Case 4 - Detection of Encoder Motor Shaft Angles

Case 4 - Detection of Encoder Motor Shaft Angles

 

Part 1   Objective

After you compile the program, the stage displays the angles the shaft of the encoder motor rotates in real time.

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Part 2   Preparation

  • MegaPi x 1

  • MegaPi encoder/DC motor driver x 1

  • MegaPi RJ25 adapter x 1

  • RJ25 cable x 1

  • Battery holder x 1

  • Photoelectric encoder motor 25mm x 1

  • Plastic wheel 90T x 1

  • Shaft connector 4mm x 1

  • Grub screw x 2

  • Encoder motor cable 25mm x 1

  • USB cable (Type-B) x 1

  • Computer with network access x 1

Install the MegaPi RJ25 adapter on MegaPi, connect the encoder motor to MegaPi by using the RJ25 cable, connect the battery holder to MegaPi, connect MegaPi to the computer by using the USB cable, open mBlock 5 (PC client, web version, or mobile app), click +add, select Ultimate 2.0 from Device Library, click Connect, and select the Live mode.

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Update the firmware of Ultimate.

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Part 3   Programming

In Live mode, you can create a variable to get the angle the shaft of the encoder motor rotates in real time.

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Part   4 Practice

Try to write a program to see the speed at which the shaft of the encoder motor rotates in real time.

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