Is this forum used for mindstorm nxt questions also

[Knoebel]

I am trying to control a ball grabber robot using NXT 1. My goal is to have the robot facing the same direction before searching for the second ball. The program I am testing with almost gets the robot back to the starting position, but not quite. The reason I am doing this is to take the balls to a drop off location. The code attached is just to test with, not the full program. It does not grab any balls.

[0utlaw]

Hello Knobel,

Yes, this is the correct forum for NXT questions, although you may want to consider posting here as well (http://messageboards.lego.com/en-US/showforum.aspx?ForumID=1042.)  Thank you for providing screenshots of your code, but it is a little difficult to determine what it does without notation; would you be able to provide the program for us look at directly?  It would also help a lot if you could describe how you are getting the robot to move and return to the same position (e.g. motor on timing, motor position, sensor-determined location, etc.) as well as what you mean by "almost gets the robot back"- what sort of positional shift are you seeing?

Regards,

[James4521]

I need help with a light sensor

[Whit-E_Wall-E]

Hello,

There are a lot of resources online and in the software that can help with example code for the different sensors.

This website offers a lot of valuable information regarding the programming.  It also has examples in the different programming languages you can use.

http://www.legoengineering.com/programming.html

They also have Quick Guides to Programming that show very simple code and explanations.  There is a basic example written in the guide specific to the light sensor.

http://legoengineering.com/quick-guides-to-programming.html

There are also examples for different builds and programming guides in the ROBO Center on the right of the screen when you open the NXT Mindstorm software.