsy and others! I don't really understand the way you used the "pooling method" in your reply to Ken. (We are working on the same project) For my case,...
I am facing the small problem as well. Currently I have 4 handyboards on hand and 2 of them having the same problem described. Appreciate if anyone can solve...
Hi ! I had the same problem a few weeks ago, I found my voltage regulator U13 which sits right behind the on/off switch to be faulty. Since replacing it I've...
Do you have to accomplish this using encoders on the wheels or was that just one idea? If you're trying to get to the four corners of a square which is marked...
Ethan, Sorry if I offended, but that was not a smart aleck response. It always seems the laws of physics are the first thing we write off when starting into...
Ethan, Jim is 100% correct. Any time the wheels are moving... there is slippage. Period. One thing I like to do when designing/building a robot is to...
Thanks for all the help guys.. maybe I took Jims remark a bit too seriously. By the way, the only thing that is marked with tape in the big 6x6 foot square...
Ethan, So you basically need to hit the 1x1 squares? If you can get that thing to travel in a straight line, you could use optical sensors to sense the edge...
Lyle Joseph Chamberlain
lyle@...
Feb 7, 2003 8:52 pm
801
Hi, The RC car motors will probably run fine with either the HB battery or the RC battery, but the RC battery will run longer because it is rated for a higher...
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