 | | Re: PURCHASE IN MIAMI OR BOSTON
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Mabey Hui has become better then when I bought mine. But when I bought mine it took forever to get here, when I eventually got it the box was it extremely poor shape. I sorted all of the parts for assembling the HB and I found some of the parts (...) (27 years ago, 7-May-99, to lugnet.robotics.handyboard)
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| | Re: Interative C on 8086
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I unearthed a post by Randy Sargent from 1996 -- (...) Sorry to trouble everyone! (27 years ago, 6-May-99, to lugnet.robotics.handyboard)
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| | Interactive C on old 8086 machine
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I'm having trouble getting Interactive C to run on an old 8086 machine. No messages of any kind, the program just quietly exits back to DOS without doing anything visible. (The same binary normally on a 486). Does the DOS version of Interactive C (...) (27 years ago, 6-May-99, to lugnet.robotics.handyboard)
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| | RE:PURCHASE IN MIAMI OR BOSTON
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I too have purchased a Handy board from Patrick Hui and was more than happy with the quality of the product. I experienced no difficulties getting it set up and the accessories included in the package were helpful. The only difference I am aware of (...) (27 years ago, 6-May-99, to lugnet.robotics.handyboard)
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| | Re: Purchase in Miami or Boston
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(...) Yeah, the HB and sensors that Patrick Hui sent to me worked great, too. Not only that, but he promptly answered my questions via e-mail. I haven't dealt with Gleason yet, but I wouldn't hesitate to recommend Mr. Hui. -- Will , , __@_/ \_@__ |/ (...) (27 years ago, 6-May-99, to lugnet.robotics.handyboard)
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| | Re: GP2d02 Problems
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as was mentioned, problems loading ICB files are usually due to bad linefeeds. there is a FAQ entry on this, which explains how to solve it: (URL)Greetings all! (...) (27 years ago, 6-May-99, to lugnet.robotics.handyboard)
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| | RE: GP2d02 Problems
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Ryan, Well, it worked for me... Which version of IC are you using? I'm using the Newton Labs IC version 3.1 but as far as I know the program should work with all of the versions. If you tell me what you're using I'll fire that version up and try it (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: GP2d02 Problems
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Have you openned the files in a simple editor (I use BBEdit)? If not, try openning them and check what is at the end of the program lines. Sometimes, pending on how it downloaded, it will have "squares" at the end of the lines representing (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Purchase in Miami or Boston
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Peter, I've recently bought a Handy Board kit from Patrick Hui in Hong Kong. Contrary to your experience, I was very pleased about the quality of the parts Patrick sent me! Also, his price was very competitive to Gleason's (which was the reason why (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | GP2d02 Problems
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Greetings all! I just got the Sharp GP2D02 ir distance sensor and I got it all hooked up the way that Barry Brouillette's tutorial explained, and I downloaded the new expansion board drivers, but when I went to load the Barry's IR drivers, it gave (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Dumb math question related to Navigation and encoders
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(...) This is actually a very good question. Generally, math function libraries use what is called a Taylor series expansion of a trigonometric function to return an approximation to the function with arbitrary precision. The more terms from the (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | HC11 Math Libraries?
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Anyone know which of the following are the most bug-free? All were found at the Motorola ftp site: float11.arc fp11.asm 01/22/1986, R. Soja gmath.asm/gmath.lst 12/30/1988, James Shultz hc11fp.asm/hc11fp.doc 12/04/1995, Gordon Doughman HC11FP11.asm (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Purchase in Miami or Boston
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Gleason Research is a very good distributor of HBs. I have bought stuff from them before and I was very pleased. I wouldn't buy it from Patrick Hui, I was very displeased with the quality of the parts he sent me. -Peter (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Navigation & Encoders
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(...) Dear Andrew, You want the angle that line joining G and P make with X axis. That is arctan of the slope of the line from P to G. slope =(yP-yG)/(xP-xG) hence, theta = arctan ((yP-yG)/(xP-xG)) where P=(xP,yP) and G=(xG,yG) Note that this angle (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Purchase in Miami or Boston
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Hi, can anyone suggest me where to by a Handy Board and the Expansion Board in Miami or Boston, or maybe its better to by it by mail from somewhere else? Fred, just in case, Im using Outlook Express and Im sending this mail with "TEXT without (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Dumb math question related to Navigation and encoders
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How do you compute, using Handyboard Interactive C, the Sin, Cos, Tan, Arctan, etc. ? Is there some sort of built in math library file that I can use or is it some sort of formula? I want to implement some rough dead reckoning ability and this stuff (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board manual
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all info about the exp board is on the web page, at (URL) there some specific info that you are missing? fred (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | connecting an IR sensor to the board
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Hi! We've been trying to connect an ARTEK "photo-electric" sensor. It is the kind that can be used as a switch : it can only "see" a piece of reflective plastic (like the ones found on a bike, or cat's eyes). However, its supposed to work on 12V. It (...) (27 years ago, 5-May-99, to lugnet.robotics.handyboard)
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| | Re: expansion board
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shsc9801@condor.stcl...dstate.edu wrote: <snip> (...) Scott: Do you mean from exp bd J19 to digital 7? - - - Nick - - - (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Re: Expansion board manual
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Is there an expansion board manual like the handyboard manual? if so, where can i find it? =) thanx in advance chen (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | RE: Battery Status
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Sort of, I've had a FET driving a solid state relay that allowed me to connect the motor batteries to the system to preserve the system in the case of system battery failure. However the robot wouldn't move under that situation since the reason the (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | expansion board
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How does the jumper from the expansion board J19 to digital 7 come into play? Scott Sherman IT Spec. II St. Cloud State University 720 4th Avenue South Academic Computer Services ECC Building, Room 101 (320) 255-4888 (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Re: Navigation & Encoders
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(...) The angle relative to the x axis is given by: theta = arctan((y2 - y1)/(x2 - x1)) Remember, the tangent of an angle is the length of the opposite side divided by the length of the adjacent side of the corresponding unit right triangle (i.e., (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Navigation & Encoders
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I know this is not really handyboard specific but hey... Does anybody know the equation for finding a heading (theta) from a current position P(x,y) to a goal position G(x,y). I sure there's a tangent in there somewhere but I've already dredged up (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | RE: Battery Status
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I have quite a few battery discharge curves lying around, and one thing I can tell you is that they are all different. Generally they start at a high voltage, quickly discharge to a normal operating voltage, hold that voltage for a majority of (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | RE: Battery Status
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Has anyone ever tried having a small offline battery that can be kicked in via sofware? When the main power source is nearly exhausted it can be put online and you know approximately how long that emergency supply will last. Mike (...) at (...) (I (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Re: Battery Status
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(...) battery (...) drop. (...) Umm, yes. But only if the battery is 5volts. Presumably, the voltage regulator on the HB is being supplied with well over ~6.5 volts (usually a 9.6v battery). Thus the output of your divider could be read via an (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Re: Battery Status
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(...) However, I'd be concerned about this method in the long run. I'm thinking that the discharge rates of some batteries change over time (talking rechargables here), and that may screw you eventually. Of course, I haven't the faintest idea for a (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | RE: Download of PCode and registers
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Eric, You shouldn't need to use the 0d block for normal programs. In fact, 0c is what you are supposed to use. The only time when you need to use the 0d value is when you are burning the board with the "config0c.s19"(I believe that is the file (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | RE: Download of PCode and registers
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Eric, You shouldn't need to use the 0d block for normal programs. In fact, 0c is what you are supposed to use. The only time when you need to use the 0d value is when you are burning the board with the "config0c.s19"(I believe that is the file (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Re: Battery Status
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[Duncan Orthner] spake unto the ether: (...) But isn't the supply voltage also the reference for the D/A converter? If the reference drifts, the signal through the divider leg will also drift? I remember trying something like this with a variety of (...) (27 years ago, 4-May-99, to lugnet.robotics.handyboard)
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| | Re: Battery Status
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(...) This is usually how it's done. The voltage will drop predictably as the battery discharges. (...) Yes. You could use a voltage divider. You may have to play with the cutoff point a bit, and be aware that nicads experience a rather sharp (...) (27 years ago, 3-May-99, to lugnet.robotics.handyboard)
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| | Dowload of PCode and registers
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I am building a new handyboard and when I attempt to send the PCode to the board using HBDL for Windows I get an error if 0c is put in the register window. However, if I put 0d it works fine, the files load and the handyboard functions properly. Why (...) (27 years ago, 3-May-99, to lugnet.robotics.handyboard)
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| | Battery Status
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Hi, I would like to measure the battery capacity (how much longer can I keep the operating robot, running under the present battery), but I very newbie in regards to electonics... so here are my newbie questions... :) 1) Is voltage; information (...) (27 years ago, 3-May-99, to lugnet.robotics.handyboard)
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| | 6500 returning dd values
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Hello, I connected a Polaroid 6500 to my expansion board on my handy board and tried to test it but it returnes a different value every time, some of them being odd values (eg -24567). Heres how it lies - on the 6500 per. bd. E1 is connected to the (...) (27 years ago, 3-May-99, to lugnet.robotics.handyboard)
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| | Re: charging circuit
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Hello again, Sorry for the posting, seems as the problem fixed itself, anyhow it's working like it always did now. Thanks anyhow, Terry Gathright ---...--- (...) with (...) (27 years ago, 3-May-99, to lugnet.robotics.handyboard)
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| | charging circuit
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Hi All, I turned on my handyboard yesterday and found that the battery had died, zero,no voltage. I then plugged the wall transformer wire into the jack on the handyboard as I had been doing all along. The charge yellow led on the handyboard blinked (...) (27 years ago, 3-May-99, to lugnet.robotics.handyboard)
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| | UV sensors?
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I am doing a project that involves detecting UV light. Has anyone ever uses UV sensors. And where would I be able to get these sensors? -Peter (27 years ago, 2-May-99, to lugnet.robotics.handyboard)
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| | Re: string functions and Interactive-C
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(...) Dear Matt, Serial i/o routines available in the FAQ at the MIT site for the handy board send characters. Write a function which using % and / operators to convert a number into digits. The function should send each digit as a character along (...) (27 years ago, 2-May-99, to lugnet.robotics.handyboard)
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| | string functions and Interactive-C
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I would like to be able to construct various useful strings and send them out the serial port (not just to the display). For example, I would like to be able to do something like: sprintf(buffer,"Motor Temperature is %d",mot_temp); (...) (27 years ago, 2-May-99, to lugnet.robotics.handyboard)
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| | Re: HC11 E 'series'
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(...) Yes. I'm using a couple of E9's. Setting the config register to the normal Handyboard value disables the internal ROM, so you end up with an A-series with the exception that you have twice the RAM (512 bytes). Curt Mills, WE7U (...) (27 years ago, 29-Apr-99, to lugnet.robotics.handyboard)
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| | HC11 E 'series'
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I was wondering if i can use the HC11E9 series microcontroller instead of the A1 (that is suggested on the data sheets for the handy board). I have the Reference Manual for the HC11, looked at the data sheets and they say the E9 is an upgrade from (...) (27 years ago, 29-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Smooth PWM with IC 3.2
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Dear Bill, Mostly you have got wrong versions of your library files mixed up. Multiple definition of functions is occuring. It is best that you download all files from the same site on the internet and use them. As per the new version, raw_analog (...) (27 years ago, 29-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Video transmitter and receiver
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Hi! can anyone recommend any good video transmitter and receivers? my team has the monitor but no transmission equipment. =) chen (27 years ago, 27-Apr-99, to lugnet.robotics.handyboard)
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| | Please help me.
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Hello all. I have just begun 68HC11 study. So, everyone has a question. 1. I want to know how to change hex file to motorola s19 file. 2. I want to know where it is free disassembler for 6811. Please help me!! Yoshi astronauts@mail.goo.ne.jp (27 years ago, 27-Apr-99, to lugnet.robotics.handyboard)
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| | GCC/HC11
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Just to let everyone know: I think I may have found a new compiler bug with the GCC/HC11 C-compiler. When I did this: c = d = serial_getchar(); My program didn't work correctly. If I did this instead: c = serial_getchar(); d = c; It worked fine. (...) (27 years ago, 26-Apr-99, to lugnet.robotics.handyboard)
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| | doc info
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I am buliding my own handy board and I having difficulty downloading the "Assembling The Handy Board" file off the web site. Does anybody know any other way to obtain this document? Fred (27 years ago, 26-Apr-99, to lugnet.robotics.handyboard)
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| | CMOS CAMERA
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Anynoe did connect a CMOS camera to Handy Board ? Is possible ? (27 years ago, 26-Apr-99, to lugnet.robotics.handyboard)
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| | Re: IR test reports "Rubbish" when I run test.c
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|
Test.c expects to see both short and long pulses of IR, and it tries to accept timings from any remote. It times the signals it receives and records the lengths of the shortest and longest pulse. It then uses the midpoint of these values as a (...) (27 years ago, 24-Apr-99, to lugnet.robotics.handyboard)
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| | Re: handyboard clock speed
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|
(...) Not going to mention the free Otto/Steven/Keith/Curt GCC-2.8.1 HC11 port? I'm hurt. ;-) Maybe you need to add my web & ftp pages to your free software page, now that I have a GCC Handyboard library available? GCC/HC11 patches are available (...) (27 years ago, 23-Apr-99, to lugnet.robotics.handyboard)
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| | Re: handyboard clock speed
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|
(...) yes, this is right. the fastest you can go with the 52-pin 6811s is 12 MHz crystal --> 3 MHz system clock (i'm pretty sure). so this is only 1.5x over the stock HB. so you've got the issue Curt pointed out with not only the downloader, but (...) (27 years ago, 23-Apr-99, to lugnet.robotics.handyboard)
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| | Re: handyboard clock speed
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|
(...) From the data books for the 68HC11, if you have any version of the E-series (except for perhaps one, a low-power version?), you can run them at up to a 3MHz E-clock (12MHz crystal). I haven't looked at the rest of the handyboard schematic with (...) (27 years ago, 23-Apr-99, to lugnet.robotics.handyboard)
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| | IR test reports "Rubbish" when I run test.c
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When I try to get the values for my IR transmitter the test.c reports that it is a bad. It calls it 'rubbish' why would that be? -Peter (27 years ago, 23-Apr-99, to lugnet.robotics.handyboard)
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| | RE: Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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Sorry, no. The breakdown occurs purely from the dielectric material. Remember lightning? You don't all of a sudden see the clouds come crashing down to the ground and then have a discharge. (...) (27 years ago, 23-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Faulty Digitals
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|
it might be the processor, but more likely there is a board short connecting the dig ins to ground (input 7) and pwr (input 8). measure resistance between the inputs and the gnd and pwr rails to check. fred (...) (27 years ago, 23-Apr-99, to lugnet.robotics.handyboard)
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| | Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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Date: Thu, 22 Apr 1999 13:21:14 -0700 From: Chuck McManis <cmcmanis@mcmanis.com> Kind of. Electrolytics are indeed made by plates in a conductive solution, however when the voltage increases, it pulls the plates together (standard columbs law (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Faulty Digitals
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Greetings all! I've got a Handy Board with the expansion board, and the first and second digital ins (digitals 7 and 8) aren't working. 7 is stuck in 0, and 8 is stuck in 1. I replaced everything on the board but the processor itself, and I'm not (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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|
(...) Also (generally) usually less than 1uf (...) and generally >= 1uf (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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|
Kind of. Electrolytics are indeed made by plates in a conductive solution, however when the voltage increases, it pulls the plates together (standard columbs law stuff). When you exceed the rated voltage the force on the plates is enough to pull the (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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Generally, cost, accuracy, size, and drift. Ceramic caps are expensive ($/pf) reasonably stable across temperature and acceptably accurate. Electrolytic capacitors are cheap ($/pf) only moderately stable across temperature changes, polarized, and (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | smooth PWM!!!...!!!
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|
hi everyone, i like to ask something on the PWM of the handboard. if i only do a command: motor(2,50); motor(3,50); i will get a smooth PWM of 500 Hz of waveform.( -_-_-_-_ something like this) but if i implement the above command into a program (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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|
As long as we are talking about caps, I cannot find the information about why one uses tanatlum caps vs ceramic caps vs electrolytic. What are the differences between the various types? Thanks, Gary Livick (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: I hope someone can help me...
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|
(...) If it is the note I posted, also get the followup. The initial post I think I made a couple errors, and then someone said their chips got hot :-o. Anyway a followup post corrected the information. (...) If you look at the pinouts for the 293 (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | RE: Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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|
Sorry to say, but the capacitance does change depending upon the applied voltage. As you increase the plate voltage a force is created pulling the plates together. This effectively INCREASES the capacitance. The good news is that this enhancement is (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | I hope someone can help me...
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|
I am planning on getting some LMD18200 motor driver chips from National Semiconductor and I found some info about which pins go to what by doing a search in the H-Board archive. Great resource by the way. It expalains how to take one of the standard (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Polaroid Sonars
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|
Hi everyone, It seems that the world's Polaroid Sonar reserve is almost depleted. Polaroid is currently in the manufacturing process to produce more. The company www.acroname.com still has them in stock if anyone is interested. ---...--- ericson mar (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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|
Capacitance is calculated using the area of the plates, the dielectric constant, and the distance between the plates. It does not have anything to do with the voltage. If a thicker dielectric is formed, it will reduce the capacitance. This is not (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | RE: new intranet ip
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|
(URL) now points to the new site also. Doug -----Original Message----- From: mark williamson [SMTP:markw@tabnet.com] Sent: Friday, March 19, 1999 2:42 PM To: Andy Stevens; Brad Davis; Brendan Benzing; Caitlin McGillicuddy; Carlie Ross; Chris (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Electrolytic Capacitor Ratings [was Re: Choosing Parts?]
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|
(...) listed (...) Your comments aren't taken as being harsh, but I'm still not sure I agree. Now I must say that my comments are based on something I heard in the rummer mill, but it still sounds plausible. What I heard goes like this. Electrolytic (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Polaroid Sonar
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|
Greetings, Acroname has them on their parts list, though I am not certain if they have them in stock (www.acroname.com). Marco A. A. de Oliveira assfalk@eece.unm.edu /---...---| /---...---/ CNPq Scholarship Awardee | | Research Asst. | | | ACE SMR (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | handyboard clock speed
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|
Ive checked the mailing list archives and i cant find a simple answer to the following question: Is it possible to run the HB at >2Mhz? That is, can I run a different version of the 6811 perhaps and get 8Mhz? What are the advantages/disadvantages? (...) (27 years ago, 22-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Mobile Robot Question
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|
(...) Can anyone answer all that? I think the answer is "it depends". Unfortunately it depends on so many variables that you'll just have to implement one system at a time, checking each thoroughly and modifying as you go. Make sure to go back and (...) (27 years ago, 21-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Polaroid Sonar
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|
(...) The Mondotronics Robot Store was selling them, but the price wasn't great. Instead of about $50 per transducer/board combo, they were selling pairs for $150 last time I checked. -- Will , , __@_/ \_@__ |/ | /__, o @_/ )\ ) ( \ (\/\\, ~~~...~~~ (...) (27 years ago, 21-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Choosing Parts?
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|
(...) I don't mean to be harsh, but this isn't exactly correct. The voltage is the highest the capicitor is rated for. if you have a 12V circuit it won't hurt to put in a 200V cap, but you'll need lots of room. Generally for safty, in high current (...) (27 years ago, 21-Apr-99, to lugnet.robotics.handyboard)
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| |
| | Re: Choosing Parts?
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|
In a message dated 4/21/99 1:08:33 AM Central Daylight Time, josr0633@cetus.zrz.TU-Berlin.DE writes: jos runarko: (...) For electrolytic capacitors, you want the printed voltage to be the closest voltage above the voltage you are operating at. The (...) (27 years ago, 21-Apr-99, to lugnet.robotics.handyboard)
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| | Choosing Parts?
|
|
Hi, in Katalogs, there are many capacitors with the same capacity value but different voltage and tolerance. My question is, which voltage should I choose: above the operating voltage of 12 V? Second, the tolerance the lower the value it has a (...) (27 years ago, 21-Apr-99, to lugnet.robotics.handyboard)
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| | Re: help on replacement part
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yes. fred (...) (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | Mobile Robot Question
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Hi, I'm building a mobile robot using an R/C car with an Electronic Speed Controller (ESC) as the mobile platform, the Handyboard for sensorial data aquisition, and servo control; and a Linux "box" for GPS, videoconferencing, wireless (...) (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | help on replacement part
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Can anyone please tell me if a 50 v replacement for part C7 and C9 will be ok instead of the normal 63v one? -Jon Schuck (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | Polaroid Sonar
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Anyone know where to get a Polaroid Sonar besides Wirz elevtronics and Polaroid Corp? They are both out of the product. Thanks for any input. ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 Department of Mechanical Engineering (...) (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Polaroid 6500
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Scott Sherman, My name is Fabian Lopez and I am to begin hooking up a polaroid sonar transducer to my handyboard.....any words of wisdom. Hola from New Mexico (...) (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | Spurious IR signal
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Dear IR users, I recently have begun experimenting with IR sensing for my HB by using an IR led and a 3 pin detector (Everlight IRM8100-3-M available from Radio Shack, cat no 276-137a). The LED is driven by a 38 KHz square wave (50/50 duty cycle). (...) (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | GP2D12
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Looking for this part. Does anyone know where to get it? ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the Advancement of Science and Art ---...--- (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | Re: GCC/HC11 small patch
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Patch 1.2 to the GCC/HC11 compiler is now available on my FTP site: ftp.eskimo.com/u/a/a...est.tar.gz This new patch includes the patches by Otto Lind, Dr. Steven Barnicki, Keith Hearn, and myself. It is patch 1.2. Also, I put the latest snapshot of (...) (27 years ago, 20-Apr-99, to lugnet.robotics.handyboard)
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| | pcode_hb.asm
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Does anyone know where the latest pcode_hb.asm file can be found? Also, does one use as11 to assemble this thing, and are there include files that have to go with it, etc? I assume that dlm can be used to download the resulting .s19 file, am I wrong (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | Help on selecting MOSFET
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Can someone give me the name of a P-channel depletion mode MOSFET that can handle like 6+ Amps. Thanks for any leads at all. :) ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard sudden turn off`
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Phillip, This happened to me once, and it was because I had an electrolytic capacitor installed backwards. You obviously have something drawing a lot of current, so if you check the caps and everything looks ok, it is somewhere else. Lacking any (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Vector Compass problem
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(...) I have seen that too. maybe have you main call comp_disable, do some stuff, and call comp_init. It may fix the problem. The compass should reset properly on it's own, but doesn't always. (...) Check you environment with a regular old compass, (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | Vector Compass problem
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hi, i am currently trying to interface the vector 2x compass with the handyboard given the info and code provided on the handyboard web page. i am having 2 problems with it. 1) occasionally the compass doesn't produce a clock signal until i reset it (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | SMT & PTH Assembly equipment - buy or sell
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Hello, If this message has inadvertently reached the wrong individual in your organization, please forward it to your manufacturing manager. My name is Lee Anderson and I represent Manufacturing Automation, Inc. We are a buyer and seller of new and (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | Handyboard sudden turn off`
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Hi , I really need help. It's urgent!!! When I turn on the HD, the LCD did not appear anything Moreover, the program is not running running once I download and pressed start. The worst part is that the U13 LM7805 CTB is getting HOT that can burn my (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Sonar and Compass
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Hi Tom, I would be instrested in using your code for using both sensors when completed. I used your eariler code for the v2x and it works great, Thanks for your contributions and dedication to help those less competent writing code. bye. ---...--- (...) (27 years ago, 19-Apr-99, to lugnet.robotics.handyboard)
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| | 12v SLA Battery
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Hi all, I'm currently putting together a handyboard system, and my question is, can I simply use a 12v sealed lead acid battery in place of the 9.6v rechargable pack? I know that the interface board won't be able to charge the SLA, but apart from (...) (27 years ago, 18-Apr-99, to lugnet.robotics.handyboard)
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| | Re: first step in assembly of the handy board...
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(...) If you are at section 4.1.2 of the assembly manual, follow the debugging routine outlined in 4.1.3 ie. check the DC adapter for polarity, check the LED for polarity, check the orientation of U13 and D3... Hope this helps, Duncan (27 years ago, 18-Apr-99, to lugnet.robotics.handyboard)
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| | first step in assembly of the handy board...
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I'm kinda new at this...Can anyone tell me what voltage I should be checking with my multimeter(1000 or 200 or 200M etc..)? I'm on the first testing stage of the main assembly of the handy board and I get no voltage and GND and +5v spot, also my led (...) (27 years ago, 18-Apr-99, to lugnet.robotics.handyboard)
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| | Connection Serial Board <-> Handy Board
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Dear Handy Board user, I have several question regarding the Handy Board, but first I want to ask you about the connection between the Serial and the CPU Board. 1. I saw in the part list the use of a RJ11 6/4 top entry at the CPU side and the use of (...) (27 years ago, 18-Apr-99, to lugnet.robotics.handyboard)
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| | GCC Handyboard Library
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For all of you (2?) who have been anxiously awaiting the Handyboard library for the GCC compiler: It ain't ready yet. :-( Keith Hearn and myself have been working hard at different pieces of it, and we're hoping to have a merged library sometime (...) (27 years ago, 16-Apr-99, to lugnet.robotics.handyboard)
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| | Please help
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Hello all, I want to power some twelve volt gearmotors (The kind currently available from Acroname) with the H board without extensively (or permanently) modifiying the H board. My plan is to use some MOSFETS that have a low voltage gate threshold (...) (27 years ago, 16-Apr-99, to lugnet.robotics.handyboard)
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| | Help on Microprocessor circuitry(4.1)
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I'm having a lot of trouble with the first assembly of the handy board(4.1)...I installed all the parts, but the led does not light and I get zero voltage at GND and +5v...What could cause zero voltage accross the board??? I already switched D3(like (...) (27 years ago, 16-Apr-99, to lugnet.robotics.handyboard)
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| | Re: Sonar and Compass
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(...) I have started working on an expansion board version of the compass code. I won't have it done before fall probably (unless is snows or something really bad). I am involved in another huge project right now. My thoughts are to have the compass (...) (27 years ago, 16-Apr-99, to lugnet.robotics.handyboard)
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