Author Topic: Sensors: Stay on sidewalk, don't go on grass  (Read 962 times)

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Offline offyTopic starter

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Sensors: Stay on sidewalk, don't go on grass
« on: March 08, 2010, 11:03:13 PM »
I'm working on a new robot project. I used color tracking and it kept the robot aligned, but I don't want a laptop on it now. I need it to stay on the sidewalk. I was thinking of the line following concept and think it might work. Advice? - Budget is low.


-Thanks, Offy

Offline SmAsH

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Re: Sensors: Stay on sidewalk, don't go on grass
« Reply #1 on: March 08, 2010, 11:32:40 PM »
Line following could work, just have some overhand of your wheels and put the sensors there, then program it to move left if the right sensor detects grass etc...
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Offline offyTopic starter

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Re: Sensors: Stay on sidewalk, don't go on grass
« Reply #2 on: March 09, 2010, 03:07:49 PM »
Ok, thanks SMaSH. Does anyone have another idea?

Offline little-c

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Re: Sensors: Stay on sidewalk, don't go on grass
« Reply #3 on: March 09, 2010, 03:13:55 PM »
buy a really cheep old laptop off ebay and use that? an old IBM thinkpad, strip it out of its casing, ditch the cd drive and floppy drive, thin out frames and stuff, stick on robot?

basicly your looking at 30-50 quid tops.

Offline Razor Concepts

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Re: Sensors: Stay on sidewalk, don't go on grass
« Reply #4 on: March 09, 2010, 04:17:08 PM »
use a color sensor

Offline offyTopic starter

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Re: Sensors: Stay on sidewalk, don't go on grass
« Reply #5 on: March 09, 2010, 04:29:30 PM »
Links and Product Numbers/Names would be helpful.

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Offline Canabots

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Re: Sensors: Stay on sidewalk, don't go on grass
« Reply #6 on: March 09, 2010, 06:38:04 PM »
Colour Sensor? http://www.robotshop.ca/parallax-color-sensor-tcs230-db.html

Something maybe to read about if you are a little tighter on budget, or want a simpler solution for the moment: http://robotroom.com/ColorSensor.html

I want to see some progress on this robot!  :P

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Offline offyTopic starter

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Re: Sensors: Stay on sidewalk, don't go on grass
« Reply #7 on: March 09, 2010, 09:07:12 PM »
Here is a color sensor I found. A lot cheaper. $20.

http://www.robotshop.com/parallax-colorpal-color-and-light-sensor.html

I found a $50 UART JPEG camera. I might use this, even though its only 1fps.
http://www.seeedstudio.com/depot/uart-camera-module-with-jpeg-compression-c328-p-209.html?cPath=6

I will keep everyone updated. I will probably record tomorrow with me controlling robot via bluetooth.
« Last Edit: March 10, 2010, 08:20:39 AM by offy »

 


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