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Combination Lock Box
Building: Advanced
Program: Expert

This Combination Lock Box keeps the blue and red balls locked inside until you enter the correct combination using the dial wheel and Enter button, then it will unlock and open automatically.  The first time you run the program, it will ask you to set your combination of three numbers, then it will remember this combination even when the NXT is off and only open the box when the correct combination is entered.
 
Set your own combination. Enter a combination.

If you get the combination right, the box unlocks and opens itself automatically.

Video (YouTube) Video


Building Instructions

 

 

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2007-2011 by Dave Parker.  All rights reserved. 
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