Personal (IR) Radar

posted Feb 8th 2008 11:45pm by Will O'Brien
filed under: misc hacks

[chris] sent in this inexpensive personal radar project. It uses a servo mounted IR range finder to locate and display the distance to an object. (Lake a parked car as shown in the demo video) The project is destined for some robotics projects – and who doesn’t love LED display proximity sensors. It makes me think of the direction finders in every other 80’s action movie. It’s gotten some attention on Digg, but I like it for the inexpensive build and the excellent use of a PIC 18F452.

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Since it doesn’t use radio waves you can’t really classify it as “radar”.

Posted at 3:07 am on Feb 9th, 2008 by Lambda_drive

“Lidar” then. I think that’s the term for it. But it looks really cool.

Posted at 8:13 am on Feb 9th, 2008 by Skyler Orlando

Hello. I have done exactly the same, about one year ago and altough the name LIDAR (light detecting and ranging) was the same !!! It was based upon Pic16F628 but using a stepper motor, not a RC servo. I suggest to mount the sensor in the vertical way, because is much more accurate if you span horizontal way (see the sensor PDF). If you want take a look to the picture of my lidar version, this is the address: http://www.robotop.biz/images/lidar.jpg

Posted at 10:04 am on Feb 9th, 2008 by Emilio Ficara

It’s really not lidar either :) Instead of timing the light’s reflection, it uses an infrared led and a long ir sensor behind a plastic aperture to measure the distance as a triangle.

Posted at 10:07 am on Feb 9th, 2008 by forrest voight

Anyone recommend a place to purchase these IR modules? I dont think Digikey or mouser has them :-(

Posted at 12:40 pm on Feb 9th, 2008 by Chupa

nm, digikey has a whole bunch of them.

Posted at 12:46 pm on Feb 9th, 2008 by Chupa

That was a horrible demo in the vehicle.

Posted at 2:30 pm on Feb 9th, 2008 by BigD145

“Lake a parked” rather “Like a parked”

Posted at 5:11 pm on Feb 9th, 2008 by Ben

In the second part of the video, I thought it was going to be a zombie attack!

Posted at 5:58 pm on Feb 9th, 2008 by Earl Jr.

Yeah, lake a parked car, that kind of sounds fun.

This project is EXACTLY what I was planning on doing with my fadora and a heads up display. Thank you [chris]

Posted at 5:21 pm on Feb 10th, 2008 by Bruno

would be cool to have it send data to a computer remotely

Posted at 12:28 pm on Feb 12th, 2008 by CyanFlux

“Lake a Parked Car”. Essentially this involves becoming God, picking up a lake, and then dropping it over some poor guys (put in favorite supercar).
I like this kind of crazy project.

Posted at 4:11 pm on Feb 13th, 2008 by somedude

Personal (IR) Radar

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