PROPORTIONAL ULTRASONIC - PowerPoint Presentation

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Uploaded On 2018-03-10

PROPORTIONAL ULTRASONIC - PPT Presentation

WALL FOLLOWER 2015 EV3Lessonscom Last edit 11172015 Learn how to use proportional control with the ultrasonic sensor to follow walls Prerequisites Data Wires Proportional Control Loops Math Blocks Sensor Blocks ID: 645913

ev3lessons 2015 ultrasonic proportional 2015 ev3lessons proportional ultrasonic wall edit follower error challenge control sensor step robot seshan move steering blocks

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Slide1

PROPORTIONAL ULTRASONIC WALL FOLLOWER

Learn how to use proportional control with the ultrasonic sensor to follow wallsPrerequisites: Data Wires, Proportional Control, Loops, Math Blocks, Sensor Blocks

Objectives

Challenge: Proportional Wall Follower

Challenge:

Write a wall follower program that uses the ultrasonic sensor and proportional control

STEP 1:

(Calculate the error) Subtract the target distance from the Ultrasonic value.

STEP 2:

(Apply the correction) Use the error from the previous step as the steering in a Move Steering block.

You may need to multiply the error by a magic number to make your robot smootherSTEP 3: Repeat the above steps in a loop

Play the video to see how the robot should move

Do you notice any differences from the wall followers in the Intermediate Ultrasonic Wall Follower Lesson?

Challenge SolutionSlide5