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 | | guipossebon@zipmail.com
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| Hello people: I´m a student from PUCRS(Brazil) and I have to finish my conclusion Work in my course(Mecatronical Engineering) and I need to Know how I modify the frequency in MC68HC11 set in 500Hz to 5KHz because the drivers need work to control a (...) (24 years ago, 10-May-00, to lugnet.robotics.handyboard)
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frequency
(score: 1.982)
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| | Re: A few questions
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| DVM or Oscilloscope: Most DVM will indicate the RMS or True RMS value of a sinewave with in the frequency range of the meter. Some functions to consider: Function DVM Oscilloscope Frequency Some via time for a period (or half period) RMS Sinewave (...) (27 years ago, 30-May-97, to lugnet.robotics.handyboard)
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frequency
(score: 1.982)
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| | Re: Use PC's IR port instead of IR tower?
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| In theory it's possible, provided that: [1] The optical frequency matches adequately (anyone know?) [2] 38400 Hz is close enough to the RCX/Scout modulation frequency to get past any bandpass filtering.. [3] The PC software can accurately turn IR (...) (24 years ago, 10-Oct-00, to lugnet.robotics.rcx)
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frequency
(score: 1.982)
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| | Re: encoder function
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| Tom, it seems that your routines measure frequency but Yoni wanted to count transitions. Yoni, the approach is similar to what Tom has done in that you must use the timer input channels to get high frequencies. In the TCTL2 register, set the input (...) (27 years ago, 7-Feb-98, to lugnet.robotics.handyboard)
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frequency
(score: 1.982)
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frequency
(score: 1.982)
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| | Re: Ir and proximity detection
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| Hi everyone, (...) No you can't tune the frequency of the IR. Although with two RCXs you could use the comms IR to look for reflected packets with specific content. However, do you want o avoid or attack other robots ? If it's avoid, then you don't (...) (23 years ago, 2-May-01, to lugnet.robotics)
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frequency
(score: 1.982)
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frequency
(score: 1.982)
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| | Re: IR Subsystem confusions.
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| (...) It is a useful for wireless communication (one way), beacon detection (the 6.270 boards used it for this) and for collision detection. (...) The part on the Handyboard has a 'center frequency' of 38Khz whereas the Radio Shack part has a center (...) (28 years ago, 28-Mar-97, to lugnet.robotics.handyboard)
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frequency
(score: 1.982)
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| | Re: Text to Speech capability on the RCX
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| hi Ram, I wish to do the same. I was looking for the code used for programs like "PC-speaker", but I cant find the source code. So now I'm thinking of the following: Normal sampling gives much to large files for the RCX. With NQC or RCXcc you can (...) (24 years ago, 2-Feb-01, to lugnet.robotics)
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frequency
(score: 1.982)
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frequency
(score: 1.982)
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frequency
(score: 1.982)
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frequency
(score: 1.982)
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| | Re: Top 1000 noisemakers (was: Re: Posting frequency?)
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| (...) Wow, I hadn't even seen this until now. It would have been much worse, no doubt, had I not gone off to Europe. Wait, I'm just making it worse right now...no, now... ack! #17...how wishy-washy. I'm not at all surprised at who the top 5 are, (...) (23 years ago, 11-May-01, to lugnet.people)
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frequency
(score: 1.982)
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| | Re: A Generic Idea
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| Nick Tarleton wrote: > I don't know how fast the speaker can change frequency > or how soon it can be reacted to, so I can't get a bandwidth estimate. The telephone system can (at best) transmit at 56Kbaud (that's the speed of the fastest possible (...) (22 years ago, 5-Jan-03, to lugnet.robotics)
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frequency
(score: 1.982)
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| | Re: Range of RCX sound production
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| but a microphone was its own frequency curve in which you need to compensate. ----- Original Message ----- From: "Kevin L. Clague" <kevin_clague@yahoo.com> To: <lego-robotics@crynwr.com> Sent: Wednesday, August 18, 2004 12:56 PM Subject: Re: Range (...) (20 years ago, 18-Aug-04, to lugnet.robotics)
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frequency
(score: 1.982)
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| | Re: Modular RC kits?
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| (...) It sounds great (apart from the odd frequency -- I wonder if they're using Radiotronix boards?), but in order to use it, I'd have to actually get one -- and HiTechnic dropped off the face of the earth several years ago, nest pas? Best, - Joe (20 years ago, 31-Jan-05, to lugnet.robotics)
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frequency
(score: 1.982)
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| | Re: NXT Sound Sensor
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| (...) I agree about high grade DSP, but frequency discrimination may be quite possible... in the past we had a product based on a puny 8MHz 80C188 that was able to run ISDN stack, transfer 64 kbits/s data on one channel, 64 kbits/s voice on the (...) (18 years ago, 6-May-06, to lugnet.robotics)
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frequency
(score: 1.982)
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| | Re: R: MIDI and WAV on the RCX
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| Hi Guido, (...) That's good. (...) Why is that, you've know the complete structure (which I heard can be very different) of a wav file and decode it yourself, or am I missing something ? (...) That's great intention ! and too difficult for me. (...) (...) (23 years ago, 4-May-01, to lugnet.robotics)
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frequency
(score: 1.982)
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| | Re: Interesting BrickOS Timing Results
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| Mark, ANOTHER great find! You are pushing BrickOS to new heights! Ok, so what can we do about this? 1) Provide a constant to set the update frequency at compile time. 2) Provide a variable to set the update frequency at run time. 3) Optimize the (...) (22 years ago, 14-Jan-03, to lugnet.robotics.rcx.legos)
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frequency
(score: 1.982)
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| | Re: RCX to PDA (Answers, please :-)
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| I also read somewhere that there might be a way to change the frequency, possibley by increasing the "baud rate"? I know that there is a way (at least on Palms) to change the frequency, because I downloaded a Remote Control program that would learn (...) (22 years ago, 16-Jul-02, to lugnet.robotics)
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frequency
(score: 1.982)
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