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I'm trying to set up either one or preferably two near infra red proximity detectors. I'm wondering whether the sharp IS1U60L component mounted on the handy-board is suitable for this type of application. We managed to make it work recieving codes (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | RE: Retrieving data from the handyboard
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Interactive C can't handle 2D or 3D arrays.... instead another method needs to be used.. If your matrix was a 3X3 789 456 123 and rows went from bottom to top and columns from left to right then you'd have to come up with a formula using the row and (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IR proximity detectors
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Andrew - - Take a look at Dennis' IRPD ... it uses a 12C508, 2 IR LEDs and a Sharp detector ... works great with the HandyBoard and off loads much of the processing to the PIC. If you want to do it with the HB, then do a search on IRPD and you'll (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: LEGO robotics dis'd in CACM Forum.
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Tilman Sporkert <lego-robotics@crynwr.com> wrote in message news:NCBBKPAJLICLDDA...esw.com... <snip> (...) Check (URL). <snip> -- et (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | IR question
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hello all, quick question- inside the Handy Board Tech. Ref. we saw two IR sensors mentioned (Quality Tech. QRD 1114 & QRB 1114). we are wondering if anyone has used these sensors and knows how to obtain them? we have contacted our HB vendor, but (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: IR proximity detectors
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you won't be able to easily) get distance measures with standard IR comms parts (such as the IS1u60). light travels too fast for the time delay betw xmit and rcv to tell you anything. as a proximity sensor, all you get is a yes/no reading. if you (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: RCX Controlled Air Compressor Tester
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I have some of the original pneumatic cylinders with only one inlet. They have been used for various non Lego uses. While coming back from the dark ages, I have discovered that all three still work once they have been pumped once by had. They can (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: RCX Controlled Air Compressor Tester
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(...) But do you reckon the seals are the same? They may use different material now... BTW, does anyone have any good uses for the old cylinders? They are pretty feeble when pulling (ie relying on "vacuum"), and seem (IMO) to be less well-built than (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: RCX Controlled Air Compressor Tester
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I'm using one of my old cylinders for my cut-off pressure switch. This only uses one of the inlets any way. They are OK for once only trigger events. They can also be used to transfer motion from one place to another by simply connecting two with (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: IR proximity detectors
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(...) [snip] Andrew, Take a peek at (URL) and bonk on the IRPD project. Getting IR demodulators to work reliably is a bit more tricky that just looking for a bounce. I have done a LOT of work in that area and have found that you really need to take (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | Re: NQC 2.0.1, MacNQC 2.0 b2 released
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(...) Dave, Does this one fix the bug when dealing with the Faralon USB to serial port adaptor on the newer Macs? just asking... DLC (26 years ago, 7-Oct-99, to lugnet.robotics.rcx.nqc)
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| | Re: NQC 2.0.1, MacNQC 2.0 b2 released
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(...) Dave, Oops, I meant Keyspan, I see it does, I should have read before I wrote. thanks for the effort! DLC (26 years ago, 7-Oct-99, to lugnet.robotics.rcx.nqc)
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| | Lego for real research
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I was interested to note the sad comments about Lego being just a toy! I am also a professional engineer, of 25 years standing, who enjoys recreational Lego. RIS is one of the more significant steps toward accessible home robotics in recent years. I (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: Lego for real research
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(...) In an important series I took as part of my computer science degree at the University of Utah, we did group projects simulating industry (requirements, design phase, etc....) which turned out products which were robots and scanners and such of (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: Lego for real research
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John Barnes wrote in message <3.0.32.199910071132...server>... (...) John: I am a Mechanical with 11 years, and my wife is an Electrical with 15 years experience. Between our Lego habits, and our poor "doomed to be a nerd" 3-1/2 year old, Lego does (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | 180° IR Eyeball
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Look at www.robotbuilder.com . Go to lego projects and look at the forums. There is a message saying something about a IR Eyeball. It sounds pretty interesting, but his istructions are sort of complicated to understand. If someone could deipher the (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | RE: 180° IR Eyeball
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hmm.. Did you mean (URL) ? -----Original Message----- From: Andy Gombos [mailto:gombos@ne.infi.net] Sent: Thursday, October 07, 1999 10:51 AM To: Lego Mailing List Subject: 180° IR Eyeball Look at www.robotbuilder.com . Go to lego projects and look (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | Re: 180° IR Eyeball
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(...) Yeah. That is what it copied as, and I didn't bother to check it. (26 years ago, 7-Oct-99, to lugnet.robotics)
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| | More IR proximity detectors
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We're trying to use the little radio shack IR transmitter and reciever units to build our own. We're not sure exactly how this will work, but before we get too far, is this a reasonable thing to do? Will these be strong enough to use as proximity (...) (26 years ago, 7-Oct-99, to lugnet.robotics.handyboard)
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| | RE: 180° IR Eyeball
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I believe there is a problem with the theory used in the article. He talks about using the Radio Shack emitter/detectors to do some 180 deg Detection. He's talking about using multiple emitters and detectors as proximity detectors. (much like using (...) (26 years ago, 7-Oct-99, to lugnet.robotics)
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