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(...) I would be interested, but I have no audio equipment (apart from a function generator) Very interesting data BTW! Philo (16 years ago, 28-Feb-09, to lugnet.robotics, lugnet.boats)
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| | Re: NXT sound sensor characteristics
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(...) Excellent suggestion!!! We'll open one sensor and try once again. (...) (URL) else interested in repeating the experiment? Philo? Claude P.S. I added a graph to the page, where the sound pressure is maintained constant. (16 years ago, 28-Feb-09, to lugnet.robotics, lugnet.boats)
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| | Re: NXT sound sensor characteristics
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(...) Since I was doing this all manually, it was by far the easiest. I realized that a better way would be to vary the signal generator level at each frequency, but often when trying that I simple "maxed out" the reported level from the sound (...) (16 years ago, 28-Feb-09, to lugnet.robotics, lugnet.boats)
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| | Re: NXT sound sensor characteristics
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Thanks Brian (...) Your excellent graph shows that you tried to maintain the sound pressure constant. We did the inverse in the last graphs, where we tried to draw the curve for a constant NXT sensor value. We also repeated the experiment, and this (...) (16 years ago, 28-Feb-09, to lugnet.robotics, lugnet.boats)
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| | Re: NXT sound sensor characteristics
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(...) anything interesting at 3 kHz... perhaps because I didn't go that high (oops). To figure out the frequency response I did it manually: I borrowed a signal generator and speaker from the university, as well as a sound meter, and then simple (...) (16 years ago, 28-Feb-09, to lugnet.robotics)
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| | NXT sound sensor characteristics
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We've worked some hours to do some interesting experiments with the NXT sound sensor in order to learn more about the sensor characteristics: Please consult: (URL) and help discussing. Claude Baumann (16 years ago, 27-Feb-09, to lugnet.robotics)
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| | Re: My Lego Flexpicker Video on YouTube
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Chris, Your story and your efforts make me smile! KUDOS-2-U!! ...keep us posted! yours, Eric Sophie Legomaster Biomechanical Bricks p.s. congrats on the Gizmodo nod, too cool! (16 years ago, 26-Feb-09, to lugnet.robotics.nxt)
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| | Re: My Lego Flexpicker Video on YouTube
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(...) They found out about it because I ruthlessly, shamelessly sent emails and posts to everywhere I could find, including ABB and some of their partner companies. I had no intentions except saying "Hey, look at this." They did, and they liked it. (...) (16 years ago, 26-Feb-09, to lugnet.robotics.nxt)
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| | Re: My Lego Flexpicker Video on YouTube
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(...) Congrats! That is great! How did they learn about your Robot? Did they see it on Youtube? This is a great opportunity! I bet people will be very very very interested in your robot! Likewise, I am sure it will be equally facinating for you to (...) (16 years ago, 25-Feb-09, to lugnet.robotics.nxt)
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| | Powering Power Functions Using a 9V Train Regulator
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Calling all EE's, robotics nuts, technic gurus, PF fanatics, and electronics geniuses... So by using the PF to 9V connector wire, I can run a PF motor using the 9V Train regulator. This is all wonderful...until I try to put an IR receiver between (...) (16 years ago, 25-Feb-09, to lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Robot podcast interviews
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***Apologies for multiple postings*** Dear Colleagues, I hope you will find this robotics podcast interesting and useful: (URL) podcast interviews are intended as a top-quality information resource for robotics. They target a general technically (...) (16 years ago, 24-Feb-09, to lugnet.robotics)
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| | Brickworld - Esther Walner Memorial
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(URL) Share - Learn - Explore - Discover The Brickworld Team is sad to report the passing of Esther Walner. Esther served as Brickworld's newbie and FFOL coordinator. We send our deepest condolences to Esther's family. Esther's smile and enthusiasm (...) (16 years ago, 24-Feb-09, to lugnet.events.brickworld, lugnet.fun.community, lugnet.announce, lugnet.general, lugnet.events, lugnet.robotics, lugnet.trains, lugnet.castle, lugnet.pirates, lugnet.space, lugnet.people, FTX) !!
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| | Re: My Lego Flexpicker Video on YouTube
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(...) I just go an invitation to display this robot at the ABB Technology Days in Auburn, MI in April. How cool is that! Chris (16 years ago, 19-Feb-09, to lugnet.robotics.nxt)
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| | Re: My Lego Flexpicker Video on YouTube
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(...) 35%. That shows how precise these systems are. I bet it would "whip" around higher than that. Additional gearing down would just make it bigger. I think that pause is also advantageous in that, you get a chance to hear and or realize all the (...) (16 years ago, 17-Feb-09, to lugnet.robotics.nxt)
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| | Re: My Lego Flexpicker Video on YouTube
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(...) The Ohio State University. My alma mater and my second passion. (16 years ago, 16-Feb-09, to lugnet.robotics.nxt)
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| | Re: Finally, I found the answer!!
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(...) I am missing the packet length in the command packet. before send a command packet, the length of the packet must be sent first. Size of the packet length is word(2 byte), but value of the packet length is not included itself. (16 years ago, 16-Feb-09, to lugnet.robotics)
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| | Re: My Lego Flexpicker Video on YouTube
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(...) What I want to know is what collegiat logo is that in the background. STATE is all I can see. (16 years ago, 16-Feb-09, to lugnet.robotics.nxt)
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| | I am stuck while programming for comunication to lego NXT
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I am a hobbyist programmer and trying to make NXT remote control program for PC. anyway, I am succeed open bluetooth SPP, send a command, and got response from the NXT. But the problem is.... sending tons of repeatly command and one response. NXT (...) (16 years ago, 15-Feb-09, to lugnet.robotics)
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| | BrickOS Patches and Development
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Greetings, This is a follow up to earlier postings discussing the development status of BrickOS. While the Sourceforge project has not had much activity of late, I've come across various modifications that, unfortunately, have never made it (...) (16 years ago, 15-Feb-09, to lugnet.robotics.rcx.legos)
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| | Re: My Lego Flexpicker Video on YouTube
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(...) This one can run much faster. I am running the motors at 35%. I had to choose between realism and speed. If it goes much faster, when it stops suddenly, the loose joints cause it to swing and sway. I would have to put about a one second pause (...) (16 years ago, 14-Feb-09, to lugnet.robotics.nxt)
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