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Mindstorms color sensor using RobotC
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kelsowatsey
Rookie
Joined: Tue May 22, 2012 7:47 am Posts: 5
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 Mindstorms color sensor using RobotC
I used the below code to detect whether or not a ball is red blue green etc. But everytime i run it on the nxt block it continues to show this "???". I need help, i dont see were the code could have gone wrong.
#pragma config(Sensor, S1, colorport, sensorCOLORFULL) //*!!Code automatically generated by 'ROBOTC' configuration wizard !!*//
task main() { string sColor;
while (true) { switch (SensorValue[colorport]) { case 0: sColor = "Black"; break; case 2: sColor = "Blue"; break; case 4: sColor = "Green"; break; case 6: sColor = "Yellow"; break; case 8: sColor = "Red"; break; case 17: sColor = "White"; break; default: sColor = "???"; break; } nxtDisplayCenteredTextLine(2, sColor); wait1Msec(50); } }
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Tue May 22, 2012 7:52 am |
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NeXT-Generation
Senior Roboticist
Joined: Wed Sep 28, 2011 10:13 pm Posts: 630 Location: If I told you, I'd have to kill you.
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 Re: Mindstorms color sensor using RobotC
You're using the LEGO Color Sensor, not HiTechnic, right? If so, then your values are all wrong. Here: Also, you never defined "colorport". The line at the top does that. Replace the "S1" in it with whichever port your sensor is plugged into. i.e. S2 for port two, S3 for port three, etc.
_________________A.K.A. inxt-generation Self-proclaimed genius, and future world dominator. My Brickshelf Folder"Don't they teach recreational mathematics anymore?" - The Tenth Doctor Bow down to Nikola Tesla, King of the Geek Gods.
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Tue May 22, 2012 8:45 am |
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kelsowatsey
Rookie
Joined: Tue May 22, 2012 7:47 am Posts: 5
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 Re: Mindstorms color sensor using RobotC
Thanks, i am currently in a differend class right now but i will try it out tomorrow. My teacher did get the sensor from the hitechnic website. I got this code from a moderator on a website called bot bench. heres the link to it. http://botbench.com/blog/2011/02/16/rob ... ur-sensor/ -Kelso
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Tue May 22, 2012 11:48 am |
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mightor
Site Admin
Joined: Wed Mar 05, 2008 8:14 am Posts: 3654 Location: Rotterdam, The Netherlands
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 Re: Mindstorms color sensor using RobotC
That code is for the LEGO Colour Sensor, not the HiTechnic Colour Sensor. You're going to want to check out HTCS2-test*.c examples that come with the driver suite. More info on the suite itself and how to get it working, etc, can be found on the same site you got this example from: http://botbench.com/blog/robotc-driver-suite/- Xander
_________________| Professional Conduit of Reasonableness| (Title bestowed upon on the 8th day of November, 2013) | My Blog: I'd Rather Be Building Robots| ROBOTC 3rd Party Driver Suite: [ Project Page]
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Tue May 22, 2012 12:06 pm |
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kelsowatsey
Rookie
Joined: Tue May 22, 2012 7:47 am Posts: 5
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 Re: Mindstorms color sensor using RobotC
Ok thanks, ill check it out. -Kelso
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Tue May 22, 2012 12:10 pm |
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kelsowatsey
Rookie
Joined: Tue May 22, 2012 7:47 am Posts: 5
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 Re: Mindstorms color sensor using RobotC
Ok, the driver tests work great, but now i need to add motor commands. So when it senses a green it does one thing and when it senses a red it does another. how would i go about doing that with the sample code? A fellow classmate used code similar to the above code posted and included his motor commands inbetween the color and break section for each color, but since that is not in the sample code i dont know how id go about doing that.
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Wed May 23, 2012 7:49 am |
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mightor
Site Admin
Joined: Wed Mar 05, 2008 8:14 am Posts: 3654 Location: Rotterdam, The Netherlands
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 Re: Mindstorms color sensor using RobotC
Looks like you have some learning to do! Go check out the curriculum on the robotc website and also check out the tutorial you can find here: http://botbench.com/blog/2009/05/14/robotc-tutorial/- Xander
_________________| Professional Conduit of Reasonableness| (Title bestowed upon on the 8th day of November, 2013) | My Blog: I'd Rather Be Building Robots| ROBOTC 3rd Party Driver Suite: [ Project Page]
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Wed May 23, 2012 8:51 am |
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kelsowatsey
Rookie
Joined: Tue May 22, 2012 7:47 am Posts: 5
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 Re: Mindstorms color sensor using RobotC
Ok, ill check that out, thanks for the help.
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Thu May 24, 2012 7:20 am |
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roboRed
Expert
Joined: Fri Nov 02, 2012 12:07 am Posts: 163 Location: California, USA
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 Re: Mindstorms color sensor using RobotC
Hey Guys, Sorry for interrupting the fun, but I have a burning question that has to be answered. Can RobotC use the "Lamp" feature of the lego color sensor like NXT - G? Thanks, Neil P.S. I am new to the site posting.php?mode=reply&f=1&t=4571#posting.php?mode=reply&f=1&t=4571#
_________________ string Robored = "Awesome" ~~Neil Balch~~
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Sat Nov 10, 2012 12:27 am |
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BManCan
Rookie
Joined: Sat Nov 10, 2012 3:55 pm Posts: 1
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 Re: Mindstorms color sensor using RobotC
Check out the following blog at bot bench.com At the very end of the comments Xander describes the code required to use lamp mode with the colour sensor. http://botbench.com/blog/2011/02/16/robotc-using-the-nxt-2-0-colour-sensor/BManCan
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Sun Nov 11, 2012 3:42 pm |
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roboRed
Expert
Joined: Fri Nov 02, 2012 12:07 am Posts: 163 Location: California, USA
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 Re: Mindstorms color sensor using RobotC
Thanks, Man
_________________ string Robored = "Awesome" ~~Neil Balch~~
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Sun Nov 11, 2012 6:12 pm |
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