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Hi, Has anyone tried using laser diodes for detecting objects? I would be interested in finding out how they were connected and how they are read by the controller board. I am also interested in finding out what would be best. I have been looking at (...) (28 years ago, 11-Dec-96, to lugnet.robotics.handyboard)
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| | Re: IR relectance Sensors
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(...) There may be a miscommunication here. There are IR Reflectance sensors, that are designed to note notches and bar codes and such, which have a sensing distance measured in millimeters, and there are IR receiver modules that were originally (...) (28 years ago, 10-Dec-96, to lugnet.robotics.handyboard)
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| | Re: ir obstacle detector
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In your message you said: (...) en bounce the IR off walls. yes, but the tv remote technology includes automatic gain circuits, so you have no way of telling HOW FAR AWAY the original signal source is. (...) ough? You can use a simple reflectance (...) (28 years ago, 10-Dec-96, to lugnet.robotics.handyboard)
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| | Re: ir obstacle detector
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Is this because you used a "bright" IR led? Or perhaps the frequency is high, thus higher energy EM radiation? (...) (28 years ago, 10-Dec-96, to lugnet.robotics.handyboard)
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| | Re: ir obstacle detector
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(...) Why is the distance do short? You can use a remote control for a TV or someting from really far away and even bounce the IR off walls. Doesn't that mean that you can do the same for a sensor? Or is it that the current generation of (...) (28 years ago, 10-Dec-96, to lugnet.robotics.handyboard)
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| | Re: IR relectance Sensors
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I don't have the Flynn book with me currently, but I coulda sworn that I read about the Rug Warrior (or some other robot) "wall following behavior". I thought that this was accomplished by IR obstacle detectors. I was also under the impresion that (...) (28 years ago, 10-Dec-96, to lugnet.robotics.handyboard)
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| | ir obstacle detector
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This is the number of Radio Shacks fax service. I had bought the IR detector module part number 267-137 and on the back it said "For a complete data sheet call Radio Shack FaxBack at 1-800-323-6586 and request document #3313. If you do not have a (...) (28 years ago, 9-Dec-96, to lugnet.robotics.handyboard)
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| | RE: IR relectance Sensors
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(...) I checked out the web page, not all the software is loaded up yet... Looks just like what I was about to ask for, I've gotta hook a 6811 to a Vector 2X via SPI as well. Last I reported on my project, I had fried the Handyboard. The problem was (...) (28 years ago, 9-Dec-96, to lugnet.robotics.handyboard)
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| | RE: IR relectance Sensors
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Where can we find this? (...) (28 years ago, 9-Dec-96, to lugnet.robotics.handyboard)
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| | Re: IR relectance Sensors
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Those reflectance sensors are not made for detecting objects, they are usually used in something like a shaft encoder. So the 5mm is the useful range that they will have for that application. Not too useful for object detection. Digikey (...) (28 years ago, 9-Dec-96, to lugnet.robotics.handyboard)
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