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 | | Re: IR Proximity Detection Problem
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| Maybe the ambient light is too high ? in that case you can decrease visible light sensitivity as well as shielding detector from red LED light using this method : (URL) (only hope that this doesn't offend your "Lego purity" sense ;o) Philo (...) (22 years ago, 16-Jan-03, to lugnet.robotics.rcx)
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ir
(score: 1.398)
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| | Re: IR Proximity Detection Problem
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| (...) A friend of mine attempted this setup a while back and came to the conclusion that he basically needed to be nearly perfectly perpendicular to the object he was trying to detect. So he decided this was way to precise/finicky for his general (...) (22 years ago, 17-Jan-03, to lugnet.robotics.rcx)
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ir
(score: 1.398)
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tower
(score: 1.398)
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| | Re: IR Proximity Detection Problem
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| Dean, Philo, Thank you both very much: Including the sensor monitoring in a "repeat"-loop brouhgt the solution. Works quite perfect. I guess "SendMessage" is somewhat slow, i. e. the IR-emission/reflection. Now I am going to even improve the (...) (22 years ago, 17-Jan-03, to lugnet.robotics.rcx)
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ir
(score: 1.398)
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| | Re: IR Proximity Detection Problem
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| (...) Dirk, I had a similar problem when I first tried, eventually determining that I wasn't measuring the light sensor value while the message was being sent. You have to wait a little bit after sending the message before reading the peak light (...) (22 years ago, 16-Jan-03, to lugnet.robotics.rcx)
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ir
(score: 1.398)
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range
(score: 1.398)
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usb
(score: 1.397)
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| | LNPD problem
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| Hi there, I still don't manage to send any packages from the rcx to the PC. I attached the client and the "receiver program" and here is a fragment of the lnpd log: 148032:Client > connection 1 from host 127.0.0.1, port 33485 148039:Logical > (...) (22 years ago, 3-Dec-02, to lugnet.robotics.rcx)
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range
(score: 1.397)
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ir
(score: 1.396)
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usb
(score: 1.396)
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ir
(score: 1.395)
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ir
(score: 1.395)
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| | IR header how optional
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| (...) Yep. But via our solid new reply framing code, thanks again, now I can see ... (...) Nope. At least not here: now that I look, I see my RCX often doesn't require the PC to send x 55:FF:00. IR command packets like x 10:FE 10:FE PBAliveOrNot and (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx)
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ir
(score: 1.395)
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ir
(score: 1.395)
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| | Re: IR header how optional
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| (...) Whether serial transmission is as simple as start:data:parity:stop repeated, or not, I still have no idea. But I'm posting again to say in those calculations I was off a whole order of magnitude, sorry. I imagine the calculator I used reported (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx)
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ir
(score: 1.395)
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| | Re: IR header how optional
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| (...) I doubt anything (short of a 2MV Lightning Flash) will warm anything in 1 msec. ;) Also, the receiver won't warm up until the header has been read in completion and decoded. So I doubt it's used for that. Normally, in any communication, you'd (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx)
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ir
(score: 1.395)
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| | Re: frame RCX reply how
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| I wish I could give you a direct answer, but I don't know. However, I suspect (as I'm sure you do) that what you are looking for has already been done. Below are three possible sources which you can adopt, co-opt, or reverse-engineer to get where (...) (22 years ago, 1-Feb-03, to lugnet.robotics.rcx)
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ir
(score: 1.393)
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| | framing RCX LNP replies in Java
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| (...) Thanks I reached: src/org/javastorms/lnp/IR.java (...) I think I see ... readMsg accepts what it likes else dies after reading the first distasteful byte. readMsg likes either of xF0 or xF1, then a length byte, then that many bytes, then a (...) (22 years ago, 1-Feb-03, to lugnet.robotics.rcx.java)
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ir
(score: 1.393)
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| | Re: frame RCX reply how
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| (...) Anyone know more specifically where to read how Lejos frames standard RCX IR replies? Does Lejos even include any .java code that runs on the PC? I mean to be asking how a PC should frame the standard replies from Lego RCX fimware, not how a (...) (22 years ago, 1-Feb-03, to lugnet.robotics.rcx.java)
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ir
(score: 1.393)
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| | Re: frame RCX reply how
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| (...) Thanks for the link, but I meant only to be asking: How do I make sense of RCX replies ... ... when the RCX is first powered and after I download Lego firmware. Help? Curiously, cluelessly, thankfully yours, Pat LaVarre P.S. Do we have no (...) (22 years ago, 31-Jan-03, to lugnet.robotics.rcx)
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ir
(score: 1.393)
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