1. Echo locator

    Echo locator

    How could you build a device that uses sound to indicate the distance to the nearest object? For example, as an aid for a person with vision impairment. Other than using the Ultrasound Sensor, are there any other sensors that could be used to measure distance? Resources Echo Locator lesson...

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  2. Third-party sensors: Code examples

    Third-party sensors: Code examples

    Here is a collection of code examples for third party sensors. Codatex Download Codatex code examples (ZIP) including: RFID read NXT-G – This code will use the Codatex RFID sensor to find the correct RFID tag. Once the RFID sensor finds the correct tag, it will make a sound and the...

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  3. 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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  4. 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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  5. NXT sensors

    NXT sensors

    Touch Sensor The Touch Sensor gives your robot a sense of touch. The Touch Sensor detects when it is being pressed by something and when it is released again. Suggestions: You can use the Touch Sensor to make your robot pick up things: a robotic arm equipped with a Touch...

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