1. Light theremin

    Light theremin

    In this activity, use an NXT brick equipped with two light sensors to emulate a theremin. One sensor will change pitch as the amount of light sensed changes, and the other sensor will change volume as the amount of light sensed changes. The theremin is meant to be controlled with the...

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  2. Rotation sensor challenge

    Rotation sensor challenge

    Rotation sensors are very important in the field of engineering because they track and measure the motion of rotating objects. The NXT motors and EV3 large motors have built- in rotation sensors that are accurate enough for most purposes, but what if you need something even more accurate? How can...

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  3. Capture the wind

    Capture the wind

    How could you design and construct a windmill connected to a rotation sensor to measure the speed of the wind?    Tip 1: Even though they can be used as rotation sensors, the NXT motor and the EV3 large motor will not work as well as an RCX Rotation Sensor...

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  4. Pendulum mathematics

    Pendulum mathematics

    Pendulums are one of the earliest machines we see and Physics courses can take advantage of that familiarity to reveal fundamental principles and demonstrate the mathematical relationships. In this demonstration, I suspended an NXT with three sensors from above, and let it swing back and forth, recording the data via...

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