The Stalker 'Bot

By Tzofi Klinghoffer
Category: Arduino, Robotics
Time Required: 3 hours
Difficulty: Moderate

Gather the parts and follow the basic instructions and you can have a robot capable of following moving objects! With basic coding experience, you can also change the distance at which the robot senses moving objects or the speed the robot moves.

In order to do this project, a basic robot must be built that runs off of two 3-wire VEX servos. A good robot to build is the VEX Squarebot. Instructions for building this can be found under the Files section of this project or with any VEX robotics kit.

Steps

Step #1: Attaching the Ultrasonic Sensors

Attach the ultrasonic sensors to the front of the robot side by side
Use two screws per ultrasonic sensor, putting nuts on the back to hold the sensor onto the robot
Use an allen wrench to spin the screws in
Make sure the ultrasonic sensors are facing up with the VEX lettering on the bottom
By adjusting the distance between the sensors, you can adjust how big of an object the robot will follow (a larger distance follows a larger object)

Conclusion

After completing this project, you will now have a functioning stalker 'bot! To adjust the distance that it senses objects from, edit the inch values in the Robot Control if loops in the program.

3 Responses to The Stalker ‘Bot

Natalie Dennis on March 27th, 2013 at 5:45 am said:

where is the files section? i wanna make this for my electronics class.

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Charley on May 10th, 2013 at 11:24 am said:

I am actually wondering the same thing as Natalie Dennis. Where are the “files section” files that he mentions? Does this have to do with Make moving to a new web platform for their projects?

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Eric on June 17th, 2013 at 12:40 pm said:

Does anyone know if there is a kit that i can buy to make this so that i don’t have to buy the parts from different places?

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