 | | Multiple servo control.
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Has anyone devised a way to control more than 1 or 2 servos from the handy board? I'm talking about 12-14 servos here. Any insight would be appreciated. Thanks in advance. -Cris ---...--- E. Crispell Wagner Department of Computer Science and (...) (27 years ago, 18-Jun-97, to lugnet.robotics.handyboard)
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| | I'm happy !!!
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Boys , I'm really can't believe all the help you give me ... Really, i go to cry of hapiness... But , well I think the better idea ( and most easy of implement ) , is use a digital i/o for detect if exist or not a Handy transmitting to the Pc. My (...) (27 years ago, 18-Jun-97, to lugnet.robotics.handyboard)
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| | Re: servo modification
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Phet, you took off the wrong end. Take the _top_ off the servo and expose the geartrain. Then remove the pot and neuter it as described in the instructions. --Chuck (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | servo modification
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Hi, This is pretty stupid of me, I just figured out how to modify the servos with the help from a document i got at (URL) file TJAM.pdf is in adobe acrobat reader format PDF and it was very helpful. Thanks anyway.... phet (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | servo modification
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Hi, I'm having some trouble modifying a servo i've purchased from tower hobbies. The brand i'm using is Tower Hobbies System 3000 STD BB TS-69. I've read the instructions on modifying Futaba FP-S148 servo but internal mechanisums for the TS-69 seem (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Comuniction with PC (2)
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Marco, TCP/IP is clearly wayyy to complicated for the 68HC11 to deal with on the handyboard. The simplest solution is wireless modems which act effectively as wireless serial lines between your PC and your Handyboard. I've used the 900Mhz modem that (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | collaborator/consultant sought
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I'm an architect/industrial designer/professor in NYC working on a "robotic" low voltage lighting system. I'm looking for someone (preferrably, but not necessarily, located in NYC region) to collaborate or consult. I'd like to find an electrical (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Comuniction with PC (2)
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REF: Multiple HandyBoard with PC communication Wireless Greetings, I would like to inquire about wireless communication among HandyBoards and a PC. We are using a wireless modem with TCP/IP capability (the Nomadic Mercury modem) and am curious to (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Comuniction with PC (2)
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Just another idea. What if you attached all the boards in a ring, sort of the token ring network idea that IBM used in their networks. Only make communications go in a clockwise path, and give each board an id#. Send the number and then the info. (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Comuniction with PC (2)
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(...) German Gentile from Argentina, hmmmmm..... Well, it fits my USA-media-distorted, sitcom-soaked, soundbyte-educated worldview! Sounds like you need to use the SPI (Serial Peripheral Interface) ports on the Handyboards. When one of the slaves (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Comuniction with PC (2)
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Hi, well that's a cooncidence. I'm working on a project witch multiple nodes via RS-232 also. We use a philips microcontroller(well 3 actually), but that doesn't matter for the RS-232 communication. We found a method to make it possible for all (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | Comuniction with PC (2)
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I'm developering a project . This project need comunication from Pc to 8 Handy boards(outside of IC, i'm working with Delphi). My problem is : How i can comunicate with 8 handy , without collitios???. Well , i think in send message to all the handy (...) (27 years ago, 17-Jun-97, to lugnet.robotics.handyboard)
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| | collaborator/consultant sought
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I'm an architect/industrial designer/professor in NYC working on a "robotic" low voltage lighting system. I'm looking for someone (preferrably, but not necessarily, located in NYC region) to collaborate or consult. I'd like to find an electrical (...) (27 years ago, 16-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Need a Credit Card...
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|
This seems like abuse to me: Received: from minnekahda.netperceptions.com (minnekahda.netperceptions.com [206.144.188.35]) by augusta.netperceptions.com (8.8.4/8.8.5) with ESMTP id XAA11712 for <tomb@augusta.netper...ions.com>; Fri, 13 Jun 1997 (...) (27 years ago, 16-Jun-97, to lugnet.robotics.handyboard)
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| | Robot contest
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Trinity College Fire-Fighting Home Robot Contest Miscellaneous comments and feedback to questions ***...*** Dear contest participant and/or spectator I am sending you this general message in response to your comments and feedback about the contest. (...) (27 years ago, 16-Jun-97, to lugnet.robotics.handyboard)
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| | Re: NiMH batteries?
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(...) NiMh batteries do not have a memory but they do discharge faster when sitting unplugged. In my Thinkpad 750 (for which I have one NiCd and two NiMh batteries) the NiCd looses < 5% of its charge overnight and the NiMh batteries loose around 15% (...) (27 years ago, 16-Jun-97, to lugnet.robotics.handyboard)
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| | Walker Invasion #2
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More and more people are building walker robots each week. These web sites can help you become one of them soon. Steven Bolt just posted a note about his "Spider" robot on the BEAM list. His web site shows the eight-leg robot and includes (...) (27 years ago, 16-Jun-97, to lugnet.robotics.handyboard)
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| | Re: NiMH batteries?
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(...) Well, that is one of the great benefits of NiMH batteries is that they can be charged without ever having to completely cycle them. They are really convienient in Cel phones since you can use a trickle or 'zap' type charge on them no matter (...) (27 years ago, 16-Jun-97, to lugnet.robotics.handyboard)
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| | Re: NiMH batteries?
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(...) When I bought a mobile phone (or cellular if you like), the sales guy said that the NiMH didn't suffer from the memory effect like NiCad batteries do. But that was from a sales person - not necessarily reliabe info! cheers chris (27 years ago, 16-Jun-97, to lugnet.robotics.handyboard)
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| | Electrostatic cooling of robots
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The Yuma proving grounds, in Arizona, has proven to be a hostile environment for robots. In his UXO detection paper, Mark W. Tilden, researcher at Los Alamos National Laboratory, describes the area: The Yuma terrain is excessively hot during the day (...) (27 years ago, 15-Jun-97, to lugnet.robotics.handyboard)
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| | Re: stacked L293's
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It sounds like you have some kind of short in your L293B/D circuit. Do you have any single chips you can try separately? This method of stacking chips does often work, but you might have blown one, and then the two of them are fighting each other. (...) (27 years ago, 14-Jun-97, to lugnet.robotics.handyboard)
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| | Re: your mail
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(...) Hi, You can tap the +5Volt pin from any of the digital/analog headers to power your motor drivers. (...) (27 years ago, 14-Jun-97, to lugnet.robotics.handyboard)
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| | (no subject)
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Ihave solder two l293 (one D y one B) togethers .If i push that in the board , the battery go off in 60 seconds!!!! If i probe the motos (testmotors()) work fine ,but leds for the motor ligth without this outputs are actives!!! Wath is happens??? I (...) (27 years ago, 14-Jun-97, to lugnet.robotics.handyboard)
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| | RE: NiMH batteries?
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i'm sure they do, but the memory effect can be fixed and can be used to your advantage in some cases... you may want to talk to people all a local hobby store... esp. if they have a track.... i never learned the memory stuff, being into gas trucks, (...) (27 years ago, 14-Jun-97, to lugnet.robotics.handyboard)
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| | Need a Credit Card...
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If you have challanged(bad)credit and want to rebuild it, a good start is with a credit card. How DO I GET ONE you might ask? Follow the link below: (URL) (27 years ago, 14-Jun-97, to lugnet.robotics.handyboard)
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| | RE: NiMH batteries?
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Does anyone know if NiMH batteries suffer from the memory effect? ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement (...) (27 years ago, 13-Jun-97, to lugnet.robotics.handyboard)
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| | Compiling in MS-DOS
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I searched the archives and found the web site for the MS-DOS version of the assembler compiler, but I seem to be having problems compiling programs (it would be nice if the HB web site linked directly to this site, since it looks like I wasn't the (...) (27 years ago, 13-Jun-97, to lugnet.robotics.handyboard)
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| | Sensor Basics
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Robots depend upon sensors to give them information about the "real world." These sensors detect a value, convert it to a measureable form, and scale its range. A Phototransistor, for example, converts light intensity into fluctuations of electrical (...) (27 years ago, 13-Jun-97, to lugnet.robotics.handyboard)
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| | NiMH batteries?
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Hi, I just came accross a 7.2volt (6 cell) NiMH battery. I think it's from a cell phone. My questions are: 1- can they be low current charged just like nicads? 2- can they deliver gobs o' current like nicads? 3- has anyone used them with a (...) (27 years ago, 12-Jun-97, to lugnet.robotics.handyboard)
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| | unsubscribe
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please remove me from the mailing list unsubscribe (27 years ago, 12-Jun-97, to lugnet.robotics.handyboard)
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| | Handy Board - Interface/Charger Board
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Hi, I have started a project to build a Handy Board and everything was going fine until I started checking voltage in step 3.2.2. I get around +5 volts going from pin 2 of U16 to pin 7 of J9. Also, when checking pin 6 of U16 I'm getting nothing. I (...) (27 years ago, 12-Jun-97, to lugnet.robotics.handyboard)
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| | vakantie jaron
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hoi han, zou jij voor de komende periode (tot 1 juli) mijn elektronische post dat binnenkomt op jaron.paludanus@rnw.nl (èn synoniemen) kunnen doorsturen naar 101377.1661@compuserve.com, thanxs * Radio Nederland Wereldomroep * Afdeling Informatie (...) (27 years ago, 12-Jun-97, to lugnet.robotics.handyboard)
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| | Walker Invasion
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Walking robots are in vogue now. Moving step-by-step over uneven terrain--indoors and out, they seem to have a life of their own. They were once complicated devices that took many man-years to build and program. Now, students routinely build them (...) (27 years ago, 12-Jun-97, to lugnet.robotics.handyboard)
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| | Problems with inputs.
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I have my new handy board, but i can.t read any input. I have tried with peeks and with the hbtest.v and other programs. The only oinput that works are the two buttons. I have replaced the Rpacks with resistances, because here (i'm from argentina) (...) (27 years ago, 12-Jun-97, to lugnet.robotics.handyboard)
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| | IC in Linux
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I'm using (or trying to use) IC version 2.860 beta for Linux, but it doesn't like the pcode I have on the handyboard. I have pcode version with a major version number of 2 and a minor number 81. The ic is looking for a version such that (major*10 + (...) (27 years ago, 11-Jun-97, to lugnet.robotics.handyboard)
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| | unsubscribe
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please remove me from the mailing list (27 years ago, 11-Jun-97, to lugnet.robotics.handyboard)
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| | motor power...
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Hi All, I've run into some problems with my robot, any help in solving it will be appreciated. Iam using a radioshack toy for my vehicle. The onboard H-bridge on the vehicle has transistors rated at 10A max, 50Wmax. As the HB drivers cannot power (...) (27 years ago, 11-Jun-97, to lugnet.robotics.handyboard)
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| | LCD panel
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Sirs I have a Sharp LM64P62 640X480 LCD panel, and would like to use a handy-board (or ??) as a stand-alone controller for it. any suggestions, schematics or software would be appreciated. yours, darrell (27 years ago, 11-Jun-97, to lugnet.robotics.handyboard)
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| | RE: NiMH batteries?
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for all custom nicad applications, i use radio controlled car batteries.... high amp's... steady charge... great for quick charge... you can even get them matched (which isn't really nessicary for most applications) you can find these batteries in (...) (27 years ago, 11-Jun-97, to lugnet.robotics.handyboard)
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| | vauge
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Hi All, Whenever i switch ON the board, the IR OUT LED also glows???? this problem was not there before, came suddenly out of the blue... any suggesstions, remedies???? Thanks Sriram (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | Comunications between handys
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I need to build 4 modules with handy comunicated. This modules have to send and receive data from a pc (via rs232). What is the better way??? (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | IC
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(...) Hi Max, If I recall, you're using the UNIX version of IC for 6.270 boards. Be sure to read the README which tells how to set up IC to default to load the lib_r22.lis file. Basically, for UNIX you cd to the directory with IC, and type "ic (...) (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | brief hiatus
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hi all, i'm out of the country and probably out of e-mail touch through sunday. mailing list unsubscribe requests, etc. will be handled next week. best, fred (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | IC 3.1 questions
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Aloha, fellow roboticists- I've just started using IC 3.1 for all my interactive C needs (on some old 6.270 boards for a seminar I run), and there are a few differences between it and the old beta ICs I haven't figured out. The main one is that the (...) (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | (no subject)
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Howdy. I've been having a little trouble trying to re-assemble a version of pcode for my handyboard to take advantage of a 20x4 LCD display. I'm using Linux as my development environment and the way I've got my files set-up is illustrated below: (...) (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | Interrupt driven serial
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Anybody have any sample code for interrupt driven serial output. I need to send out 3 bytes and have the SCI interrupt occur after each byte. Thanks! -John (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Dissecting a mouse for the Handyboard
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I opened a mouse a while back. Although I was kinda young at that time, I believe what I saw was two incremental quadrature encoders (from what I remeber visually). One encoder is for the X axis and one for rhe Y axis. The mouse I opened had slotted (...) (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | Programing prob.
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Trying to figure out writing in 'C'. If anyone could help it would be great. I have included my code but it needs alot of work!! I am using the Handyboard w/ LEGObug and I can't figure out how to put the motors in a loop and also have the two touch (...) (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | SONY-TX.ICB
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Has anyone tried to use SONY-TX.ICB with any luck? I get the icb loaded just fine and can get it to trigger the ir output test led (the little red one) with nothing plugged into the connecter, but when I plug an ir led into the jack and run the (...) (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Dissecting a mouse for the Handyboard
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(...) (URL) at the "Loboto-Mouse (tm)" section on the first page. Cheers, Michael A. Tyborski WebWerx Milwaukee, WI (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | Dissecting a mouse for the Handyboard
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Hi All, Has anyone dissected a PC Mouse, and interfaced it with the Handyboard, to use it as a directional and speed indicator. Any information on how the mouse works or how it can be used with the handyboard would be appreciated. Thanks Michael (27 years ago, 10-Jun-97, to lugnet.robotics.handyboard)
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| | RE: HBDL still not working with win95...
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Try going to the shutdown menu for Win95. Select restart in Msdos mode. Once the system gives you the dos prompt, try hbdl again. (...) may take a min but how much speed do you need?... if that works... try 19200, 38700, blah blah blah... (...) (...) (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | magnetic card devices
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I need to read a magnetic card device from a Handy Board, and i don't know how this device send me the read data. Can anyone hel me about that??? Thanks for all . [sorry for my english . Me Tarzan , you Shane ... ;>) ] Germán Gentile. (...) (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | Handy Board Weight
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Hmm.. Seems my reply address was wrong in my original message, so i'm re-posting this with the right address. (Thanks Fred for pointing this out). I'm working with a robot where weight is very important. I was wondering if anyone had the exact (...) (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | Re: System Interrupts & frequency counting
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(...) Paul, What you want to do is easy. All you need to do is get a small assembler routine which uses the Input Capture feature. Set the IC via registers to trigger when a rising pulse begins, it will stash the time and strigger an interrupt. Then (...) (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | Re: System Interrupts & frequency counting
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(...) I'm unfamiliar with the workings of IC, but if your interrupt service routine is sufficiently short, and you don't reset the interrupt mask to enable recursive interrupts, you shouldn't notice the difference. You asked if there was a more (...) (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | System Interrupts & frequency counting
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I'm in the middle of planning/writing a small program that will read a digital input to determine it's frequency & pulse width. I thought it'd be nice to have this part of the program (in assembly) running off the system interrupt so that these (...) (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | Handy board weight
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I'm working with a robot where weight is very important. I was wondering if anyone had the exact weight of the Handy board, Miniboard and the Nicad battery pack that the Handy board uses? Thanks, Daryl Boyd (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | Maze madness
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Maze-running competitions are one of the earliest ways used to test mobile robots. They force developers to build mechanical mice that quickly learn the most effective path to a goal and reach it in the shortest time. The mazes range from tabletop (...) (27 years ago, 9-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Shaft Encoder
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(...) Here are two articles that may help you do direction sensing: Improved tachometer eliminates backlash by Andrew Dart EDN March 31, 1987 Page 210 Tachometer circuit reduces parts count by William McClelland Shows an improved circuit based upon (...) (27 years ago, 8-Jun-97, to lugnet.robotics.handyboard)
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| | serial io again...
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(...) Nevermind folks, I figured it out. It was my setup of the com port in TurboC. Here is the code I used to solve the problem if anyone is interested... #define PORT1 0x2F8 /* com2 */ void initialize_comport(void) { outportb(PORT1+1,0); /* turn (...) (27 years ago, 8-Jun-97, to lugnet.robotics.handyboard)
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| | Shaft Encoder
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Hi, Do anyone know how to connect up two channel shaft encoder and able to read in the direction of turning? Please help... Johnny (27 years ago, 8-Jun-97, to lugnet.robotics.handyboard)
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| | RE: HBDL still not working with win95...
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2 things to try... first... slow down the baud... 9600 should be fine for a 64k program... it may take a min but how much speed do you need?... if that works... try 19200, 38700, blah blah blah... if neither of those work... jump into your bios and (...) (27 years ago, 8-Jun-97, to lugnet.robotics.handyboard)
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| | HBDL still not working with win95...
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Big thanks to everyone who respnded to my original question. I have essentially ruled out an IRQ conflict. I have a PS/2 mouse (IRQ 12) and only com1 (serial port) and com2 (modem) are enabled. HBDL always returns the addressing error while (...) (27 years ago, 8-Jun-97, to lugnet.robotics.handyboard)
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| | Serial IO
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I am trying to get my handyboard communicating with a TurboC program through the com2 port on my computer. I have been attempting to use the routine found in serialio.c on the website. Say I have an infinite loop setup on my handyboard that looks (...) (27 years ago, 8-Jun-97, to lugnet.robotics.handyboard)
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| | Using HBDL with a fast Pentium?
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Hi all, I've seen questions about this before, but can't recall anyone posting a solution. The problem is that I can't get HBDL to work in Win95 on a P166. When trying to download, the process works okay until I get an error dialog box that says: (...) (27 years ago, 7-Jun-97, to lugnet.robotics.handyboard)
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| | HB assembled for sale
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Reluctantly I will sell my assembled Handyboard for $200 to the first taker. The ONLY reason I'll do this is I'm out of work temporarily on medical and must refocus my energies. I live in York, ME and can be contacted by (...) (27 years ago, 7-Jun-97, to lugnet.robotics.handyboard)
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| | hey!!! it's a god serial board!!!
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i'm not one to sell stuff... but i thought you guys might be interested in this... usb might make this product obsolete, but i'm thinking about getting one dual r2-232 (duh) 16650 UART 460.8Kbps!!!...!!! ideal for modems, isdn, and terminal adapters (...) (27 years ago, 7-Jun-97, to lugnet.robotics.handyboard)
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| | Handy Board for Sale
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Reluctantly I will sell my assembled Handyboard for $200 to the first taker. The ONLY reason I'll do this is I'm out of work temporarily on medical and must refocus my energies. I live in York, ME and can be contacted by (...) (27 years ago, 7-Jun-97, to lugnet.robotics.handyboard)
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| | My IR detector design
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For all of you who have looked at my design for a 16 sensor IR proximity detector I have a few updates for you. I have been working with the circuit for about a week now and I have discovered a few things that will make the circuit more stable. They (...) (27 years ago, 7-Jun-97, to lugnet.robotics.handyboard)
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| | My IR detector design
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For all of you who have looked at my design for a 16 sensor IR proximity detector I have a few updates for you. I have been working with the circuit for about a week now and I have discovered a few things that will make the circuit more stable. They (...) (27 years ago, 7-Jun-97, to lugnet.robotics.handyboard)
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| | Re: CV: FW: Time to get political!
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Why am i getting all this crap? i dont care about stupid gay planes rides and stuff. (27 years ago, 6-Jun-97, to lugnet.robotics.handyboard)
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| | my first question
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Hi. ive read all the posts from this year but cant seem to find the right answer. i get the following message when i start to download: 6811 .s19 file downloader. Version 7.2 Mar 14 1994 by Randy Sargent Using the modem port. Please place board in (...) (27 years ago, 5-Jun-97, to lugnet.robotics.handyboard)
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| | Handyboard Troubleshooting
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I was given a Handyboard v1.2 some friends of mine and it wasn't functioning correctly. I used the assembly and troubleshooting instructions to try and get things working, and then I got stuck.. Here's the deal: I got to step 6.0.5, testing the LCD (...) (27 years ago, 5-Jun-97, to lugnet.robotics.handyboard)
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| | sorry!!!!
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i guess i double clicked on this address as well as all the others!!! sorry... i'll be more careful.... ---...--- From: Randy Eaton Sent: Friday, June 06, 1997 12:32 PM To: killkie Subject: Re: FW: Time to get political! (...) Stumpf; Andra Blythe (...) (27 years ago, 5-Jun-97, to lugnet.robotics.handyboard)
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| | FW: Time to get political!
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---...--- From: Susan M Moll Sent: Friday, June 06, 1997 11:57 AM To: Josh Diehl; Carrie Fisher; Kit Wetzler; Juan Preciado; Barb; Greg Larson; Chris Mash; Josh Stumpf; Andra Blythe Pfautz; Dave Trask; Bill Jacobs; John Kinsella; Jenna Shields; (...) (27 years ago, 5-Jun-97, to lugnet.robotics.handyboard)
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| | Re: converting binary to integer
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|
(...) You can always read the port directly like so: (int) data = peek(0x7000); If the bits you're interested in happen to start with the 'least-significant- bit' (LSB) and continue consecutively (eg 0b00000111) where the 1's are the bits you're (...) (27 years ago, 4-Jun-97, to lugnet.robotics.handyboard)
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| | Re: converting binary to integer
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(...) Multiply each bit by 2^n, where n is the "place" of the number. Then add the products together. For example... 1011 = 1*2^0 + 1*2^1 + 0*2^2 + 1*2^3 = 11 The "zero" place is the one furthest to the right, and you work left from there. ---...--- (...) (27 years ago, 4-Jun-97, to lugnet.robotics.handyboard)
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| | converting binary to integer
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I am reading four digital inputs and I need a way to convert those four bits into a decimal number. Is there an easy way to do it. Thanks. Keith Keith Soldavin kas219@email.psu.edu (URL) (27 years ago, 4-Jun-97, to lugnet.robotics.handyboard)
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| | Ineed the blank PCB of Handy board!!!
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Can anyone tell me who and where obtain the handy board and interface charger Blank PCB???? I livein Argentina, I paid as you like , but PLEASE I NEED THIS QUICKLY!!!!! Thanks!!! ggentile@cvtci.com.ar (27 years ago, 4-Jun-97, to lugnet.robotics.handyboard)
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| | robot vision
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Is there a web page for the CCD processing board from MIT.I know of the cognachrome vision system, is there any others. Thank you, JoeMartin Email:joema@mpx.com.au (27 years ago, 4-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Sonar for longer ranges
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(...) The Polaroid manual talks about acoustic horns to narrow the beam angle...has anyone tried this? (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | Sonar for longer ranges
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Hi everyone, I have had the Polaroid sonar sensor working for a while and I just noticed some limitations in it. When sensing over about 15 feet it becomes very inaccurate, it registers the appropriate distance but intermittently gives out much (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | flame sensing
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Regarding sensing flame/arc...Eltec Instruments make pyroelectric detectors to detect flames and arcs emanating from arc welding etc.. Basically the detector has an filter which does not pass any light ] beyond the wavelength of 4 micrometers (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | "Smoovy" motors
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Hi all, Would anybody want to take a look at _5mm_ and _3mm_ diameter gearmotors? 1:125 & 1:25 ratios input speeds up to 80,000 rpm bidirectional and brushless. (URL) goes to Dave Hrynkiw from the BEAM Robotics mail list for providing this (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | Re: 6500 Sonar and HandyBoard
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F> Kent, F> I read your quick explaination of how to connect F> the Polaroid 6500 sonar board to the HandyBoard, and I have a F> couple of questions.... F> Mainly, you mention that the INIT F> signal plugs into pin 9 of the second motor driver chip (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | RE: converting binary to integer
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that works... but try the finger method... it helps you under stand the concept by giveing you something tangible to work with ---...--- From: Jeff Keyzer Sent: Tuesday, June 03, 1997 10:38 PM To: Keith the wonder wookie Cc: Handy Board Subject: Re: (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | RE: converting binary to integer
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you can do it on your fingers... each finger is a bit... no fingers is 0, pinky 1, ring 2, middle 4, pointer 8, etc... once you get it down, counting bits is a breeze... i (missing on finger) can count to 512... math is still pretty hard... but can (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | New Handyboard Supplier
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Hello all: There will be a new handyboard supplier in the coming few months. We will start supplying the handboard on August. The price of the WHOLE handyboard Assembled kit (manuals, boards, cables... etc.), will be LESS than $200.00!!! We (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | Removal
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Thanks for all your help. Please remove me from the list. Thank you! Stacy merricle.1@osu.edu (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Vector 2x giving me lots of trouble...
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Wht's this HTML stuff? :) ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | Re: your mail
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Alot of ones. It works. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | IR signal
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Hi All, My SharpIS1U60 detectors seem to be picking up strong signals from the LED even when there is no obstacle in front of it. I have mounted the detector 1 inch under the LED , with a brass plate separating them. Two more detectors mounted to (...) (27 years ago, 3-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Digital Micro Systems
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(...) hard-copy manuals? I ordered it along with IC the beginning of May and haven't recieved it yet, what's going on? Peter Eacmen -- Peter Eacmen Boston Latin School E-Mail:Eacmen@postof...et.att.net Home Page: (URL) (27 years ago, 2-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Vector 2x giving me lots of trouble...
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(...) Yes, I had this problem also. (...) That is a good idea but there's no reason to put the compass into Slave mode to do it. According to the Vector docs while the compass is in Master mode you can either hold P/C low for continuous sampling or (...) (27 years ago, 2-Jun-97, to lugnet.robotics.handyboard)
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| | Re: Vector 2x giving me lots of trouble...
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F> Well, I seemed to have narrowed down the problem I was having with F> the Vector2x compass. It was functioning fine... All I had to do F> was write clean code that called comp_disable(1) at the F> end. When my code wasn't doing that, the compass (...) (27 years ago, 2-Jun-97, to lugnet.robotics.handyboard)
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| | (no subject)
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How is everyone connecting the Polaroid ultrasound device to the handyboard? Scott sherman@plains.nodak.edu CSG ITS NDSU (27 years ago, 2-Jun-97, to lugnet.robotics.handyboard)
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| | metamail
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metamail users, We turned off metamail on all of our hosts for security reasons so I cannot read anything that is sent to me via metamail. If it is possible for you to do so could you send mail to the handyboard list in a different form? Thanks. (...) (27 years ago, 2-Jun-97, to lugnet.robotics.handyboard)
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| | DMS
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I can only relate my personal experience with Digital Micro Systems, and tell you that the service and product was excellent. Even when assembled by the likes of me-it worked on the first download. I'm waiting for Fred's book-as I haven't the (...) (27 years ago, 2-Jun-97, to lugnet.robotics.handyboard)
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| | Re: number conversions
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Keith, The way to convert from floating point to int and vice versa in C is called typed casting. It is accomplished as follows: integer_number = (int)floating_point_number; for converting float to int. To convert the other way, simply type: (...) (27 years ago, 2-Jun-97, to lugnet.robotics.handyboard)
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