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Author Topic: Great Idea but need help  (Read 2159 times)

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Offline Farmerboy08Topic starter

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Great Idea but need help
« on: December 16, 2008, 05:15:42 PM »
I need to know how to run software and the electronics for a robot that has 2 motors and 5 diffrent sensors. I also want the robot to run off the computer thanks for the info.

Offline Lefteris

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Re: Great Idea but need help
« Reply #1 on: December 16, 2008, 06:18:49 PM »
I would advice you to read the 50$ robot tutorial to get a more general grasp of things. There you will see how to do what you ask, except there is only 1 sensor. (Just for a start)

Offline Farmerboy08Topic starter

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Re: Great Idea but need help
« Reply #2 on: December 16, 2008, 06:54:27 PM »
I would advice you to read the 50$ robot tutorial to get a more general grasp of things. There you will see how to do what you ask, except there is only 1 sensor. (Just for a start)
Thank you very much. How would i run that robot off my computer??

Offline Webbot

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Re: Great Idea but need help
« Reply #3 on: December 16, 2008, 07:32:43 PM »
Quote
How would i run that robot off my computer

Ask yourself: Why would I want to run that robot off my computer !!

The $50 Robot, like most robots, has an on-board micro-computer that runs the program you have downloaded from your PC.

If you insist on running code on your PC then you will face a potential bottleneck of having to send the info from all of your sensors to the PC and then sending the motor info back to the robot to make it move. So this communications link could be an issue - and not very cheap. How will you achieve it - via a wireless/bluetooth/RF link or are you planning on running after your robot, laptop in hand, with a ribbon cable connecting the two?

Its like when the client-server model of software came out. The client is the robot and the server is your laptop. Run all the easy, time sensitive stuff on your robot and off-load any program/data intensive stuff to your laptop. But. unless your doing some complex vision/path finding algorithm, then you would be better running everything on the robot itself. Welcome to micro-controllers and the $50 Robot as a starting point ! ;D
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Offline Farmerboy08Topic starter

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Re: Great Idea but need help
« Reply #4 on: December 20, 2008, 05:29:03 PM »
Quote
How would i run that robot off my computer

Ask yourself: Why would I want to run that robot off my computer !!

The $50 Robot, like most robots, has an on-board micro-computer that runs the program you have downloaded from your PC.

If you insist on running code on your PC then you will face a potential bottleneck of having to send the info from all of your sensors to the PC and then sending the motor info back to the robot to make it move. So this communications link could be an issue - and not very cheap. How will you achieve it - via a wireless/bluetooth/RF link or are you planning on running after your robot, laptop in hand, with a ribbon cable connecting the two?

Its like when the client-server model of software came out. The client is the robot and the server is your laptop. Run all the easy, time sensitive stuff on your robot and off-load any program/data intensive stuff to your laptop. But. unless your doing some complex vision/path finding algorithm, then you would be better running everything on the robot itself. Welcome to micro-controllers and the $50 Robot as a starting point ! ;D

I will have a cable runing from my computer to the bot i plan to have abot 100ft of cable. So can you give me advice or not

Offline Razor Concepts

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Re: Great Idea but need help
« Reply #5 on: December 20, 2008, 06:09:45 PM »
I think bluetooth would be easier and cheaper than using 100ft of cable  :-\

Offline Farmerboy08Topic starter

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Re: Great Idea but need help
« Reply #6 on: December 21, 2008, 08:42:41 AM »
I think bluetooth would be easier and cheaper than using 100ft of cable  :-\
How would i do something like that

Offline Razor Concepts

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Offline cooldog

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Offline Admin

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Re: Great Idea but need help
« Reply #9 on: January 26, 2009, 02:20:31 AM »
There is a good chance that your signal will degrade too much and won't work through 100ft of cable. Probably only half that, depending on the cable and your choice of signal.

Offline Soeren

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Re: Great Idea but need help
« Reply #10 on: January 26, 2009, 05:28:14 PM »
That part could be solved by using RS-485 drivers/receivers (or just the RS-232 equivalents), but whichever way it's PC-controlled it's no longer a robot, but just a ROV.
Regards,
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A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

 


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