Mindboards

You are correct the NXT-G has the limitation that you cannot run two copies of the same MyBlock in parallel. You have already found the simplest way to deal with this; just create a copy of the original MyBlock with a new name. Then use the two different MyBlocks on parallel beams.

Terry Griffin

When I first started using MLCad I followed the instructions at http://nxtblog.davidjperdue.com/2008/01 ... xt-robots/. This should get you all the NXT parts, including the one you're looking for.

Terry Griffin

No Starch Press, along with O'Reilly and Tidbits, are helping to support the Japanese relief effort, details at http://blog.makezine.com/archive/2011/0 ... elief.html. If you were planning on getting one of No Starch's NXT books this would be a good time.

Terry Griffin

This seems like a very interesting but fairly difficult challenge. If I understand your description correctly, you don't know how many lines there are, or the spacing, and the spacing is not consistent. Given these conditions, I think you have to work out an algorithm that will get you close to the ...

Hi Matt, To increase the contrast between the black square and the background you can try mounting the sensor very close to the floor. This helps it detect more of the reflected light. With the Color Sensor you can pick which light to use (Red, Green, or Blue). Try each one and see what gives you th...

Hi Matt, 1. To make the loop repeat a certain number of times you should set the Control item to Count. Once you do that a box will appear that lets you enter the number of times to repeat. The Show Counter check box just adds a data hub which you can use if you want to do some calculations involvin...