 | | Grounding robots
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(...) By ground, I just meant the HB ground. The important thing is just that everything in an electronic system share the same ground; voltages are relative, and the ground is just the shared reference point--the point arbitrarily defined to be (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | Continuous charging
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Graham, J. Todd wrote: <snip> (...) If you use zap charge mode, you'll end up cooking your batteries unless the HB draws just the right amount of current. If you use any motors or other high current devices connected to the HB, trickle charge mode (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | help again
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thanks to the immediate responses from the mailing list I was able to remove the connector bug from my handy bosrd and now my interface board is complete. But the handy board does not enter the download mode The sitution is as follows: Once I (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | RE: gpu5x??
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Step 8.2.1 of the Handy board Assembly insructions has code that lights a motor port LED when a TV remote is aimed at the infared demodulator it says to type the following at the IC prompt: while (1) {if (4 & peek(0x1000)) fd(0); else bk(0);} (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | Capacitors Voltages?
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May I know the voltage of the capacitors for the Handy-Board partlist. Or where can I find out (web site)? Thank u. (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | Re: CD-ROM used as Audio CD player
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Never done it before, Alf, but here are a few hints. First off, learn about the IDE interface. These CD-ROM drives are cheaper than SCSI. Also, try to find source code for a CD player on-line, and examine it to see how it works. Last, why not just (...) (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | Re: gpu5x??
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Hi I have those infrared sharp devices "Gpu5x or something like that" how can I get it to light an led when it sees the transmitting infrared led? A schematic or page to go to would be much appreciated ! thanks -Mike (26 years ago, 16-Jan-99, to lugnet.robotics.handyboard)
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| | Re: RESEND--Re: Help with Power Scheme, Please...
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Thank you for your help :) Just one more questions, please... How can I ground a mobile robot ? Best regards, Andre. (...) | (...) | (...) | (...) | (...) |------+ (...) ===...=== Andre Philippi - Applications Developer | Phone: 626-296-5016 (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Motor output LED
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Hi all! I got a question. Whenever I connect the motor outputs to a scope (I wanted to read the output of the HB), the LEDs light up even with the output off (ao())... Can anyone explain this to me? Thanks. Keith (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | RE: RESEND--Re: Help with Power Scheme, Please...
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In the example, are there any advantages or disadvantages in using a voltage regulator (such as a 7805) to dropping the voltage from 12v to 5v as opposed to using a diode string? Also, I guess no one had an answer on the earlier question of running (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Scrolling through the LCD messages by the knob
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Simon, This shouldn't be too difficult to create...but it could be a real waste of memory unless it is real important issue. The reason why is that you would have to save the messages in memory. You'd have to decide if you wanted to fill all the (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Scrolling through the LCD messages by the knob
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(...) Yes, and it is totally trivial to do so. I don't have my sources here at the moment, but it is roughly like this: c = readknob(); /* or whatever the cmd is for reading it */ if ( c < 64 ) { print "a"; } else if ( c < 128 ) { print "b"; } else (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | RESEND--Re: Help with Power Scheme, Please...
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I apologize for having sent the following with extra line-feeds in it; Here it is again: The main problem I see is with how you label the voltages at various points in the circuit. If you have a 12 V battery, the low voltage end is usually called (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Scrolling through the LCD messages by the knob
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Hi, i am looking for a program to use the knob for scrolling through messages. i really need this, because i have to output more than 32 chars (and there isnt enough space for a larger display ). i have read about using the knob for scrolling on the (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | UCOS
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Has anybody tried to use HB with the ucos (the real time OS developed by Jean Labrosse)? Thanks. Aldo Gentile aldo@lacapital.com.ar (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Help with Power Scheme, Please...
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The main problem I see is with how you label the voltages at various points in the circuit. If you have a 12 V battery, the low voltage end is usually called zero volts and the high voltage end is called +12 volts (although the numbers are just (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | HBL: EPROM Microcontrolers
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FROM: Cesar Mello / cmello@cpovo.net Hi friends, Sorry if this subject isn't much related to the Handy Board, but I'd like to know something about the HC11 Eprom based microcontrollers, like the MC68hc11a8p. Does it have any means of booting from (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | HBL: EPROM Microcontrolers
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FROM: Cesar Mello / cmello@cpovo.net Hi friends, Sorry if this subject isn't much related to the Handy Board, but I'd like to know something about the HC11 Eprom based microcontrollers, like the MC68hc11a8p. Does it have any means of booting from (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Mobile robot QT demo in my HP
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I have Quick Time movies of my robot going about life! visit: www.cooper.edu/~mar Background: As a Masters student I created a mobile robot using the Handy Board. Many of you may remeber me bugging you with questions. :) Well, that all payed off and (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | CD-ROM used as Audio CD player
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Hi, I'd like to control an IDE or SCSI CD-ROM with my HB in order to play audio CDs (ff, rew, shuffle etc.). Did anybody do that before? I'll appreciate any hint! Best regards, Alf (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Clearing the LCD
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I've always used printf("\n\n"); hope it helps! --philsky (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Help with Power Scheme, Please...
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Hi Everybody, I'm trying to hook-up the Handy Board, an R/C car chassis, and a wireless camera together, and here's what I was planning to do about the power... +---...---+ +---...---| Handy Board +------+ | +12v +----+-----+----+ | | +---...---+ | (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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Try here: (URL) luck, - - - Nick - - - (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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(...) I don't know of a supplier for the SN754410, but the originally specified L239D is readily available from: Maplins (code No. AH80B) for 3.99 UKP inc VAT, or Farnell (code No. 699809) for 5.04 UKP + VAT Both of these companies have UK websites. (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Clearing the LCD
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Hi everyone, Quick question! What's the IC command to clear the LCD? Thanks for the help in advance. Bill Denzel Senior Mechatronics Student California Polytechnic State University San Luis Obispo (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | FingerBoard Users?
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I want to add a minimal board as a slave to my HandyBoard. My choices seem to be the FingerBoard, MiniBoard, and BOTBoard. At this point the FingerBoard is my first choice. Is there anyone here who has used this board? Any comments? Pros and cons of (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Help with cables
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milind, To check your phone cord, hold the ends together so that the wires are away from each other. Look through the clear connector. The wire colors should line up in this orientation. There is a little more to the DB-25 issue. "Null modem" vs. (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | assembling the pcode
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hi i've recently modified the pcode.asm file to make the timer interrupt occur at 2KHz, rather than 1KHz. does anyone know how i'm supposed to assemble/compile this pcode.asm file into the pcode_hb.s19 file that will be loaded into the Handyboard? (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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(...) If you can't find the TI chip try doubling up on the L293D by piggybacking them on top of each other for added amps. You can use one L293D with an additional L293 on top of it (the 'D' has protection diodes that you MUST have). You may need to (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Help
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thank you for the apt and quick reply. if you could tell us what is the difference between a straight through cable and a null modem cable it would be great( we are using a 25 female to 25 female connector) and how to identify the difference between (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | (no subject)
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Dear Friends, We, at VESIT ,Bombay,India are making a rover which is capable of navigating itself and avoiding obstacles.For this,we are using the handy board.The soldering work has been completed and we are now trying to use 'download software' (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Serial interface
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Re Serial interface problems in Bombay When I assembled the inteface board, I made the mistake of putting a male connector on the interface board. I had the same problems as you and this turned out to be the obvious cause.... so double check all (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Digital troubles
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Hi all, I am assembling a handyboard and things have gone well until I got to the section 7.1.1 in the assembly manual. I assembled the digital inputs, and when I used the function testdigitals(), the start button is the only one that will register (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | troubleshooting
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The interface charger board is soldered and the max232 chip has been tested works perfectly and the green led SER glows on shorting the pind of max232 and the J3 socket. But when the host computer is connected and the proper downloaded is connected (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Re: serial interface trouble
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SHETTI.NITIN.MANGESH wrote: <snip> (...) The most common problems seem to be with the types of cables and the serial port settings. Make sure that you are using a straight through cable (not a null modem cable) to connect the HB to the serial port, (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | RE: interface problem
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This can take a long time. Start by making sure that the cable is correct. You can do this by changing the Rx and Tx lines. If this does not help de Maxim serial driver can be faulty. Last check the solder joints.I once looked at them and could not (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Radiometrix address
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Radiometrix Ltd. is at lemosint@ma.ultranet.com Contact Danny Lemos 508 798 5004 ___...___ Chad Pennebaker, President mailto:chad_pennebak...ouglas.com ** Creators of the Douglas CAD/CAM System for Macintosh PCB Design ** Douglas Electronics, Inc. (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Wireless Handyboard Link ?
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I obtained the RF wireless kit ( HP Series ) from Lynx Technologies a while ago, and I have not had any success yet. My guess is that the handyboard is unable to "Synchronize with the board" with the half- duplex communication provided by the kit. I (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | GP2D02 Interface Question?
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Attached below is IC code for a GP2D02 rangefinder. This is a slightly enhanced version of code from Bjorn Astrand. My question relates to the use of TMSK1 in the code. From reading various M69HC11 documents, I think (???) that I know what bits are (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Downloading problems
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The other day I posted to this board that I was having downloading problems with a HB which once had none. Simon very kindly E-mailed me reminding me about the proper phone cable. Seeing he was the only one-I-by necessity have become an expert. (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Re: motor ports
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Russell, Just a suggestion from experience. Before you invest a lot of time developing hardware to expand the capability of the Handy Board, I suggest you write the program. Just "stub out" the motors you don't have with dummy subroutines, or for (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Generic expansion board?
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Has anyone ever created a generic expansion board for the HandyBoard? What I mean by generic, is a board with say a .10 grid hole pattern and some power and ground traces . A board or boards like this with custom circuitry, could be stacked on top (...) (26 years ago, 13-Jan-99, to lugnet.robotics.handyboard)
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| | Anyone have the HB in continuous powerup?
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Hi all, Is anyone using the HB in a continuous powered up situation? Any problems with it? Also, Anyone know how to use a Timer circuit (Date & Time) with the HB? I'd like to have timed (Daily/weekly/monthly) events. Thanks! Gerald (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | The Onboard memory Circuit
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I have some questions about the handyboard memory: 1) Does it matter if i use a 70ns Eprom instead of the 100ns one? 2) Can you use EEproms or FlashRoms instead of the Eprom ? 3) Can i use more memory than the 256 KB ? And is there a exchange (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | RE: Motor Ports
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Russ, This would not suffice. The PCODE would need to be changed as well. The end result of the motor interface routines in C in LIB_HB.C is that RAM locations 0x0E, and 0x22-0x25 have the direction and speed pattern info for each of the four (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | Re: UCOS
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I'm also very interested in using UCOS in HB. IC is very slow and have very stupid multitasking. Until now I find only basic HB library for ICC11 ((URL) library is at ftp://ftp.imagecraft.../libhb.zip It may by usable with UCOS. ===...=== Andrew (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | improper removal from list.. i apologize.
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please remove jackedin@earthlink.net from the handyboard mailing list.. this is not the proper way to ask, but am aware of the trouble for the admins to remove a user. i cant access earthlink, any other way than fetchmail at the moment.. thanks and (...) (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | list
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Plese remove me from the e-mail list (26 years ago, 12-Jan-99, to lugnet.robotics.handyboard)
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| | Fw: 360 degree ranging
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I'm building a theory about how to make a 360 range finding system. It only needs to be accurate out to, say, a foot or 18 inches. basically it's a "before you bump" bump system. I've thought of using a series of IR emitters/detectors in a circular (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | 360 degree ranging
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I'm building a theory about how to make a 360 range finding system. It only needs to be accurate out to, say, a foot or 18 inches. basically it's a "before you bump" bump system. I've thought of using a series of IR emitters/detectors in a circular (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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(...) There is nothing wrong with using fuses (or circuit breakers) on motor circuits. This can protect the chips, AND the motor. (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | TI SN754410
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Hi, this must have been asked before. But where can I get the TI SN754410 from On-line ordering if possible or a UK supplier. I managed burn one out on my Handy Board at the weekend :o( is there a way to protect these chips from motors that take too (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | RE: HB and Acceleration
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Hi Philsky; I've seen videos of some of these "serious amateur" rocket launches, and from that I would say acceleration is your prime concern, followed by shock and vibration. I'm assuming you will substitute a lightweight 9V lithium battery for the (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: HB and Acceleration
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(...) Most likely not, Max, unless I save up a lot of money and get a daVinci organizer or something like that and write up a donwlink program... :-) There's this thing here in Wisconsin (And in Michigan and Iowa) called "Rockets for Schools" It (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | cant control motor speed
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dear fred and readers my motors is 30V. i am using the external batteries as instructed on the website. but i cant control the motor speed using the command: motor(0,...) i then remove the external batts and supply power to the other power pts(top (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | DL problems
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I put together the HB shortly after it first became available. This is key because it worked-downloading and all. I put it down for a year because of family problems but all that time left it plugged in because of the Ni-cad. I feel that should (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Motor Ports
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Hi all, Is it possible to add more motor ports to the handy board by simply copying the existing motor drive circuit and putting them on the expansion header where the extra chip select lines are. if so what changes would be needed to make IC (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | motor ports
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Hi all, Is it possible to add more motor ports to the handy board by simply copying the existing motor drive circuit and putting them on the expansion header where the extra chip select lines are. if so what changes would be needed to make IC (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Expansion board motor outs???
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I just wanted to verify something before I went and purchased the expansion board. Are the HB's motor outputs still available when using the expansion board. It is unclear in the doc. Thanks, Aaron (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Wireless Handyboard Link ?
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Hello, I am investigating createing a wireless serial link between my PC and handyboard. The cheapest solution I've found is the RF module from Lynxmotion. Does anyone have any experience with this, or perhaps suggestions for simpler or more (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: HB and Acceleration
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(...) I presume that you are not planning on using my infrared control software! Good luck in your project, it sounds like fun. Wanna tell us more about it? /Max (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | HB and Acceleration
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Hello, Does anyone here know how acceleration will affect the operaion of a handyboard, and also will sudden changes in altitude (like, 3,000 feet in less than ten seconds) affect it's operation? I have a High Power Rocketry launch coming up in May, (...) (26 years ago, 11-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Wireless Handyboard Link ?
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-----Original Message----- From: Aaron Edsinger <aarone@sirius.com> To: handy <handyboard@media.mit.edu> Date: Sunday, January 10, 1999 1:04 PM Subject: Wireless Handyboard Link ? Hello, I am investigating createing a wireless serial link between (...) (26 years ago, 10-Jan-99, to lugnet.robotics.handyboard)
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| | Re: buying IS1U60, DS1233-10 in germany
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a reseller for the IS1U60 is RS rs-gmbh@rs-components.com FAX 06105/401-100 Hessenring 13b 64546 Mörfelden-Walldorf a reseller for the DS1233-10 is FARNELL FAX 089/6135901 Grünwalder Weg 30 82041 Deisenhofen bei München I hope it helps ... SR. (26 years ago, 10-Jan-99, to lugnet.robotics.handyboard)
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| | buying IS1U60, DS1233-10 in germany
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Does someone know a reseller in germany who sell the IS1U60 and/or the DS1233-10 (just one of each) ? thanks for reply (26 years ago, 10-Jan-99, to lugnet.robotics.handyboard)
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| | Failure to Boot Up
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I recently purchased the Handy Board 1.2 and am running the HC11E1FN. I also purchased the IC compiler from Newton Research Labs. Everything worked great. I hooked up a hobby servo to PA7 and it ran well with the supplied c routines. However, after (...) (26 years ago, 9-Jan-99, to lugnet.robotics.handyboard)
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| | Re: A newbie question
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if your robot is not allowed to even partially cross the duct tape, you must have an additional inner marking that the robot can see so it knows it's near the "danger zone" and can change direction. f. (...) (26 years ago, 9-Jan-99, to lugnet.robotics.handyboard)
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| | Re: supplier for Sharp IS1U60 infrared demodulator
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All- Ok, I'll re-phrase..... Does anyone have the name and supplier of a substitute (for the Sharp IS1U60 infrared demodulator) that they have gotten to work reliably? Thanks. Steve (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | A newbie question
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I want to program my HB so that my robot will be able to navigate around obstacles. The navigation area is a rectangular area boarded by a silver duct tape. My robot shall not touch the tape. Does anyone have any idea of how I can implement this? (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | Re: hexipod walker
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Timing 12 servos with the HB could be done. So far we are using 8 servos which don't use much cpu resources at all. But 1 compare output can only time 8 servos because of the servos timing requierments without using a lot of cpu time. So a second (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | RE: hexipod walker
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The only problem with using individual servo control is speed, the time it takes to move 12 servos by individual commands is rather long. This has the effect of slowing the walker down considerably. A dedicated controller such as the MSCC11 that I (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | RE: hexipod walker
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I believe the best thing to do is use separte controlers (e.g. PICs) to control the specific motions of the servo's. This will allow you to have more control over the HB. There are several places on the web (e.g. (URL) where you can find info on (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | RE: hexipod walker
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I previously posted information on the list about the controller and chassis that I am intending on using for my six legged walker so checking the archives may be useful. I am using an MSCC11 from Novasoft as a servo controller, I don't believe the (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | hexipod walker
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Hi all Iam thinking about making a six legged walking robot using servos and wondered if anybody has already built one. I want to use two servos per leg one for lifting and another for the sweeping action so giving 12 in total. One thing i want to (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Type conversion IC.
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You can do this in IC 3.2, perhaps not in the freeware version. -----Original Message----- From: Christopher Prosser <christopherprosser@yahoo.com> To: FEDSANTE@tin.it <FEDSANTE@tin.it>; handyboard@media.mit.edu <handyboard@media.mit.edu> Date: (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | New mail list for legged robots
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I decided to jump off the deep end and have created a new mail list for anyone interested in legged/walking robots regardless of CPU or "brain board". You can join this list by sending a mail message to legged-robots-subscr...groups.com or you can (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | Re: hexapod walker
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I have been researching this exact topic for almost a year now. I started off looking at the Handyboard do to its popularity and strong robotic application design but ultimately I've decided to use one or more Atmel processors do to their speed and (...) (26 years ago, 8-Jan-99, to lugnet.robotics.handyboard)
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| | SENSORS AGAIN }:
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Ok Ok... Sorry ... Here I have a Photo of these Sensors... The number on it is : IN THE FIRST LINE : QRB1114 IN THE SECOND LINE: QT820 It works with infra red... And I bought it in a sensor pach at: WWW.GLEASONRESEARCH.COM (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | RE: Sensors
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I believe you can get them from mouser electronics. I bought the square ones from them a couple of weeks ago. www.mouser.com Bill Denzel Senior Mechatronics Student California Polytechnic State University San Luis Obispo (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | Sensors
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I ordered these sensors at Gleasonresearch in a sensor pack, but where can i buy them without other stuff... I need about 4 of these: they look like this: ______ / __ \ / I__I \ /___...___\ I I I I I I I I I I I I I I I I I I I I AND then i have an (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | RE: GP2D02?
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Has anyone found a source for the GP2D02? -----Original Message----- From: Lewis Patterson [mailto:lewis@bsc.edu] Sent: Wednesday, January 06, 1999 1:13 PM To: handyboard@media.mit.edu Subject: GP2D02? If anyone who has successfully interfaced the (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | supplier for Sharp IS1U60 infrared demodulator
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Hello Folks- A couple of months ago I built a HB with the exception of one part... U15 (Sharp IS1U60 infrared demodulator) ... I now have the need. I am looking for the info for a supplier or individual that will sell a small number(2). I'm in the (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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unsubscribe Thierry VOINIER CNRS-LMA-IM 31, Chemin Joseph Aiguier 13402 Marseille France Tel : 04 91 16 44 73 Fax : 04 91 22 08 75 E-mail : voinier@alphalma.cnrs-mrs.fr (URL) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | RE: GP2D02?
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I own an handy-board now for 2 months and I have now 2 GP2D02 connected to it. (took me 1 hour to hook them up and test) You need a digital output-pin(like one off the spi-pins) or make use of the expansion-board, which has digital outputs. I (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | Position Control Question ?
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Hi Everybody Through reading every day e_mails, I have been led to beleive that I have to be carefull in choosing a servo motor brand, so could any body help me in choosing a servo for my application which is a position control,I mean a ref. and a (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Type conversion IC.
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I don't have IC handy, but you should just be able to do a hard cast. float aFloat = 1.3; int anInteger = 0; anInteger = (int) aFloat; /*cast the float to an int */ /*you can also do it in a function call*/ FuntionTakesAnInt( (int) aFloat ); Hope (...) (26 years ago, 7-Jan-99, to lugnet.robotics.handyboard)
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| | type conversion
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Hi to all And HAPPY NEW YEAR. I have a question. How can i convert a floating variable into a integer variable? I must send via serial line the result of the functions SECONDS(). Thank Federico E-mail:fedsante@tin.it (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | Type conversion IC.
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Hi to all And HAPPY NEW YEAR. I have a question. How can i convert a floating variable into a integer variable? I must send via serial line the result of the functions SECONDS(). Thank Federico E-mail:fedsante@tin.it (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard power supply
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what is the amp-hour rating of each cell. standard AA rechargables are 500 to 800 mAh. if your cells are significantly different than this, the charging might not work properly. generally though i don't see too many probs with this. you might need (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | GP2D02?
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If anyone who has successfully interfaced the GP2D02 to the Handyboard would share that knowledge with the less experienced, it would be greatly appreciated. Thanks! (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | Re: using external batteries
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the label on the diagram says "cut motor trace here" with an arrow that points to a dark band. if you look at your HB, it won't have a dark band. that's where you need to cut. slice through the green-coated trace where that dark band on the picture (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | using external batteries
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dear readers and fred, i read the instructions on the website on how to use external battaries. the problem is: - in the website, i couldnt see the copper trace properly which we need to cut in order to use the external batteries port. could any one (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | Re: servo help
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try running the servo off of a separate power supply; e.g., 4 AA cells. you'd connect the servo red wire to the battery + lead, the servo black wire to the battery - lead, and also connect the battery - lead to the HB motor ground. in general it is (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | Re: INTERACTIVE C
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We have developed a library of functions so that one can write HB-style code and run it either on the HB or compile it with the library and run it on a PC. It hasn't been thoroughly debugged, but works consistently (There are some timing issues that (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | Interrupt Request line
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Hi all, Does anyone know how to get a the interrupt line on the handyboard. Been looking at the documentation, and was a bit surprised that the interrupt was not available. Am I missing something? Charles Hacker Lecturer in Electronics, Computing (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | Trinity Fire-Fighting Contest
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Has anyone built robots for the trinity fire-fighting contest. I would like to hear your design and what kind of major problems that you encountered in building it. A website would be great. The reason for my interest is that I need to include any (...) (26 years ago, 6-Jan-99, to lugnet.robotics.handyboard)
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| | servo help
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I could really use some help connecting a Futaba 3101 microservo. I bought the micro servo to reduce the weight instead of the standard S148 servo. Anyway, I connected the red line to the HB +5V supply on the SPI expansion header. The black wire to (...) (26 years ago, 5-Jan-99, to lugnet.robotics.handyboard)
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| | Re: INTERACTIVE C
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If you use icc11 (a cross compiler, not an interpreted compiler) for the handyboard (they have a library for controlling the handyboard) then printf() calls write to the PC and lcd_write calls write to the LCD. --Chuck icc11 is available from (...) (26 years ago, 5-Jan-99, to lugnet.robotics.handyboard)
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| | Handyboard power supply
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Hi Fred and other, I intend to use grandcell rechargable batteries to supply the HD. Each battery is 1.5V . If I supply 7 batteries of total 10.5V to the HD , is there any problem ? rgds, phillip (26 years ago, 5-Jan-99, to lugnet.robotics.handyboard)
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| | INTERACTIVE C
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Dear Friends, In Interactive C,the printf statement writes messages to the LCD screen.Is there any way by which we can write to the monitor screen of the computer from which the programs were downloaded? Yours Sincerely, Nitin (26 years ago, 4-Jan-99, to lugnet.robotics.handyboard)
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