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Has anyone hacked the sonar out of a sonar tape measure? Radio Shack sells sonar tape measures for about $25.00, that's half the price of buying the transducer and sensor together. I mentioned in a previous posting that I am interested in running (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | Re: IR outputB
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(...) i do not have the Mobile robots inspiration book, but i think if you want to use it in a good way you will have to flash the right led for a time, check for reflection, then switch it of and check if there is also reflection (then it was (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR outputB
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I am looking at the Schematic in the HB HP right now. It looks like the 1K resistor is connected to the visible LED. From the schematic, it looks like you can connect a resitor and IR LED in series to the "3-pin female header" to make your (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR outputB
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I had intended the two types of interfaces for different purposes, but, I assume RF does not need line of site work. R/C cars for example can be controlled from several rooms away in my house (worked with one on a telepresence implementation). I (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR outputB
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The software written by Max Davies should allow transmission as well as receiving. The information that I have doesn't include the hardware layout but as far as I understand the 1K resistor in the IR transmission circuit on the board should allow an (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR outputB
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I heard that radio waves do not need "line-of-sight" like IR does. Can someone with more exerience verify or dispute this? It makes sense since longer wavelengths of EMR can bounce off surfaces easier. So maybe your Lynx device is better. ---...--- (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR outputB
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So, it seems like the short answer to this question is no one knows what to attach to correctly and safely (to prevent HB damage) allow IR transmissions from the HB :) I understand the receiving capabilities, as they are documented and have routines (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Another IC error: "Out of memory"
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Hi everyone: I went back and rethought this: (...) I played around it it some more, removed the 'scamper' gait, and got the size of code IC loads down to 12500 bytes, and the error is gone. I'm not sure if this means I have some 3k of variables, or (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | Another IC error: "Out of memory"
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Thanks again for all the help with the "yacc" error I experienced before. I'm having new code resourcing problems now: mainly a problem with my 1994 version 2.851 interactive c. It loads my libraries, and I'm getting an error: "Out of memory (tried (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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| | RE: IR outputB
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(...) It is not the bouncing off of things but the passing through them that makes RF able to operate without line of sight. Line of sight gives greater distances, though, even with RF. The Lynx Tx/RX will definately have a greater range than the (...) (26 years ago, 25-Feb-99, to lugnet.robotics.handyboard)
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