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 Robotics / Handy Board / *3319 (-20)
  Re: Sonar for cheap
 
(...) parts should be under $10.00. Has anyone tried this circuit? Yeah, it doesn't work :) That's why I designed my circuit in the first place. I tore my hair out for a couple of weeks trying to figure out what I was doing wrong. I finally realized (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  thanks
 
Thansk for the quick reply, everyone! phil (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  Re: Sonar for cheap
 
That was probably my web page, the URL changed (my provider's doing) so its now (URL) (which I don't mind as that's my domain, but it confused the hell out of millions :) The old URL (which is no longer) was: (URL) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  Re: Sonar for cheap
 
Also. The Robot Builders Bonanza has a similar circuit. The price for the parts should be under $10.00. Has anyone tried this circuit? (...) information (...) site (...) ___...___ ___...___ Jonathan Swaby 305 Sparks Bldg Computer Support Specialist (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  Re: Sonar for cheap
 
(...) Yep, check out: (URL) Mike Vande Weghe (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  Sonar for cheap
 
A long time ago, someone had posted a link to a website that had information on how to make a sonar sensor pair for $10. Does anyone know where that site is? It must have been about 10-12 months ago. thanks! phil thehahns@nconnect.net (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  V2X Compass
 
I have recently obtained a digital compass circuit as part of a clock (it lights an led that points north) but haven't yet tried to interface with it. I think it will be communicating via SPI but I'm not sure. The question I want to ask anybody with (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  Serial problems
 
Hello, I am trying to get my handyboard working after it has been in a box for a long time. It used to work flawlessly but now I am having trouble downloading the pcode. I did all of the checks for the serial/charger board in the assembly (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  Re: Sonar questions (technical ones!)
 
My sonar seems to be pretty accurate. I would notice a 25% difference. ??? Check your calculations. Maybe you missed something. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of (...) (27 years ago, 26-Feb-98, to lugnet.robotics.handyboard)
 
  Sonar questions (technical ones!)
 
Hello everyone, A few sonar questions (other than where to buy them): 1: The speed of sound has been widely quoted to be 0.9 ft/ms (274m/s), but my Physics text lists it as 343 m/s (at 20C/70F), which is about 1.13 ft/ms, or 25% faster. So why the (...) (27 years ago, 25-Feb-98, to lugnet.robotics.handyboard)
 
  Re: Sonar kits (jluijk, willbain,)
 
(...) At the bottom of the following page are a couple links to vendors: (URL) page is on the Handy Board site; hit the Software link, then Libraries, then follow the Polaroid sonar link.) In addition, the Robot Store in California sells 'em, but (...) (27 years ago, 25-Feb-98, to lugnet.robotics.handyboard)
 
  Re: Sonar kits
 
(...) I would recommend buying the one transducer and module for $50. The extra circuit that you would get with the designer's kit is totally unnecessary if you have the Handy Board already. You only save a few dollars by buying more than one unit, (...) (27 years ago, 24-Feb-98, to lugnet.robotics.handyboard)
 
  IR connections
 
Hi!. I´m trying to connect a IR emitter/receiver boar (Rur Warrior scheme) . I´m going to convert SPI pins in two digital outputs. Can I use the sony receiver?. Can I read this input?. Where?. Is it better connect another IR receiver in an analog (...) (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
 
  UNSUBSCRIBE
 
Can you unsubscribe me please: My address is chauhan@csee.usf.edu Regards Sonam (...) - Sonam Chauhan ---...--- WWW Homepage: (URL) sonam@acm.org Phone: (1-813) 6151435 ---...--- (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
 
  Sonar
 
Hi WW, is your sonar a Polaroid 6500 series or something else ? Where did you get it ? What did you pay for it ? Thanks, Jan (Giovanni). (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
 
  Sonar kits
 
Hallo, I am thinking about buying one of these things: Designer's Kit: 1 transducer, 1 ranging module, electronics display accurate to 1/10th meter. Cost is $169 OEM kit: 2 transducers, 2 ranging modules. $99. or: #01, Transducer and Sonar Module (...) (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
 
  Add me
 
Hi from Paris, please add me to the Handy Board mailing list. e-mail : gab@biomath.jussieu.fr Thanks :-) (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
 
  HOW TO UNSUBSCRIBE
 
1. Please *DO NOT* send unsubscribe messages to the handy board mailing list. 2. Instead, send unsubscribe messages to Fred Martin, fredm@media.mit.edu. 3. The only person who can unsubscribe you is Fred Martin, fredm@media.mit.edu. 4. Thank you. (...) (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
 
  unsubscribe
 
Hi Please unsubscribe me from this list regards Rina (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)
 
  Please unsubscribe
 
Hi Please unsubscribe me from this list regards Bruce (27 years ago, 23-Feb-98, to lugnet.robotics.handyboard)


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