1. The stubborn car

    The stubborn car

    Think of a way to design and construct the stubborn car: a car that will always return to its original place no matter how far it is rolled away from its starting point. Tip: How can you track the rotary motion of the car’s wheels? This challenge provides...

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  2. Ultrasonic touch guitar

    Ultrasonic touch guitar

    The idea of this radical challenge is to use the ultrasonic sensor, touch sensors, and buttons on the NXT to create a guitar. The ultrasonic sensor can control the pitch of the note based on the location of the user’s hand, and the touch sensors can control other...

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  3. Sound display

    Sound display

    The idea of this challenge is to collect and display sound data from the NXT sound sensor in real time on the LCD display of the NXT. You could include the ability to pause data collection by bumping a button to “freeze” a particular screen of the data...

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  4. NXT building tips

    NXT building tips

    NXT Building Tips is a brief PDF guide to tips and tricks for building with the LEGO NXT, including: Basic LEGO brick stacking Using pegs to connect beams Connecting beams using axles and bushings Constructing sturdy shapes Attaching a wheel to a motor so that the motor turns...

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  5. 9797 NXT basic car instructions

    9797 NXT basic car instructions

    This is a very basic NXT vehicle. It is made exclusively of pieces from the 9797 NXT Education kit. This car was designed to be built very quickly so that it could be used in workshop settings or one-time events.  This car was created to maximize the time...

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