Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: Farmerboy08 on December 16, 2008, 05:15:42 PM

Title: Great Idea but need help
Post by: Farmerboy08 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.
Title: Re: Great Idea but need help
Post by: Lefteris 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)
Title: Re: Great Idea but need help
Post by: Farmerboy08 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??
Title: Re: Great Idea but need help
Post by: Webbot 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
Title: Re: Great Idea but need help
Post by: Farmerboy08 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
Title: Re: Great Idea but need help
Post by: Razor Concepts on December 20, 2008, 06:09:45 PM
I think bluetooth would be easier and cheaper than using 100ft of cable  :-\
Title: Re: Great Idea but need help
Post by: Farmerboy08 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
Title: Re: Great Idea but need help
Post by: Razor Concepts on December 21, 2008, 10:53:38 AM
http://narobo.com/projects/electronics/bluetooth_lights/bluetooth_lights.html
Title: Re: Great Idea but need help
Post by: cooldog on December 21, 2008, 11:10:57 AM
http://www.societyofrobots.com/electronics_bluetooth_robot.shtml
Title: Re: Great Idea but need help
Post by: Admin 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.
Title: Re: Great Idea but need help
Post by: Soeren 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.