 | | HB and the Bloomington HS Solar Bike Team
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Hello All, I posted a little note a while back about our use of the HB on the two bikes that our local high school is using in solar bike races in Topeka and Akita, Japan. Well the races are over and I thought that some of you may be interested in (...) (26 years ago, 31-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Need PWM generator chip
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(...) look for the LM629 on the national semiconductors (URL) offer free samples. However, the one i'm talking about is surface mount. .---...--- . . . | Remi Desrosiers | "My Youth in Arcadia" ICQ# 7228856 | harlock@videotron.ca . (...) (26 years ago, 31-Jul-98, to lugnet.robotics.handyboard)
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| | beginner
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Hi every body... I need help guys! So far in my life I haven't done any thing like this, but I like to learn. Is there an idiot's guide for a beginner to start programming a handy board? Can some body tell me where to buy a handy board and which (...) (26 years ago, 30-Jul-98, to lugnet.robotics.handyboard)
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| | Need PWM generator chip
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I'm looking for a chip that will generate PWM waveforms. I know they exist, but I don't have information at my fingertips. Thanks for any tips! --greg ***...*** * Greg Starr, Professor * * Department of Mechanical Engineering ph (505) 277-6298 * * (...) (26 years ago, 30-Jul-98, to lugnet.robotics.handyboard)
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| | IC floating point bug
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Has any new information on the IC floating point bug come up? I have been coding neural networks into my robot and was having problems. A simple 'test' network of simple values ran fine, but when I manually entered a real evolved network with many (...) (26 years ago, 29-Jul-98, to lugnet.robotics.handyboard)
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| | Re: recherche de logiciel C Interactif comme prisenti dans le livre
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please see (URL) your message you said: (...) (26 years ago, 29-Jul-98, to lugnet.robotics.handyboard)
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| | recherche de logiciel C Interactif comme prisenti dans le livre
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N'ayant pas accés à un micro équipé d'un lecteur de disquette et ne connaissant rien du protocole FTP, je souhaiterais obtenir de votre part la version Gratuite du C Interactif Mes coordonnées : Claise Jerome 23 avenue marcel pagnol 60870 villers st (...) (26 years ago, 29-Jul-98, to lugnet.robotics.handyboard)
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| | Re: 68hc11F1
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Hello mike, (...) I also wanted a small board with MCU, memory, serial and a bus to the outside world. This way i made a general io board and could connect anything to it. (...) You can buy the hc11F1 in 4 speeds, with a freq up to 16 Mhz, setting (...) (26 years ago, 29-Jul-98, to lugnet.robotics.handyboard)
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| | Re: What types of IBMs does IC Run on?
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i'm pretty sure the DOS version of IC runs on 286's -- it may even run on 8086's that have the 8087 math co-processor. fred In your message you said: (...) (26 years ago, 29-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Digital In and Analog Out Header
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It should read: ooo...ooo Signal ---...--- ___...___ 47K RESISTOR NETWORK ___...___ ooo...ooo +5V ---...--- ___...___ ooo...ooo Ground ---...--- Regards, Patrick --00---...--- Low cost MIT Handyboard supplie (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: AC adaptor
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Hi All, That color code on inductor should read: BROWN(1), BLACK(0), GOLD, SILVER which is (1x10^0)uF => 1uF. Sorry for the confusing and we will mark that in the future. Thanks. Patrick --00---...--- Low cost MIT Handyboard supplier and Official (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: What types of IBMs does IC Run on?
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I would guess this means that IC needs a math co-processor, in other words, a 486 DX or higher. -- Justin Kao <jkao@bigfoot.com> <jkao@flash.net> <ICQ 5903051> (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | interfacing V2X compass
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HB Folks, I'm currently using the HB to interface to a Vector 2X compass. I'm using the compass in RAW slave mode, so it's different than the hardware interface that's documented on the HB web site. But I did notice that the documented interface (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | polaroid ultrasonic detector
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I'm trying to make the polaroid ultrasonic motion detector compatible with the crickets. Does anyone know where I can find a data sheet for these detectors? I unfortunately broke the last one I was using. I think I must have exceeded either the (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: IC Floating Point Bug
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(...) If you notice, the constant is PI/2. If you add more significant digits you can even get "a/b" to become 0.5, that is twice the correct answer rather than half of it!!! The reason the bug concerns me so much is that since "a" and "b" print out (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: AC adaptor
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Please see the FAQ for the answer to the adapter question: (URL) the L1, that substitution may or may not work. try it; if your motors don't work right, it could be that. Fred In your message you said: (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | What types of IBMs does IC Run on?
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Greetings, I have recently gotten the free version of IC working. It was a battle and it seems that the type of host processor makes a difference. Running IC on an old IBM XT (8088) CPU produces the following error whenever a routine using floating (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: IC Floating Point Bug
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(...) <snip> I get the same results with version 3.2. Curiously, if I remove the last digit in the a = 1.570796 statement (or replace it with a zero), then I get the correct answer. I guess it has something to do with specifying too many significant (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | AC adaptor
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I figured out all of my problems were caused by using an ac-dc adaptor with the wrong voltage. What is the correct output voltage for the adaptor that should be used with the handyboard? Also, I cannot find L1, the iron core inductor. I ordered my (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Update
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Sorry, not the handyboard but the expansion board Bill James | work: 972.480.2306 Product Test Specialist | Pager: 972.598.6201 w-james2@ti.com Precision Analog & Interface Department Polymath in Training | Have Spacesuit will Travel (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Update on the expansion board.
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Fred, I was wondering how the beta test of the handy board is going. Is the board a double sided board or a multilayered board? When will you be posting the artwork, I am interested in trying to make one? Thanks and keep up the good work. Bill James (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Various Basic Issues
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(...) Joseph, I am new to the handyboard myself but as a professional software engineer, I can give you some pointers on the software issues. When they say that IC is a subset of C they mean that there are certain ANSI C features that will not be (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: 68hc11F1
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(...) For the H-bridges look for the LMD18200T at (URL) also the LM689 for motion control, using PWM as output and quadrature encoder (4bits?) as input. However I think the command that must be sent are 8 parallel bits :( (...) | Remi Desrosiers | (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: 68hc11F1
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Hello Mike, Sorry for the cryptical message, I don't have a handyboard running at 16 Mhz, i made my own board, currently with a 68hc11F1(@16Mhz), 32 K external RAM, 32k External flash. My programs are run from the flash, leaving aprox 32 k of stack (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Digital In and Analog Out Header
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Hello All, Just a quick question, On the handyboard there is a socket header for the 7 analog inputs, and 9 digital outputs. There is actually three rows of headers for these inputs. I am enquiring as to what are the three headers for? I am (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Various Basic Issues
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<snip!> (...) I believe it is a subset of striaght C. However, I never learned C: I junped straight into C++ before even getting my HB. However, programming was of no dificulty to me, even thought I only knew C++ (...) IC will work on a computer. I (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | FS: Extra HandyBoard for sale
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I have one extra HandyBoard that I will sell if anyone needs one. It is a fully assembled and tested board with Serial Interface/Charger Board and cases. It has never been used in a project (about 2 months old). I built two of these and find that I (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | [Fwd: Various Basic Issues]
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Content-Length: 1148 (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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| | IC Floating Point Bug
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I've been making use of floating point for the first time on the HB and am having problems. The following program demonstrates the kinds of bugs I've been encountering: ----(cut here)---...--- int main() { float a; float b; float c; /* This program (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | sonar.c for the handyboard
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Hello, I have a handyboard and 6500 series poloroid ultrasonic ranging system. I have downloaded the sonar.c programs used to drive the transducer for distance measurements. There appears to be a problem, or atleast I think there is, with it. The (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: Sumo-Robots
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look at (URL) for th Dutch sumo-robotics Greetz Emiel ---...--- (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: motor power problems
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In a message dated 98-07-24 20:49:35 EDT, you write: << Has anyone had similar problems, and if so how did you solve them? I know there's a way to provide a separate power supply for the motors, but I'd rather not cut traces on the board except as a (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Various Basic Issues
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Howdy from Texas. I have set myself the goal of making a robot with the handyboard -- just for the learning of it. Until 2 days ago I had zero knowledge of electronics, although I am teaching myself using some kits and books. I also do not know C (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: troubleshooting
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ok, i finished the digital input circuit and the first time i turned it on both green and red lights stayed illuminated so i checked the orientation of all the chips and they were correct so i removed and reinserted them for good measure. This (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: IR Emmiter and Detector for RW Pro
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Hi ! You get a fantastic collection of datasheets and component specs at www.questlink.com regards..... Rajaraman. -----Original Message----- From: Javaid Iqbal <javaid@student.unsw.edu.au> To: Handy Board <handyboard@media.mit.edu> Date: Sunday, (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | ELMO
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Hello all, From December 1997 until now I've been working on my Master's project. It consisted of a theoretical part and a practical part. In the practical part I made a little mobile robot using a Handy Board. In the next couple of weeks I will be (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | 68hc11F1
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Hello all, Thanks for all the replies that you have send. My board is now working, at 16 mhz with flash and ram. Richard (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | RE: fischertechnik
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First of all, the HandyBoard works fine with fischertechnik. I've been using fischertechnik for a variety of purposes since about 1980. I've also used Lego Technic, although less extensively, for ten years or so. Size/Scale: If you build identically (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | Re: troubleshooting
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In your message you said: (...) good.... (...) yes, this is normal -- before you load pcode_hb.s19, the LCD is just as you describe. (...) d (...) I'm not clear the problem. if you enable "ignore feedback", does it then download properly? if so, (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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| | troubleshooting
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I have a problem assembleing my hanyboard. I am at the stage where i am doing the digital input circuit. Before this I successfully loaded pcode_hb.s19 into the handyboard and the interactive C message appeared. However, before i loaded pcode_hb.s19 (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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