Answers.Body: <p>It sounds like you want to use the Ultrasonic sensor as a revolving radar dish. This is definitely possible. Note that because of the wire, you probably want the sensor to pan back and forth rather than go around in complete circles. Here's an example of what this could look like:</p>
  
  <p><img src="https://i.sstatic.net/gRHMW.jpg" alt="NXT Radar"></p>
  
  <p>There are building instructions for this project available here:</p>
  
  <p><a href="http://www.nxtprograms.com/radar/" rel="nofollow noreferrer">http://www.nxtprograms.com/radar/</a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-10-19T04:31:20.273Z
Answers.Text: I did build this radar but find it quite limiting. The vertical brick was too long, hence unstable and the wire got twisted around it.
  One more thing, it can't be adapted onto a car.
Answers.UserDisplayName: Nguyễn Trọng Tùng
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-02-20T20:39:45.910Z
Answers.Text: Just to be clear, do you mean a full scale car or a LEGO car?
Answers.UserDisplayName: Ambo100
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-10-17T16:35:03.570Z
Answers.LastActivityDate: 2013-10-17T16:35:03.570Z
Answers.UserDisplayName: jncraton
Body: <p>Mapping and localization are the hottest trends in robotics today. And what's more exciting is they can be both implemented with a low-cost robotics kit like LEGO Mindstorms!</p>
  
  <p>I tried to make a self-driving car, after Google's famous car, but I got stuck on the mechanical side of things. I can't figure out how to build a revolving ultrasonic sensor on top of the robot, in order to do mapping and localization.</p>
  
  <p>Any help is highly appreciated!</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2014-07-21T02:59:11.683Z
Comments.Text: I suggest you use other methods of ultrasound, like a few ultrasound sensors. A revolving ultrasound is very difficult due to the wire
Comments.UserDisplayName: J_W
Tags: <mindstorms><nxt><building>
Title: Does anyone make a self-driving car?
UserDisplayName: Nguyễn Trọng Tùng
ThreadText: # Does anyone make a self-driving car?
  
  (Asked by: username_0 on 2013-10-17)
  
  Mapping and localization are the hottest trends in robotics today. And what's more exciting is they can be both implemented with a low-cost robotics kit like LEGO Mindstorms!
  
  I tried to make a self-driving car, after Google's famous car, but I got stuck on the mechanical side of things. I can't figure out how to build a revolving ultrasonic sensor on top of the robot, in order to do mapping and localization.
  
  Any help is highly appreciated!
  
  **Tags:** mindstorms, nxt, building
  
  > **Comments:**
  > **username_1**: I suggest you use other methods of ultrasound, like a few ultrasound sensors. A revolving ultrasound is very difficult due to the wire  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2013-10-17. Score: 5
  
  It sounds like you want to use the Ultrasonic sensor as a revolving radar dish. This is definitely possible. Note that because of the wire, you probably want the sensor to pan back and forth rather than go around in complete circles. Here's an example of what this could look like:
  
  ![NXT Radar](https://i.sstatic.net/gRHMW.jpg)
  
  There are building instructions for this project available here:
  
  <http://www.nxtprograms.com/radar/>
  
  > **Comments:**
  > **username_0**: I did build this radar but find it quite limiting. The vertical brick was too long, hence unstable and the wire got twisted around it. One more thing, it can't be adapted onto a car.  
  > **username_3**: Just to be clear, do you mean a full scale car or a LEGO car?  
  
  ---
  
  