Background

These instructions describe how to build a sumo robot with a color sensor for detecting the line and two bumpers with individual touch sensors. These instructions require only parts found in the standard EV3 education core set.

Building Instructions

Motor Module

First Motor Assembly

01
02
03
04
05
06
07
08
09
10
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12

Second Motor Assembly

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

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19

Rear Skid Assembly

20
21
22
23
24
25
26
27

Bumper Assembly

First Bumper Assembly

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31
32

Second Bumper Assembly

Build a second front bumper as a mirror image of the first.

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41

Touch Sensor Module

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45

Second Touch Sensor

Build a second touch sensor module as a mirror image of the first.

Light Sensor Module

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49

Complete Assembly

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62

Connect the left touch sensor to port 1 and the right touch sensor to port 2. Note that the wires cross underneath the EV3 brick.

63

Connect the left motor to port C and the right motor to port B.

64

Congratulations

You have completed your EV3 sumo robot.