 | | Parts buying help.
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To the wise HB builders, First can I us a poly-styrene cap of the same value instead of the polypro?? Can I use a 3.92 1% in place of the 3.83 1%, what will happen?? Can I use a -8 instead of a -12 or -10 32k memory chip?? Has anyone created (...) (25 years ago, 21-Jun-99, to lugnet.robotics.handyboard)
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| | Update for HandyBoard Buffalo
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Hello all, Just to let you know, I have updated my HB_Buffalo development system. It can be obtained at the following web address: (URL) is it: HB_Buffalo is a monitor operating system that facilitates the development of machine code programs on the (...) (25 years ago, 20-Jun-99, to lugnet.robotics.handyboard)
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| | Re: IRPD sensors
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Hi Evan, Did you ever get any code that would work for the irpd sensors? I too have a line tracker and a irpd proximity detector but have not connected to the HB. I purchased them in kit form from Lynxmotion . ---...--- (...) (25 years ago, 20-Jun-99, to lugnet.robotics.handyboard)
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| | Where can I get a Sonar?
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Hallo, I am searching a ultrasonic based mesurement system. Has anybody a circuitry? regards, Jens (25 years ago, 20-Jun-99, to lugnet.robotics.handyboard)
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| | Re: My sonar doesn't work!
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Did you install a .1uF capacitor at C7 on the sonar boards? The 6500 doesn't work without that capacitor. Ross M. Tonkens, M.D. Medical Director Primary Care of Nevada 100 North Green Valley Parkway Suite 240 Henderson, NV 89014 702 914-7120 VOICE (...) (25 years ago, 19-Jun-99, to lugnet.robotics.handyboard)
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| | digital in's and out's?
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Hi, I want to construct my own expansion board with as many digital in's and outs as possible!! I know this can be done but I don't know where to start. I am asking the seasoned 'botters for some help. Thank you in advance for any help you might (...) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
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| | Re: digital in's and out's?
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Dear Steve, Nobody wants to hear this said, and I hate to be the one to do it, but you can start by reading the data available on the Handy Board web site (quick duck to avoid thrown volt meter). Fred has done what you want to do (memory-mapped (...) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
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| | digital output TOC3
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HI! I would like to know how I can use the TOC3 output in the handy board to generate a PWM. Thanks in advance Berri from university of Sherbrooke (Canada) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
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| | Application notes on serial memory and microcontrollers
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I found this interesting link, I think it's also well known to someone: (URL) at number AN609 ;-) (25 years ago, 18-Jun-99, to lugnet.robotics.handyboard)
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| | Memory Problem
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Has anybody use the 62256LP-10, instead the 62256LP-120. Because I use and it doen´t work, I´m starting to think, that it may be a HandyBoard problem, not a memory one. Daniel ---...--- " `BETTER´ IS THE ENEMY OF `GOOD ENOUGH´" ---...--- (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Memory Problem
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Daniel: Yes I am running two handy boards with 62256LP-10 's that I have stripped from a scrap controller board of some sort. They work just fine. Total cost $0.99 plus effort to desolder them from the board. Regards, Bart Schrijver. ___...___ (...) (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard Assembly Problems
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Umar: This may sound trivial to others, but here is what I think you should do. When a new handyboard is switched on without any software loaded that drives the LCD display, you should see the first line fully dark and the second line light. So (...) (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
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| | Handyboard Assembly Problems
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I am assembling a handyboard, and am at stage 6.0.4, where I plug in my LCD screen for the first time. When I turn the handy board on, instead of getting the dimly lit arrays, I get a top array that is strongly lit, and bottom array that is lightly (...) (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
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| | Re: IC Bible?
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(...) Did you mean Interactive C manual? Just a thought, Duncan (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
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| | Re: 6500 sonar
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(...) TI has a *very* liberal sample policy. Visit: www.ti.com and do a part search, then order online. Cheers, Duncan (25 years ago, 17-Jun-99, to lugnet.robotics.handyboard)
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| | IC Bible?
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Where can I get the best IC manual there is? ___...___ Steve Wall Sir Sandford Fleming college Swall@flemingc.on.ca (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Re: IC Bible?
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(...) Gray's List is pretty good. Gives you all known links to the semiconductor manufacturers, from which you can usually obtain data sheets in PDF format, or at least get contact info for the company and request databooks. (URL) Mills, WE7U (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board
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Did you initialize them? You have to issue the initialization command to turn them on. init_expbd_servos(ON) (where ON=1) init_expbd_servos(OFF) (where OFF=0) turns them off Then give the servo a positioning command. servo(x) = y (where x is servo (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board
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Did you try something like init_servo0(1) {I'm not sure I got the syntax correctly}. It enables the specifice servo output to function. ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Expansion Board
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Does anybody know how to get the expansions board servo outputs to work. I tried calling the function but I'm not sure if I have the correct programs loaded into the handyboard. (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Radio Modem
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Here is an nice summary of a variety of wireless data products: (URL) have used metricom modems to control robots and have had good success with them. They are not terribly inexpensive but work well and have a link budget sufficient to cover (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | 6500 sonar
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Does anybody know where I can get the Texas Instrument TL851CN and SN28784N chips. I found some on the web but I had to order 50 of them at 3$ a piece. Does this mean that I have to order the Polaroid 6500 Ranging Module for 34$ through Acroname. (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | motion sensor by eltec
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Hello all, Thank you for all of your kind help in the past. Here is another question that I hope is worthy of your time... I have a motion sensor purchased from Acroname (Eltec, I forget the part number). It works, as I had written a small program (...) (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Radio Modem
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Hi, I'm looking for a radio modem or something like that, does anyone know where one -not very expensive- can be found ? Thanks Stefano (25 years ago, 16-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Inductor
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Tuesday, 15th day of June, 1999, 12:41 AM, EST. Bart, You are right, but I also heard that HB is designed to take care of reverse emf WITHOUT a induction coil. The board is protected. -Satish. ---...--- Fortune cookie for the mail...generated (...) (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Inductor
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Denn: If I am not mistaken, and please correct me if I am wrong (anybody), but I think the inductor is in the circuit to protect the NiCd battery pack and rest of circuit against possible reverse electro-mechanical induction by the DC motors. Motor (...) (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | Inductor
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Hi, I see the HB circuit and found the 1uH that connect the GND Batteries and GND. I want to know the purpose of this inductor. Can I replace it with other value or not use it . Thanks (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | Re: about interrupt driven serial port input queue available for testing
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Just configure your Hyper terminal to use dirrect connection to COM 1 or 2 instead of the modem! (...) (25 years ago, 15-Jun-99, to lugnet.robotics.handyboard)
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| | about interrupt driven serial port input queue available for testing
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Thank you mat for your advice. But i coudn't under stand what should i do with the dial-up that is required for the hiperterminal connection. With out establishing a conection i can't use hyper terminal i guss. Could you please give some detailed (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Question about interrupt driven serial port input queue available for testing
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raj, I assume you could use windoze Hyper-terminal. Matt -----Original Message----- From: raj k <robo_helpmate@yahoo.com> To: handyboard@media.mit.edu <handyboard@media.mit.edu> Date: 13 June 1999 00:35 Subject: Question about interrupt driven (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Battery options?
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(...) Should work fine. If you use the "Zap" charge mode, make sure the NiCad's are designed to work on fast charging. Some are, some aren't. Also, make sure you buy them and dispose of them as a set. If you start mixing and matching NiCad's, you'll (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Battery options?
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I was wondering what are my options for the HB battery. Would it be possible for me to get 2 battery holders each carrying 4 cells each and fill them with regular NiCad cells say, The one's they have at radio shack? Would this be a viable options to (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: H-bridge
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I think that the Robot Store ( www.RobotStore.com ) sells a variety of H-Bridges. I had no problem wiring up my own LMD18200's , however! As a matter of fact, I obtained 2 LMD's for free from the Natinal Semiconductor Website through their sample (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: IRPD sensors
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Evan, Who is the supplier (manufacturer) of your board, and what is the part number? Gary Livick (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: serial
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Monday, 14th day of June, 1999, 12:32 AM, EST. On similar note, does anybody know how I can set up the baud rate on my Win 95 machine? -Satish. (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | IRPD sensors
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I have gotten some Infrared Proximity Detectors (IRPD), but no instructions for using them with the handyboard. These are set up with an infrared LED on each type of the sensor, and they are intended to give left/right/front detection. The program (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Motion sensor
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Hello all, Thank you for all of your kind help in the past. Here is another question that I hope is worthy of your time... I have a motion sensor purchased from Acroname (Eltec, I forget the part number). It works, as I had written a small program (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | H-bridge
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Hello, Does anyone know if there is a vendor that sells a H-bridge that is ready to be used for the Handy-board, instead of me having to wire up a National Semiconductor LMD18200. Thanks for your time guys. Juergen Lunkwitz Drexel University (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | serial
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Hi, I am also having some problems with serial communications. I am trying to send information back and forth between linux and the handyboard. I wrote a simple serial sender for linux and have been trying to send to the handyboard. I have two big (...) (25 years ago, 14-Jun-99, to lugnet.robotics.handyboard)
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| | Re: Precision Resistor?
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I actually used a small 5K POT (precision, multiturn), and tuned the output for 38 KHz. Hope it helps. K.L. McKinnon (...) (25 years ago, 13-Jun-99, to lugnet.robotics.handyboard)
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