Background

These instructions describe how to build a balancing robot with a color sensor for detecting the line and gyro sensor for calculating balance. These instructions require only parts found in the standard EV3 education core set.

Building Instructions

Motor Module

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02
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10

Build a second motor assembly as a mirror image of the first.

Light Sensor Module

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Gyro Sensor Module

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Connector Bar Assembly

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23

Build two of these button assemblies.

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25

Complete Assembly

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Attach the connector bar with 4 red pins.

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Plug the left motor into motor port C. Plug the right motor into motor port B.

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Plug the gyro sensor into sensor port 4.

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Plug the color sensor into sensor port 3.

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Optional: secure the sensor wires away from the rotating wheels with a 3-rail and two blue pins.

38

Congratulations

You have completed your EV3 balancer robot.

A printable template for a paper wrapper for this robot can be found here. When printed on colored card stock, this wrapper can be used to enable color based visual location tracking of the robot.