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(...) Yep. You used the wrong phone cord between the HB and the serial interface board. Fred recently answered that question on this group, I'd direct you to the archives of this list but I don't know where that is. The phone cord, I *think*, is (...) (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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It looks like I used a network style RJ11 instead of a telephone style RJ11. Thanks for everyone's help. Colby Leider Dartmouth College (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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did you perchance use a different telephone cable when plugging in your HB? if so, please see the FAQ for an answer. if not, there was some kind of short, either at the rj11 connectors or on the HB. -fred In your message you said: (...) (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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| | Re: charger board
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It looks like your resistors are burned due to the short circuit between pin3 and pin4 of J10 on the charger board. I guess what you need is to replace those resistors (R11 and R12) and yellow LED, and the charger board will work again. Those (...) (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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Hello all, I was charging my HB the other day, and suddenly, the two resistors right by the yellow "charge" LED on the serial interface ckt. went up in smoke. Has this happened to anyone else? Colby (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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| | Unsubscribe...
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Unsubscribe...Thanks. Johnny. (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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| | Sorry for my questions... :)
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Well, i'm sorry for the interference . You are building robots, and right now (only right now) i.m working with handys but in other way. I promise send you all the information about my project and really i expect be useful for all the mailing (...) (27 years ago, 12-Aug-97, to lugnet.robotics.handyboard)
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| | Re: positioning of robot
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What is your application of the robot? My experience has shown that different wheel configurations lend themselves naturally to different applications: In general, think about how you want your robot to move and turn, and what sort of terrain it (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Thanks fro the reply...
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At this point we're not quite into Handyboard questions, but since the answer might help others, here goes... (...) German, the world wide web is an amazing thing. The most amazing part isthe amount of information that is available on it. I took (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | HK HB
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Gregg, I bought the assembled board. However, the supplier also sells unassembled kits. Check (URL) for the descriptions. Additionally, in further communications with the supplier, he mentioned that I could have avoided the wire fee by sending a (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | Hall Effect Trans.
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I have to measure the speed of a wheel similiar to a bicycle wheel. I figure the best way (or at least one way) to do it is to use a hall effect transistor switching into a counter. Does anyone have any suggestions for a part/manufacturer to use for (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Hall Effect Trans.
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I'd like to hear what you come up with as well. Presently I just use the magnet/coil sensor pairs that you can buy in any bike store. You just hook the shield to ground, and the other wire to, say, an input-capture pin of a 68HC11, with a 3.3 K pull (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Hall Effect Trans.
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I'd like to hear what you come up with as well. Presently I just use the magnet/coil sensor pairs that you can buy in any bike store. You just hook the shield to ground, and the other wire to, say, an input-capture pin of a 68HC11, with a 3.3 K pull (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | Thanks fro the reply...
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Well, so thanks fro your reply, you make feel live. You are rigth , Fred are right and so chuck are rigth.I'm very obsesive and may be not exist a answer short to my questions , sorry for my self. Your answer is very useful for my, but i don't know (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | More juice
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Can you parallel a 9.6v eight pack NiCad cell to the HB Nicad pack? Has anyone done this with success? If so, does it charge properly? jm (...) (27 years ago, 11-Aug-97, to lugnet.robotics.handyboard)
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| | re: magnetic card readers
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dear german, i think what's going on is that you are asking very open-ended questions that require a lot of work to compose a helpful response. if i remember right, your earlier question was with regard to networking using the spi port of long (...) (27 years ago, 10-Aug-97, to lugnet.robotics.handyboard)
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| | positioning of robot
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Hello, First my apolgies for my bad english (my dutch is mutch better but afcouse thats becoust dutch is my first language). anyway. im working on a robot and use lego to test the best way for moving a robot. i see 3 options.. 2 weels, 4 weels (like (...) (27 years ago, 10-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Voltage
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Yeah, the 12V goes into the motor power pin of the L293's. Thus you will get a higher than 9.6 motor voltage. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical (...) (27 years ago, 9-Aug-97, to lugnet.robotics.handyboard)
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| | Re: 3v motors
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Yeah, you're right. I hadn't realize that constraint of the L293's. Sorry :b ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the (...) (27 years ago, 9-Aug-97, to lugnet.robotics.handyboard)
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| | Voltage
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Hello all, Fred Martin may have said something to this list about 12v being ok as a battery voltage.If so does the motor drive voltage go up accordingly? Thank you for your help, Joe Martin Email:joema@mpx.com.au (27 years ago, 9-Aug-97, to lugnet.robotics.handyboard)
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