 | | Re: H-Bridge
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Hello François, HandyBoard group, We had a similar problem when we tried using an R/C model as a mobile base platform for our robot. Searching the net turned up the LMD18200 (3A, 55V H-Bridge) from National Semiconductors, which was suitable for (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Power
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Richard wrote:<snip, stuff deleted> (...) Ah, that takes me back a bit. I built one in the late 60's from plans in Practical Electronics, used about 40 transistors and mechano bits. Its collision avoidance sensor was based around an OCP71 photo (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | H-Bridge
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Hello, I am also searching for a preassembled H-Bridge (12 Volt max 10 Amp in continuous mode). If anyone knows a good place to order one, I would be very interested. (We already tried to build the H-Bridge from Chuck Mac Manis but its components (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | H-Bridge
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It is clear to me that if i even attempted any work with construction and installation of a H Bridge for my handyboard it would be left a blackened, smoldering wreck. So this is my question.....is there any where to get a preassembled H-bridge from (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Power
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I've built a few of his machines myself. The "Neural Net" is a 74ls244 set up as a shift register with RC networks between each stage. The walkers go forward ok, but can't turn or back up. Mark Tilden's very talented at mechanical design, though! (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Power
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I've been having very good luck with designing an entire robotic ecosystem using only analog components! Predators, Herbivores, plants, the works! (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Polaroid sonar connector
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(...) According to my measurements, the flat flex cable that comes with the Polaroid kits is 1.25 mm (or 0.05"), so it would probably not be quite compatible with the parts that Digikey offers. I looked exhaustively through the Digikey offerings, (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Power
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I didn't see the program, but I have an article my brother cut out of a newspaper and sent me, the guy's name is Mark Tilden, he makes all his robots out of old walkmans and pagers etc. I find his claims kind of hard to believe also. He has a (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Low battery detection
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sure, it will drain the battery, but if it's a low enough drain, you don't have to worry about it. for example if you have a 10 amp-hour battery, drawing .5 mA would take something like 830 days to drain it. I wouldn't worry too much. to calculate (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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| | RE: Nowbody can help me???
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I never say imagecraft C can't use peek and poke???? I can see, you don't understand my mail. Wich i see is : make beep the handy is not simply put a byte in a place into the memory, no way. you have to write a interrupt routine , and do adiitional (...) (27 years ago, 17-Mar-98, to lugnet.robotics.handyboard)
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| | Re: pneumatics
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I think it was the crazy guys in Austin (the ones that put on Robofest) that had a 'portable' air reservoir that consisted of a 2 liter coke bottle, a relief pressure valve and tubing. The coke bottle was filled about a third of the way with water, (...) (27 years ago, 17-Mar-98, to lugnet.robotics.handyboard)
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| | RE: Low battery detection
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Can you translate this into "EE for dummies?". I slowly start to grasp some of the idea about voltage dividers but still don't understand. Won't this setup drain the battery? How does one calculate and wire such a thing - in this particular case? I (...) (27 years ago, 17-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Power
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Perhaps your motors draw too much current. You can only draw 600mA from the L293D driver IC. In the HB manual, you can see you can draw 1A from a IC from TI. (I don't know the exact number right now). You could try to use a seperate IC for each (...) (27 years ago, 17-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Power
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Perhaps the problem is your motor-drivers IC's. If you use the L293D or something, which are standard on the HandyBoard, you can only draw abou 600 mA. I use the other ones mentioned in the HB manual (they're from Texas Intr., but I can't remember (...) (27 years ago, 17-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Power
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Perhaps the problem is your motor-drivers IC's. If you use the L293D or something, which are standard on the HandyBoard, you can only draw abou 600 mA. I use the other ones mentioned in the HB manual (they're from Texas Intr., but I can't remember (...) (27 years ago, 17-Mar-98, to lugnet.robotics.handyboard)
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| | Power
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Hello everyone. I finally got everything cool with the Handyboard I'm using in terms of the software and loading it and getting all connections right. The only problem now is that the motors on my little robot pretty much stop after maybe 45 seconds (...) (27 years ago, 17-Mar-98, to lugnet.robotics.handyboard)
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| | Disconnections etc.
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I have a few problems with the Handyboard I just put together: 1. I lose contact with the board from IC very often. Then, when I try to reset the board it will not always reboot. One of the following usually happens: a) I just get the single line of (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | An answer from Polaroid
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A while back I asked if anyone knew about a socket to accomodate the 9-pin plugs that come with the Polaroid sonar modules. I feel pretty dumb now, because I talked with the people at Polaroid, who tell me that it's not really a plug at all; it's (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | Re: How i can beep the handy in Imgecraft C....
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Hi German, I sent this to you before, but I guess you didn't keep it. This one is going to both the robot-board and handyboard lists you can always find it again later by searching the archives for these lists. To beep the beeper using ImageCraft C (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | Re: pneumatics
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(...) Small pneumatics are tough because commercial actuators are (A) expensive and (B)they assume a stationary machine tied to "shop air", i.e. miniature mobile compressors/regulato.../receivers are nonexistant. HOWEVER; you still have 3 good (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Gear Motors
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(...) Check out Herbach and Rademan at www.herbach.com for surplus DC gearhead motors. They often have 6-24 volt, optically encoded motors for $20-$25 each. J.V. -- ***...*** * John Vaughn Phone: 315-781-3906 * * Dept. of Math & Computer Science (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | Re: pneumatics
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(...) The components you're looking for sound exactly like ones that came with my Lego Technic kit. The actuator cylinders come in two sizes (the big one's about the size you're looking for), and there's a compressor cylinder and pressure reservoir (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | pneumatics
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does anyone know of a good sourec for pneumatics? Im especially interested in smaller pneumatics, like those about 1-2" long, with a stroke of 1-1.5" Thanks! phil (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | Nowbody can help me???
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I can't believe nowbody of the list users know how works the sound routines in the handyboard??? Please, if any have idea of how i can implement that on OTHER C COMPILER (don't interactive C), please anwser to my question. P.D,: Remember , the (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | robots rising program
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Hi Guys, Get off the computer and tune to the discovery channel to catch this program comming on at 8:00 cst. I believe it is going to last one hour. Bye Terry P Gathright (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | ? Mabuchi RS280 motor
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Hello all, I've connected a mabuchi rs280 motor to the handyboard. When activated with the following command, "motor(0,12);" the motor speeds up and then stops, and the board also beeps. the ratings for the motor are as follows voltage range 6-9 (...) (27 years ago, 16-Mar-98, to lugnet.robotics.handyboard)
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| | RE: IC Pointer Questions
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Hi, thanks for your reply ... Why don't I use the encoder0_counts variable ? I want to create a multi-tasked environment with seperate processes for each wheel to calculate wheel speeds. The same code will be used to calculate speed for 4 wheels. (...) (27 years ago, 15-Mar-98, to lugnet.robotics.handyboard)
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| | Re: IC Pointer Questions
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(...) If I am understanding you right... I haven't looked at the encoder routines yet, but I am assuming encoder0_counts is global. Why not, just omit the pointer count from the _encoder struct and just use the global, since you already have it? (...) (27 years ago, 15-Mar-98, to lugnet.robotics.handyboard)
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| | Gear Motors
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I was wondering if anyone has a good source for fairly high quality, low cost gear motors that inteface well with the handy board. Right now i am using a cheap little, current hungry 3v toy bulldozer as a platform. I would love to find some nice (...) (27 years ago, 15-Mar-98, to lugnet.robotics.handyboard)
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| | IC Pointer Questions
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Howdy all, I finally attached an infrared reflectance sensor to my handyboard and it works! With my non-existent electronic experiences I managed to solder a resistance (330 ohms) to a three-legged sensor similar to the four-legged variant mentioned (...) (27 years ago, 15-Mar-98, to lugnet.robotics.handyboard)
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| | (no subject)
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I recently got a handy board and I want to use the infrared signal to keep it from hitting a wall. How would I do this and how can I get a touch switch and get it to work. Chris Frost forgetful@lisco.net (27 years ago, 15-Mar-98, to lugnet.robotics.handyboard)
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| | (no subject)
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I recently got a handy board and I want to use the infrared signal to keep it from hitting a wall. How would I do this and how can I get a touch switch and get it to work. Chris Frost forgetful@lisco.net (27 years ago, 15-Mar-98, to lugnet.robotics.handyboard)
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| | Re: I can't beep my handy (again)
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German Gentile-- I know nothing about Imagecraft C, but here's how the beep function is defined in lib_hb.c (the Interactive C library of functions written for the Handy Board): void beep() { tone(500., .1); } /* 1/2 cycle delay in .5us goes in 0x26 (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | I can't beep my handy (again)
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Please anybody tell me how i can beep my handyboard with imagecraft C. Sorryfor send that again , but nobody send me a answer so , pls , give me a little explication on how i can do that. I only want to play a beep like i do with th IC. In (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | FAO MARIE CAHILL
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Hi everyone.. sorry to use the Handyboard mailing list for this, I'm trying to contact Marie Cahill who sent me some messages regarding robotics and stuff: Marie, I tried to send you a message from work to the address <mchu4mc1@fs2.ee.umist.ac.uk> (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Undefined
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(...) <snip> The code that defines these and other useful functions is called lib_hb.c, and versions of it can be found on the Handy Board web site (e.g., the most excellent version that includes smooth pulse-width modulation for the motors). --Will (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | multiplexing tomes on Handyboard?
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hello! Is there any way to write up a driver so that the soeaker can play 2 tones at once, like a telephone doeS? I triede creating 2 processes to play difrent tones, and then I attempted to run them simultaneously, but that resulted in a HB error. (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | Metal detectors
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Has anyone ever built a metal detecting device? I found some plans at (URL) but I don't know how sound it is, but I assume it works. I would like to interface the HB with a metal detector and have my robot search around for metal object. Any advice (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | Strange IC error (nevermind)
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Never mind... I discovered that IC didn't like me using a variable for the 8 bits to pass to bit_set and bit_clear (too bad it didn't just tell me that instead of throwing its arms up and quiting). I wanted to use the variable to save code space, (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | Undefined
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Hello everyone! I was wondering why my IC compiler ( IC-2.853Rev2 ) keeps giving me wacky and excessivly silly errors. Are there libraries that I was supposed to download to get rid of those pesky start_button and start_press undefined error (...) (27 years ago, 14-Mar-98, to lugnet.robotics.handyboard)
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| | Strange IC error
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I have attached the HB to a formerly radio controled car. I built an h brigde as described on wizard.org to control the motor. Anway.... all is going well, I have written routines to control the motor. Still sounds great... Until I get to uploading (...) (27 years ago, 13-Mar-98, to lugnet.robotics.handyboard)
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| | I can't beep my handy....
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I cant't make beep my handy, anyone can tell me how make it using Imagecraft C???? Thanks a lot (27 years ago, 13-Mar-98, to lugnet.robotics.handyboard)
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| | Camera on the Handyboard
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Hello! Does anybody have any experience in using cameras with the handyboard? Or is its CPU too slow? In that case: can you recommend a different board? Thanks, Jan ___...___ Jan Peters Student: Elektro- & Informationstechnik(TU Muenchen) (...) (27 years ago, 13-Mar-98, to lugnet.robotics.handyboard)
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| | 6.270 1998 videos available
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------- Forwarded Message Received: from MIT.EDU (SOUTH-STATION-ANNEX.MIT.EDU [18.72.1.2]) by aleve.media.mit.edu (8.8.7/ML970927) with SMTP id BAA04302; Fri, 13 Mar 1998 01:08:38 -0500 (EST) Received: from DEPARTMENT-OF-ALCHEMY.MIT.EDU by MIT.EDU (...) (27 years ago, 13-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Kent's sonar routines
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(...) The line "variable_sonar_time" indicates that the immediately following FDB will be available to IC as an integer variable named "sonar_time". The next line with the FDB is just a regular assembler definition statement to allocate storage for (...) (27 years ago, 13-Mar-98, to lugnet.robotics.handyboard)
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| | Kent's sonar routines
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Can anyone clarify something for me? A section of the code of sonar.asm goes as follows: variable_sonar_time sonar_time FDB 0 What does this mean? Why are there two variables before the FDB? Another section goes as follows: variable_sonar_enable FCB (...) (27 years ago, 13-Mar-98, to lugnet.robotics.handyboard)
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| | Writting plain Machine Code
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Hello All, I wish to program the Handy Board by plain machine code. Does anyone know how to download a plain binary S19 code, using a standard serial terminal, communicating to the given IC monitor. Also, how would I get the downloaded machine code (...) (27 years ago, 12-Mar-98, to lugnet.robotics.handyboard)
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| | Re: PC/Handyboard serial communication
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Hi all, I wrote in a previous message: (...) As many people has requested me to send the code, I have decided to put it on my microrobot projects page. Use it at your own risk! It is still in development, but it can serve to show how to make the (...) (27 years ago, 12-Mar-98, to lugnet.robotics.handyboard)
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| | robot with two handy boards
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Hello, We plan to design a robot which has to move very quicly and very accurately. For this matter we wonder if it is necessary to use one handy board or to link two handy boards to complete such a task. (If we use 2 HB, one (the slave) would be in (...) (27 years ago, 12-Mar-98, to lugnet.robotics.handyboard)
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| | Linking two handy-board
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Hi, everybody. A little question that upset us : We plan to use two handy-board : a master handy-board and a slave one. The slave handy-board would make some difficult calculations for the master one and would send the results to this last one. The (...) (27 years ago, 12-Mar-98, to lugnet.robotics.handyboard)
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| | Re: downloader for SGI
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Nari: I don't know of a precompiled SGI version. You can build one yourself from the sources listed in ftp://cher.media.mit.../projects/ interactive-c/source/. Also, please be aware that when you send mail to "handyboard@media.mit.edu" you are (...) (27 years ago, 12-Mar-98, to lugnet.robotics.handyboard)
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| | downloader for SGI
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Hi Fred, I like to connect my handy board to an O2 platform. Could you please tell me where I can find downloader for unix system? many thanks, nari (27 years ago, 12-Mar-98, to lugnet.robotics.handyboard)
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| | Re: beeping me handy...
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(...) Use the beep() routine, from the standard IC runtime library. -d The Fourth Law of Programming: Anything that CAN go wrong wi /kernel: pid 128 (sendmail), uid 0: exited on signal 11 (core dumped) (27 years ago, 11-Mar-98, to lugnet.robotics.handyboard)
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| | APC
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Does anyone know what the web site to APC is. I would like to order some pics such as Chuck McManis is using for motor controllers. If anyone has ordered them already please include information on how you ordered them. Thanks, Scott Sherman (...) (27 years ago, 11-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Assembler
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(...) No, however IC can access an integer value declared in assembler, which amounts to the same thing. Just precede the definitition with the line variable_C_name, where "C_name" is what you want the variable to be called in IC. I usually make the (...) (27 years ago, 11-Mar-98, to lugnet.robotics.handyboard)
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| | Defining Start Button
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Hey! Thanks Will for the groovy code! I debugged the bits the compiler didnt love and am left with one error beyond my limited comprehension. It doesnt like the bit with waiting for the start button that starts it. It says it is undefined. How do i (...) (27 years ago, 11-Mar-98, to lugnet.robotics.handyboard)
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| | Re: PC/Handyboard serial communication
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(...) I use Linux to talk to my HandyBoard. I have written a couple of functions (in plain C) to do so, and implemented a software handshake (even with low speed PCs you have to do some sort of handshake). Of course, the merit is not mine, I have (...) (27 years ago, 11-Mar-98, to lugnet.robotics.handyboard)
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| | Assembler
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Can assembler access an integer variable declared in IC? ---...--- 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 (...) (27 years ago, 10-Mar-98, to lugnet.robotics.handyboard)
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| | PC/Handyboard serial communication
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I am writing a PC program to communicate with the Handyboard via its RJ11 jack using the serialio routines. On the Handyboard side, all we can do is poll the port, but what have people done on the PC side? It should be easy to just poll the port (...) (27 years ago, 10-Mar-98, to lugnet.robotics.handyboard)
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| | IR receiver
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I´m trying to use the ir output & ir receiver in my HB to control proximity objects. Where can I find information this? How works r22_ir.c? (27 years ago, 10-Mar-98, to lugnet.robotics.handyboard)
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| | beeping me handy...
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I'm using a handyboard with imagecraft C. how i can make beep my handy???? (27 years ago, 10-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Help from UK HB builders
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(...) Duncan, There is a problem with your e-mail return address. (When reading your own message, just click on "reply" and you will see where the problem is) Would you please fix it so that we will be able to send you replies. Silvain F.S.F.C.M. (...) (27 years ago, 10-Mar-98, to lugnet.robotics.handyboard)
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| | Help from UK HB builders
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To all UK Handyboard Builders As my skill at PCB manufacturing is strictly limited to very simple single sided boards, is there anyone who could help out. Either the name of a person/company who has produced a PCB for you Or A very nice Handyboard (...) (27 years ago, 9-Mar-98, to lugnet.robotics.handyboard)
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| | Various other questions
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Since I only have like a month and a half to get my little robot running and Im kind of on shakey ground with the IR sensors, I wrote this failsafe program. Like ive said before, Im not too familiar with Interactive C and was wondering if you could (...) (27 years ago, 9-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Analog expansion header
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this will be used by any expansion board to multiplex multiple new analog inputs into a single hc11 analog line. fred In your message you said: (...) (27 years ago, 9-Mar-98, to lugnet.robotics.handyboard)
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| | Analog expansion header
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Does anyone know what the analog expansion header is used for? It's a 4-pin female header above the analog inputs. Has anyone used this header? ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (...) (27 years ago, 9-Mar-98, to lugnet.robotics.handyboard)
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| | Ack.
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Thanks everyone for your help with the pcode_hb.s19 file. You guys rule! I asked if the seeminly abundant analog sensors are any use at all with object detection and i got a pretty much split vote. Ive been told these are the wrong kinds and that (...) (27 years ago, 8-Mar-98, to lugnet.robotics.handyboard)
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| | runtime error #4 + serial io
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Hello: I wrote a program to collect data off an analog port. I set up an int array. I find that the array could be no more that 70 or so before I get a stack overflow. Sometimes the program loads and I get a runtime error #4. I tried getting rid of (...) (27 years ago, 8-Mar-98, to lugnet.robotics.handyboard)
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| | Miniboard Price list please inquiries
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Hi there, I am profoundly deaf student. I need to know to find how much cost for check up. Miniboard 2.1 Extended kit $84US. (this spare part is fully yes or no) Miniboard 2.1 Extended Assembled/tested $109US Plus handle post in ship freight send to (...) (27 years ago, 8-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Polaroid sonar connector
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|
In the Polaroid manual, the connector is referred to as a "Burndy 9 pin connector SLP9S-2". I once spoke to someone at Polaroid who gave me the cross reference "JST 1B0579A" (don't know if it's Burndy or not). I am pretty sure the cable is standard (...) (27 years ago, 8-Mar-98, to lugnet.robotics.handyboard)
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| | Analog Expansion Header
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What's the analog expansion header for? ---...--- 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, 8-Mar-98, to lugnet.robotics.handyboard)
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| | Polaroid sonar connector
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Does ANYONE out there know how I can get my hands on a couple of the sockets that will accomodate the 9-pin Burndy connector plugs that come with the Polaroid sonar modules? I've searched the web, but haven't been able to find what I'm looking for. (...) (27 years ago, 7-Mar-98, to lugnet.robotics.handyboard)
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| | Re: how to use IR recievers?
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At 11:12 PM 3/6/98 -0800, patrick wrote: (snip) (...) If the VCR isn't totally dead, maybe you could plug in what's left of it and probe the leads that used to go to the IR module for a live one? (snip) (...) The HB comes with a modulated IR beacon (...) (27 years ago, 7-Mar-98, to lugnet.robotics.handyboard)
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| | Re: pcode_hb_.s19
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I am not sure what do you mean from the mail. Could you try to download with an option to save the file to a disk ? -Pdp. ---...--- (...) space (...) (27 years ago, 7-Mar-98, to lugnet.robotics.handyboard)
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| | IR transmitter
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Hi all, Can someone tell me how to enable the onboard IR transmitter, when i enter ir_xmit_on(); i get a message that says function undifined. Thanks, Clancy. (27 years ago, 7-Mar-98, to lugnet.robotics.handyboard)
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| | how to use IR recievers?
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I remember some lively discussions concerning the use of an ir sensor (like from an ex-vcr) to locate objects, walls, etc. I didn't have a handy board at the time, but saved the messages for the time that I got one. Well that time is now, but I have (...) (27 years ago, 7-Mar-98, to lugnet.robotics.handyboard)
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| | pcode_hb_.s19
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Hey! I ResEditted my pcode_hb.s19 file that i got from netscape into the Init application. It then started up and said Fatal Error <> undefined hex character. Could somebody, if they have the time, send me copy of this? Im stuck here on an aging (...) (27 years ago, 7-Mar-98, to lugnet.robotics.handyboard)
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| | Re: 3v Motors
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(...) There are instructions on the Handy Board web site for how to sever the motor power trace on the HB and plug in a separate battery pack for the motors. This allows you to use a motor battery of any voltage you like up to about 36 V. If you (...) (27 years ago, 6-Mar-98, to lugnet.robotics.handyboard)
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| | RE: 68HC11S IN THE UK
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Hi Dave, You can get them from RS, they deal with the general public via a company called Electromail (tel 01536 204555). The price for the HC11A1 was 7.5 GBP plus VAT and delivery, this was in the October 97 catalogue so they may have increased the (...) (27 years ago, 6-Mar-98, to lugnet.robotics.handyboard)
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| | 3v Motors
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Hello all, I have been having problems finding motors suitable to use with my Handy Board(5-12v 600mA) but I do have two 3v motors with quite good gear boxes and i was wandering what the best way was to use them? Thanks, Brennan Mair gysmo@es.co.nz (27 years ago, 6-Mar-98, to lugnet.robotics.handyboard)
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| | Re: V2X Compass
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(...) We used the V2X and, due to space considerations on our test platform, placed the compass within 4 inches of the DC motors driving the vehicle. We had no noteworthy error that we could attribute to magnetic coupling. -d The Fourth Law of (...) (27 years ago, 6-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Several different questions
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(...) Which serial port are you referring too? I know that this is entirely feasable with the SPI synchronous serial port, which is brought out on the HB. If you can afford 5 wires, I would recommend this port as it is a bit easier to debug. -d The (...) (27 years ago, 6-Mar-98, to lugnet.robotics.handyboard)
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| | Re: 68HC11S IN THE UK
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(...) You can try Farnell Electronics. Have a look at the on-line catalogue at (URL) had mine from there. They are quite happy to process private, credit card orders and are pretty quick. Actually most of the tricky bits my HandyBoard came from (...) (27 years ago, 5-Mar-98, to lugnet.robotics.handyboard)
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| | POWER GLITCH
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Hi. I keep trying to download programs into my handyboard and from the console it seems to work, but often it wont even download the code due to "Power Glitch" error messages. I think the Handyboard homepage had something about that being the wrong (...) (27 years ago, 5-Mar-98, to lugnet.robotics.handyboard)
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| | GETCHAR
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Hello, I am having trouble with the serial_getchar function in serialio. I would like to put a character into the received memory location directly without hanging the program. From what I understand (0x102f) is the location, however I don't know (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | RE: LCD
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Digi-Key # 73-1037-ND (Optrex # DMC-16249B) works; also Mouser # 592-RCM2065R (Rohm # ?????) should work. Mind you, none of these bolt on unless you want to fab a couple of custom standoffs, but they will connect neatly and not flop around too (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | Re: LCD
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We ordered a lot of our stuff from the states, delivery time wasnt bad as long as they had it in stock... you might try Electrosonic in vancouver (www.e-sonic.com), but digikey and the like down in the States are pretty good too. also, if you can (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Optical Sensors
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With sumo wrestling robots, I find that the high freqency noise from the robots and motors tends to confuse the recievers, expecially the metallic impact and collateral damage :) The ring is small enough that, though sonar is useful, greater success (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | Optical Sensors
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Hi All, I am making a Sumo Wrestling Robot at university. the robot is totally autonomous, and I was wondering if sonic transducers were the best for "seeing" another moving robot. Range is not necessary but desireable in the sensor. Previous robots (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | IR sensors
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Hey! Im a high school kid playing around with a handyboard i got maybe a week ago. Do you guys know any reason why my IR sensors keep returning 255? I havent made the trip to Radio Shack to pick up an IR detector card yet, but Ive tried a couple (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | confirmation of Cheap Lego gear motors
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Hey, you're right! I just ordered a couple and they said they were in stock I'd get them in 3 or 4 working days. ---...--- (...) item (...) only (...) that (...) know. (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | Cheap Lego gear motors
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NEWS FLASH! Any of you who, like myself, have been waiting for Dacta to deliver (some time later this month) the Lego Technic 9V motor with gear reduction at $24.50 each might want to consider cancelling your order, because Lego Shop-At-Home (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | IR Sensors
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Hey! Im a high school kid playing around with a handyboard i got maybe a week ago. Do you guys know any reason why my IR sensors keep returning 255? I havent made the trip to Radio Shack to pick up an IR detector card yet, but Ive tried a couple (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | (no subject)
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I am sorry, but I want my address to take off from the list because I got almost about everybody's mail. thanx, latu fifita (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | Re: V2X Compass
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Hello all: I played with the V2X a year or so ago, and found that virtually anything magnetic interferes with readings. I found that the wiring in my office created false readings when the compass was moved around, especially if close to the walls. (...) (27 years ago, 4-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Servo Question
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(...) I have a sonar mounted on a panning servo, and I just bought an el-cheapo Cirrus CS-50. (It is functionally equivalent to a JR/Hitec JR-507 or HS-300). It works fine, although it is a noisy little bugger (but other servos don't seem much (...) (27 years ago, 3-Mar-98, to lugnet.robotics.handyboard)
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| | robot contest at Penn State
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Hi All, The Penn State Abington College (Abington, Pa -- Phila., PA suburb) will host a preliminary fire-fighting robot contest on Sat, April 4, 1998 at 3pm. The fire-fighting contest is based on rules developed by Trinity College Fire-fighting (...) (27 years ago, 3-Mar-98, to lugnet.robotics.handyboard)
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| | Re: Servo Question
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I've had very good luck with the Cirrus CS-70 which is basically a Futaba S148 replacement. It costs less than $10 and is available mailorder from Hobby Shack (800) 854-8471. I've modified a bunch of these to act as wheel drive motors for small (...) (27 years ago, 3-Mar-98, to lugnet.robotics.handyboard)
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| | Servo Question
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To anyone who can help: I wish to setup a panning sensor array for my platform using an RC servo, and I have some questions on experiences with servo brands. I know that Futaba servos are well respected, but they are also expensive. Has anyone had (...) (27 years ago, 3-Mar-98, to lugnet.robotics.handyboard)
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| | LCD
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Can anyone suggest a good place to get a "bolt in" (I'm a car guy!)LCD that fits the handyboard nicely?? Also , does anyone know of a good parts supplier in Canada??? my local supplier can't supply me with some of the stuff... thanks Owen (...) (27 years ago, 3-Mar-98, to lugnet.robotics.handyboard)
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