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Interactive Servo Motor NXT


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£ 21.99
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Quick Overview

This servo motor with in-built rotation sensor measures exact speed and distance and reports the information back to the NXT brick.


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If you use the Move block in the LEGO MINDSTORMS NXT software to program your motors, the two motors will automatically synchronize, so that your robot will move in a straight line.

- Built-in Rotation Sensor
- Each motor has a built-in Rotation Sensor. - This lets you control your robot's movements precisely.
- The Rotation Sensor measures motor rotations in degrees or full rotations [accuracy of +/- one degree].
- One rotation is equal to 360 degrees, so if you set a motor to turn 180 degrees, its output shaft will make half a turn.

The built-in Rotation Sensor in each motor also lets you set different speeds for your motors [by setting different power parameters in the software]. Try running the motors at different speeds.

Test it! Test the built-in Rotation Sensor's ability to measure distance:


1. Connect a motor to the NXT
2. Select the VIEW submenu on the NXT
3. Select the Motor Rotations icon.
4. Select the port where you have connected the motor
5. Attach a wheel to the motor and measure the rotations as you roll the wheel along the floor

Try Me

The NXT comes with a Try Me function. Select the Try Me submenu on the NXT display and test your motors. You'll get a fun reaction.
Name Interactive Servo Motor NXT
More Features:
  • - Allows for motor control within one degree of accuracy
  • - Several motors can be aligned to drive at the same speed
  • - Suitable for Key Stages 2, 3 & 4
  • - LEGO part no. 9842
Relevant Age Group Good for 8+
Price £ 21.99
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