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    Case 1 - Detect the distance with the ultrasonic sensor

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    Makeblock Technical Support Team

    Part 1   Objective

    After you compile the program, the stage displays the distance detected by the ultrasonic sensor in real time.

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    Part 2   Preparation

    • MegaPi x 1

    • MegaPi RJ25 adapter x 1

    • Ultrasonic sensor x 1

    • RJ25 cable x 1

    • USB cable (Type-B) x 1

    • Computer with network access x 1

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

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    Update the firmware of Ultimate 2.0.

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    Part 3   Programming

    In Live mode, after you select the check box on the left of the ultrasonic sensor port 6 distance (cm) block, the stage displays the distance detected by the ultrasonic sensor in real time.

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    Part 4   Practice

    Change the distance output value by changing the distance between the ultrasonic sensor and the obstacle. The distance is detected and displayed on mBlock 5.
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