PING))) sensor questions
Philldapill
Posts: 1,283
I've been wanting to get a PING sensor and play with it for some time now.
First, when in the parallax store, in the list of sensors, it says low stock and 19 remaining. When I view the PING))) page, it says out of stock. What gives?
Secondly, what kind of resolution can you get from one of these things and how accurate are they?
This probably sounds like suicide, but I like riding my bike behind 18-wheelers... Fantastic gas mileage! [noparse];)[/noparse]
Eventually, I'd like to make a controller that I could possible tie into my throttle with a servo. The controller would use a PING))) to sense the distance behind the 18 wheeler, and basically act as cruise control, keeping me a set distance behind. When I hit the brakes, of course, it would deactivate. I know, it's a little dangerous but at least the project would be fun... Would the sensor work for this? I'm thinking riding 8 feet behind or so...
First, when in the parallax store, in the list of sensors, it says low stock and 19 remaining. When I view the PING))) page, it says out of stock. What gives?
Secondly, what kind of resolution can you get from one of these things and how accurate are they?
This probably sounds like suicide, but I like riding my bike behind 18-wheelers... Fantastic gas mileage! [noparse];)[/noparse]
Eventually, I'd like to make a controller that I could possible tie into my throttle with a servo. The controller would use a PING))) to sense the distance behind the 18 wheeler, and basically act as cruise control, keeping me a set distance behind. When I hit the brakes, of course, it would deactivate. I know, it's a little dangerous but at least the project would be fun... Would the sensor work for this? I'm thinking riding 8 feet behind or so...
Comments
Unfortunately the PING))) sensor has a limited range (~3 meters). I would not recommend riding that close, but on top of that, in an emergency there is no time to react. A friend and I developed a sonar-assisted cruise control for an R/C car back in college, but we also knew the limitations of the sonar devices. Modern vehicles are starting to include radar cruise control which does essentially the same thing except with more range.
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Chris Savage
Parallax Tech Support
Post Edited (Chris Savage (Parallax)) : 7/2/2008 8:59:31 PM GMT
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Chris Savage
Parallax Tech Support
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·- Was it pin 11 or 26?· Hmmm....··I think the smell of smoke tells the whole story.· Must be 26.
Michael King
Application Engineer
R&D
Digital Technology Group