 | | Re: sharp GP2D02
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Hi everybody: I'm new at using the GP2D02 sensor. these might be some dumb questions but, I know that the sensor plugs into the digital input of the handyboard and one digital output of the expansion board but how do i program it to know which ports (...) (26 years ago, 3-May-00, to lugnet.robotics.handyboard)
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| | Communication system
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Hi, Does any one know how to use(Program) Ming Microsystem RF transmitter and Receiver with handyboard? Thank you all for your inputs. Lee (26 years ago, 3-May-00, to lugnet.robotics.handyboard)
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| | Problem with analog() proc using IC 2.81
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Hello, everyone: I have 18 HandyBoard/LEGObugs and I'm in the process of building 18 expansion boards with 9 completed so far. I use the public domain IC 2.81 (for William & Mary, like most schools, the price is right) on a LINUX platform. I have (...) (26 years ago, 3-May-00, to lugnet.robotics.handyboard)
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| | Re: heart beating slowly.
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Dear Lee, It sounds like your HB's heart is suffering from Murphy's syndrome........ Hope your presentation will go well. :-) Marco (26 years ago, 3-May-00, to lugnet.robotics.handyboard)
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| | heart beating slowly.
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Hello, My handyboard was acting really strangely last night. we were testing servo motors with expension board last night and it began to show unreadable characters on LCD display panel. BY the end of the night it recovered displaying letters (...) (26 years ago, 3-May-00, to lugnet.robotics.handyboard)
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| | Input Capture
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Hi Is it possible to use digital(8) as an input capture like digital(7)? Must I cut the 47k resistor? Thanks Martin (26 years ago, 2-May-00, to lugnet.robotics.handyboard)
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| | Clinton Acts to Make GPS Systems More Accurate
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I guess now I could use GPS for the navigation of my robot. GPS signals are now unscrambled. (URL) Mulampaka Software Engineer e GE Global eXchange Services ___...___ Ph#: (770) 698 4436 (O) (770) 390 0887 (R) (26 years ago, 2-May-00, to lugnet.robotics.handyboard)
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| | Sonar and overflow
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Hi I've tried to use my Polaroid Sonar not only for distances up to 2.7 meters. So I want to check the overflow flag. But my code doesn't work. Can anybody give me some advises? Here is my code: long sonar_sample() { int start_time; int help; (...) (26 years ago, 1-May-00, to lugnet.robotics.handyboard)
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| | CANCEL
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(...) are being refunded each year. (...) utility/telecommunication billing has errors. It’s true! At CDG we find errors, refunds, credits and/or savings for 98% of our clients. Just a small error in your gas, electric, water, data and/or (...) (26 years ago, 29-Apr-00, to lugnet.robotics.handyboard)
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| | Ming Microsystems communication system.
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Hello, My team mate and I have built two robots for our senior project. We have been trying to build a communication system between them and now at this point we got STUCK. Our question is how do you send out(transmit) signals through handy board. (...) (26 years ago, 29-Apr-00, to lugnet.robotics.handyboard)
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| | Re: CWRU LEGO Robot Egg Hunt Competition (Sunday, 30 April 2000)
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(...) I'll try to be there! And I'll be attending CWRU in the fall, just got the confirmation of my enrollment today. --Bram (26 years ago, 28-Apr-00, to lugnet.robotics.handyboard, lugnet.loc.us.oh, lugnet.loc.us.oh.cle)
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| | Re: problems met in my project
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(...) There are no simple questions, only simple people! Apologies to whomever originated the quote that I just butchered. ;-) (...) Our robots do not have the rich sensory input that we enjoy. We have to help them along quite often by making their (...) (26 years ago, 28-Apr-00, to lugnet.robotics.handyboard)
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| | CWRU LEGO Robot Egg Hunt Competition (Sunday, 30 April 2000)
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The 10th LEGO My Egg-O Robotic Egg Hunt is being held on Sunday, 30 April 2000, 12:30-3:00 PM, at the Cleveland Great Lakes Science Center. Admission to the Egg Hunt proper is free. The Egg Hunt is the final design competition of the course I teach (...) (26 years ago, 28-Apr-00, to lugnet.robotics.handyboard) !
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| | REFUND
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***...*** If you have received this message in error, please reply with the word CANCEL in the subject line. ***...*** Hundreds of millions of dollars in utility/telecommunication errors are being refunded each year. Recently released government (...) (26 years ago, 28-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Any other handyboard resources?
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(...) Check out this link: (URL) haven't read through the IC manual yet, but the table of contents looks promising. Best of luck! -- Will +---...---+ | ^^ <^ ^> | | / òó ó°° \ | | / =Y= U \ | | Wendy, Will, Tatoosh & Tenzing | +---...---+ If the (...) (26 years ago, 26-Apr-00, to lugnet.robotics.handyboard)
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| | Modifying the tone( ) function
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Dear All I need something like the tone( ) function, but I need to specify the port the signal is output to. Does anyone have some code to do this? Where does the code for the tone( ) function reside in the lib directory? Maybe I could copy it and (...) (26 years ago, 26-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Robotic Simulation
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Do you actually want to do the simulation, or just show what your robot would do? The easiest way will be to create a model of your Robot in 3D Studio MAX then write the inverse kinematics rules as a MAX plug-in, then run the rules and capture the (...) (26 years ago, 25-Apr-00, to lugnet.robotics.handyboard)
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| | Robotic Simulation
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Hello. For one of my project in robotic, I would like to create a computer simulation (possibly 3D) in order to show the special functions performed by my robot. I would like this program to run under a windows (9x or NT) or linux platform and run (...) (26 years ago, 25-Apr-00, to lugnet.robotics.handyboard)
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| | Any other handyboard resources?
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Dear friends, Can anyone tell me where can I find some more references on the handyboard and the Interactive C programming (other than the MIT handyboard homepage)? I have built the handyboard from Hong Kong. I have read the handyboard technical (...) (26 years ago, 25-Apr-00, to lugnet.robotics.handyboard)
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| | ICn for a Mac?
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Has anyone ported Kurt Konolige's ICn compiler to the Mac or MSDOS? Thanks! George Musser georgejr@musser.com (26 years ago, 25-Apr-00, to lugnet.robotics.handyboard)
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| | Re: RCX vs. HandyBoard
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|
(...) Here's one I can answer, at least a little bit: There's an HC11 port to gcc-2.8.1 and a Handyboard library to go with it. There's also a GCC-2.9.5 version out there. (URL) get you to either one. I program my Handyboard using Linux and GCC (...) (26 years ago, 25-Apr-00, to lugnet.robotics.handyboard)
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| | Re: RCX vs. HandyBoard
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|
(...) Here's one I can answer, at least a little bit: There's an HC11 port to gcc-2.8.1 and a Handyboard library to go with it. There's also a GCC-2.9.5 version out there. (URL) get you to either one. I program my Handyboard using Linux and GCC (...) (26 years ago, 24-Apr-00, to lugnet.robotics.handyboard)
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| | driving servos by the handy board!
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Dear Sir, I am a new user of the handyboard. In a robot project of building a manipulator, I have to drive for at least 3 servo motors. I have found the routines for driving two servo motors at the same time from the handyboard info website. But, if (...) (26 years ago, 23-Apr-00, to lugnet.robotics.handyboard)
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| | Re: RCX vs. HandyBoard
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Here are some more specific questions that I still have: 1) Can two handyboards communicate with each other from a distance?, either in the same room (i.e. infrared) or via the internet? 2) Besides Interactive C, what exactly are the other ways that (...) (26 years ago, 23-Apr-00, to lugnet.robotics.handyboard, lugnet.robotics.rcx)
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| | Servo function (new?)
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|
Hello all, here's a servo function that I worked up. It's really very simple, but I figured that someone else might want to use/hack it up. My problem was that I wanted to be able to set the servo (non-continuous) at *any* point in its travel (...) (26 years ago, 23-Apr-00, to lugnet.robotics.handyboard)
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| | IR communication power
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Hi everyone, I am now trying to use the IR transmitter and receiver to communicate two HB. The method seems work, but the main problem is the transmitter power is seems too weak. My HBs can only communicate within a few inches. My question is: Is (...) (26 years ago, 22-Apr-00, to lugnet.robotics.handyboard)
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| | wits end with PWM measurement
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Dear All I'm at my wits end on this one. It's a little routine to measure on PA0 a pulse width of a PWM signal generated on PA7. The two pins are linked with a jumper. I've looked through all the books and and handyboard archive, but all I get is (...) (26 years ago, 22-Apr-00, to lugnet.robotics.handyboard)
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| | Re: RCX vs. HandyBoard
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|
the HB FAQ has some of this. there is a listing of the specific features of the HB. see (URL) your message you said: (...) e (...) t (...) n (...) (26 years ago, 22-Apr-00, to lugnet.robotics.handyboard)
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| | RCX vs. HandyBoard
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is there a website that gives a side-by-side comparison of the features of the handyboard vs. the RCX? i'm giving a series of talks to professors about the rcx and robolab, and some of them have asked about the handyboard, but i don't know a whole (...) (26 years ago, 22-Apr-00, to lugnet.robotics.handyboard)
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| | sonar test and others
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Hi, My sonar is working!, I checked the wires and noticed that when soldered J12, I forget to cut the tail of the wire, maybe this was making contact with other part of the HB, I have also noticed the limitation to measure more than 2.6 m. , has (...) (26 years ago, 21-Apr-00, to lugnet.robotics.handyboard)
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| | memory problems!!
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Hi, I'm writting a C program for the HB that will allow it to be controlled by a LabVIEW software interface. The problem i'm having is that when my C code goes above 8Kb in size IC won'teven compiule it, it just crashes and the dos window closes. (...) (26 years ago, 21-Apr-00, to lugnet.robotics.handyboard)
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| | From Mac to Linux
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Hi, Guys: I meet a strang problem. We developed robot under Mac using IC version 3.1, everything works. Now we move to linux, we let fd(2), but it goes backward, we let bk(3), it goes forward. fd(3) and fd(3) is good. Sonar works. But our four (...) (26 years ago, 21-Apr-00, to lugnet.robotics.handyboard)
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| | Re: New Servo Routines?
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* Giang Tran <gt4025@chi.devry.edu> [000420 21:49]: (...) Silly me, I wasn't thinking that there would still be a mid point to the resistance. I was stuck on the fact that the new resistors would trick it into thinking that it never reached it's set (...) (26 years ago, 21-Apr-00, to lugnet.robotics.handyboard)
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| | sonar test
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Hi, I have connect the sonar to the exp. board, and when I run the function sonar_visual(), then the sonar began to click but I only get this: *****, I believe that the connectios are OK, if I disconect Digital 7, the display shows random numbers (...) (26 years ago, 20-Apr-00, to lugnet.robotics.handyboard)
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| | New Servo Routines?
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Because I have an expansion board, I cannot use my hacked up servo motors together with unaltered motors. In order to stop the hacked servos, I have to call init_expbd_servos(0) which dis-allows use of the other ones. Does anyone have any asm code (...) (26 years ago, 20-Apr-00, to lugnet.robotics.handyboard)
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| | sound generating questions
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hi, we have to generate a square wave for a pizeo buzzer, we would use the one on the handyboard, but this one has to be encased in a shell, which would only be unable to fit the handyboard. we tried just switching a digital out, on and off, and the (...) (26 years ago, 19-Apr-00, to lugnet.robotics.handyboard)
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| | measure the width of PWM pulses
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Dear All Does anybody have a routine to measure the width of PWM pulses from an R/C receiver (ie the pulses which control the servos). TIA David Young (26 years ago, 18-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Sonar Pictures?
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(...) at, (...) Thank you to everyone who sent me a link to a picture of a completed sonar assembly, they've been very helpful even though I still can't get it to work :( As such, I still have questions, but for now this is the only one: - Does it (...) (26 years ago, 17-Apr-00, to lugnet.robotics.handyboard)
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| | problems met in my project
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|
Dear Sir, I am a student who is doing a mobile robot project. Since I am really a freshman in Robotics. So, I would like to ask you to help me to solve some problems met in my project. Please forgive me if my questions are too simple! My aim for the (...) (26 years ago, 17-Apr-00, to lugnet.robotics.handyboard)
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| | Re: handy board troubles...
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|
gary -- it's an interesting bug. as you say you've got two 2-dim arrays, i can surmise that you're using Newton Lab's version of IC. In which case, they'd be the ones to address this problem. re: mailing list, it's now administered through LUGNET. (...) (26 years ago, 16-Apr-00, to lugnet.robotics.handyboard)
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| | Re: handy board troubles...
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This isn't technically a Handy Board problem as my code is being run on a Rug Warrior look-alike. However, I suspect that the same problem I'm experiencing would happen on my Handy Board if eviscerated one of my other robots and tried it. (...) (26 years ago, 15-Apr-00, to lugnet.robotics.handyboard)
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| | How to change the baud rate of Interactive C
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|
Interactive C communicates with the 68HC11 at 9600 baud, but if you'd like to change that -- say, to maintain interactivity over a slow RF link -- it is easy to hack the software, at least in Mac version 3.1. I'm indebted to Randy Sargent who sent (...) (26 years ago, 15-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Battery Charging Question
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Thanks for the tip. I think you are right. I got a NiMH catalogue from Panasonic and it makes some of the same recommendation such as charge rate, etc. It is much like NiCD if you charge the battery "watching the clock". I am planning on building a (...) (26 years ago, 15-Apr-00, to lugnet.robotics.handyboard)
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| | Re: About HAndy board and PIC... last one
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|
Oh, one more thing. I got my Handyboard from Patrick Hui/The Robot Store at Hong Kong. (URL) It is a little cheaper than Gleason Research. Ok, I will say no more.... -- Ray Du Toit, Francois (SEB IS FDP Developers) <handyboard@media.mit.edu> wrote (...) (26 years ago, 15-Apr-00, to lugnet.robotics.handyboard)
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| | Re: About HAndy board and PIC ... one more
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|
Oh, here is something more about my robot. I am programming the PIC to run the legs, so I can take to load off the handyboard. I will still use the handyboard since I like IC. But to have the Handyboard to run that many servos or stepper motors are (...) (26 years ago, 15-Apr-00, to lugnet.robotics.handyboard)
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| | Re: About HAndy board and PIC
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|
Hi, Sorry for taking me so long to reply... I was busy working on projects... Actually, I am not a good person to ask all these questions. I am also just getting started on this.... I want to first refer you to another site: (URL) This page contains (...) (26 years ago, 15-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Sonar Pictures?
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|
Joe! Here's another pic of the sonar interface to the HB. Note that there are two ways to connect the sonar to the HB. One approach is to use the control lines to the L293 motor driver chip and the other is the SPI port. I've included both. Note (...) (26 years ago, 15-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Sonar Pictures?
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(...) Try this picture: (URL) This shows the cap soldered in and pretty much hooked up. Hope this helps -Jim Munro <jimmn@xnet.com> (26 years ago, 14-Apr-00, to lugnet.robotics.handyboard)
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| | Sonar Pictures?
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Does anyone have pictures of their sonar assembly online that I could look at, just to make sure everything is where it should be? My sonar is still hovering around one reading (today it's 1300, the other day it was 700) no matter where an obstacle (...) (26 years ago, 14-Apr-00, to lugnet.robotics.handyboard)
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| | Re: DC motor question
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|
(...) [snip] (...) Bingo. Put .1uf caps (rated at least 4X your max voltage) from the (+) pole to the can, from the (-) pole to the can and from the (+) to the (-) pole. Keep your leads as short as possible. Put a big cap (1000uf+) on the power (...) (26 years ago, 14-Apr-00, to lugnet.robotics.handyboard)
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| | DC motor question
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Hi, I am using DC Motors for the first time (previously used stepper motors) and have been experiencing difficulties when first powering on the handyboard. When I first turn on the power, occasionally the motors start up at full speed for no (...) (26 years ago, 14-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Eltec 442-3
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|
(...) Perhaps you could waggle it back & forth (on a servo or something) to simulate motion. -- Will +---...---+ | ^^ <^ ^> | | / òó ó°° \ | | / =Y= U \ | | Wendy, Will, Tatoosh & Tenzing | +---...---+ The difference between reality and fiction? (...) (26 years ago, 13-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Eltec 442-3
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|
(...) Move the sensor, or the bot. If you sweep right to left you will detect the heat in front of you. -- Eric (26 years ago, 13-Apr-00, to lugnet.robotics.handyboard)
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| | Eltec 442-3
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Hi all I just recieved a new Eltec Pyroelectric sensor from acroname and have been messing around with it on my bot. In the booklet it says that the sensor is a Human Motion detector as apposed to a human presence detector. when there is a heat (...) (26 years ago, 13-Apr-00, to lugnet.robotics.handyboard)
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| | Sonar
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I finally got some time and tried to put together the sonar assembly we purchased from Acroname (unit R14-SONAR1 - Instrument Grade Kit). All the wires are jury-rigged up (didn't want to permanently afix them yet) but they seem to all be making (...) (26 years ago, 12-Apr-00, to lugnet.robotics.handyboard)
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| | Re: More torque
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One word "Chopper" Nearly every commercial stepper motor driver I have ever seen uses a chopper circuit. This is because torque is related to current (actually its related to magnetic flux but that's related to current :-). The operation of a (...) (26 years ago, 12-Apr-00, to lugnet.robotics.handyboard)
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| | Re: about robots and handy board
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|
Francis, Thanks for the info! I'm not an expert, but doesn't PIC stand for "Peripheral Interface Controller"? Well, I guess it's all just semantics, they both could be correct... Just wondering, John Wynne (...) (26 years ago, 12-Apr-00, to lugnet.robotics.handyboard)
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| | More torque
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Is there an easy way to get more torque out of a stepper motor? Upping the voltage is not an option at this time. I've already decreased the width of the pulses enough (so that it has enough torque to start on its own without a push) that it goes (...) (26 years ago, 12-Apr-00, to lugnet.robotics.handyboard)
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| | Re: about robots and handy board
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|
Dear Francois A du Toit: PIC stands for Programmable Integrated Circuit. Generally it is what we call a microcontroller. You write a program in Assembler, burn that program into the PICs EPROM or EEPROM. Then when you put the PIC in its circuit, it (...) (26 years ago, 12-Apr-00, to lugnet.robotics.handyboard)
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| | Handy Board MTBF
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|
no, it has never been evaluated for mean time between failures. fred (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Textbook
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|
(...) "Mobile Robots" is a nice book. I really liked it. Is there anybody who knows more about "Build Your Own Robot!" by Karl Lunt? It's available on-line but I haven't found any reviews for it yet. Does anybody have it? Is it any good? -- Eric (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Textbook
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[Joe Kopena] spake unto the ether: (...) Wait for Fred Martin's book (it's due out in the fall, isn't it?) My self-taught practical engineer's take on robotics is that you can't separate the brain from the body, so to speak. Computer scientists tend (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Textbook
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Hi. Here's a recommendation: Artificial Intelligence and Mobile Robots Edited by: D. Kortenkamp (NASA), P. Bonasso (NASA), and R. Murphy (U. South Florida) MIT Press (1998) This book is a collection of research papers and editorial essays. It is not (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Textbook
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(...) How about the Joe Jones/ Anita Flynn book "Mobile Robots" ? That has alot of good intro materials and it's not too ridiculously expensive. Supports Interactive C too. Either that or the new Karl Lunt book, which I haven't yet seen. Heard it (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | WTB:handyboard
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|
hi, i would like to buy a handyboard or borrow one(i'll pay for usage) for a week from someone on this dlist. my partner and i were going to use a HP calculator as a controller for a robot, but we haven't been able to get the compiler to work on the (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | Textbook
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Can anyone on here reccomend a good textbook for a robotics class? The class is intended for upperclass and graduate computer science students who have already taken classes in artifical intelligence. We're going to be using LEGO kits and (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | servos
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Hi, Could someone tell me what the advantages of the servo_a7.icb over the servo.icb are?? thanks (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | Re: About HAndy board and PIC
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|
Hi there Just saw your message and thought I could give you a few tips... I also live in SA and have built a HandyBoard. From my experience so far, a robot built around the HandyBoard is very easy to get going, has a wide range of posiblities and is (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | About HAndy board and PIC
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|
I have read od a newsgroup of robotics that you have build a robot with the Handy Board with a PIC. What advcie can you give me . I have to start from scrath . What I need to buy Handy Board + (what componets+tools??) to build a soccer player (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | brushless motors
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has anyone had any success hooking up brushless motors to a handyboard? basically, the problem i'm having is there is only one gnd pin on the motor, which is both for the internal digital logic and to sink the current through the motor. it's a (...) (26 years ago, 10-Apr-00, to lugnet.robotics.handyboard)
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| | Time measuring problems
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Hi all, I hope someone out there can help me with this, I'm going nutz (actually i think i'm already there). I am trying to measure a short period of time. Ultimately this will measure ultrasonic ping/echo using Kam Leang's ultrasonic circuit. Right (...) (26 years ago, 8-Apr-00, to lugnet.robotics.handyboard)
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| | What is the best brand/type of rechargeable battery and recharger in sizes AAA-D ?
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Hello, I was wondering what types/brands of rechargeable batteries people have used and recommend for common use in electronics such as alarm clock, portable radios, etc.. Thanks, John Jeong (26 years ago, 8-Apr-00, to lugnet.robotics.handyboard)
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| | Re: 5V of trouble
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those two things together strongly suggest that your crystal isn't running. any chance you can get a scope or logic probe to verify this -- measure the E clock output of the 'hc11 (pin 5). also, check that you've properly installed a 2.2 megaohm (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | 5V of trouble
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i'm assembling the handyboard according to the instructions found on the HB site. When measuring the E clock signal using a voltmeter, i register 5V instead to the anticipated 2.5V. i've re-checked all the solder joints but there doesn't appear to (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Output to file option for IC?
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(...) Here's a stupid idea, but might be the simplest: Run a dumb terminal program. I keep a very old version of Telix for DOS around for this purpose. Most of the dumb terminal programs have some option or other for logging or capturing to a file. (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Motor Drivers
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(...) As others have said, the system should be able to drive this. However there are some obvious 'thoughts': 1) A light that draws 300mA when running, will _momentarily_ draw a much higher value when the bulb is cold. The actual ratio between the (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Output to file option for IC?
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We have a system that was designed to let you run IC-like code on a host as if it were running on the HB. We use the HB as an extension to a larger mobile robot (the HB turns on lights, motors, etc. Our robot served candy via voice command at last (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Output to file option for IC?
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It would be cool if IC can output results to a file. well, since it can't does anyone have code available for borland c++ which will receive data over the serial port? I found some code from earlier posts, but can't seem to find one that works. I (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Motor Drivers
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300 mA shouldn't be a problem. are your main batteries low? alternately, are you sure it's 300 mA at 9v? can you measure it somehow. fred In your message you said: (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Motor Drivers
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I am trying to run a light with the motor outputs on the handy board. I looked up the spec on the L293D and it claims to be capable of 600mA constant and 1.2A peak. The miniature light I am using draws about 300mA. When the light comes on the handy (...) (26 years ago, 6-Apr-00, to lugnet.robotics.handyboard)
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| | Re: sonar mapping with evidence grid
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(...) home (...) I have read that it is not actually a solid cone angle, but a peak central lobe and a few side lobes. I think the best way to figure this out is to mount your sonar sensor on a rotatable head and go out to an open field. Place a (...) (26 years ago, 5-Apr-00, to lugnet.robotics.handyboard)
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| | Re: LED's
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[Derek Healy] spake unto the ether: (...) This is just an idea skeleton, but not too hard to flesh out, if you've worked with TTL. The Handy Board memory map maps some upper 32K addresses to I/O "ports". Look at the schematic and you can see which (...) (26 years ago, 5-Apr-00, to lugnet.robotics.handyboard)
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| | LED's
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Hi, could anyone tell me how I might light LED's in sequence so that they would simulate a rev counter of an automobile & to also simulate the speed counter. I need to know how I might wire them up and how I might be able to program them using time (...) (26 years ago, 5-Apr-00, to lugnet.robotics.handyboard)
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| | Losing HB memeory
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Hi all, i am having some trouble with the HB memory. i have some calioberated values stored as persistent globals. after running the program few times the HB tends to lose the stored values. What could be the problem? Many thanks Fazal (26 years ago, 5-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Diodes for Sonar Assembly
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yes, this is fine. the 5404s have a higher voltage rating, so they're "better". the 5401's are specified because they'd be cheaper and are already more than adequate. fred In your message you said: (...) I (...) e (...) (26 years ago, 4-Apr-00, to lugnet.robotics.handyboard)
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| | Diodes for Sonar Assembly
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On the official plans on the HB web site, it says to connect 6 1N5401 diodes for a voltage drop. Can I use 1N5404s instead? We got our sonar module the other day and are itching to try it out. After visiting various Radio Shacks I couldn't find the (...) (26 years ago, 4-Apr-00, to lugnet.robotics.handyboard)
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| | Re: IR decode disabling
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I came across the same line in the lib_hb.c-file, hoping to achieve more performance but as I was told by Fred Martin, the default setting is OFF. Dirk (26 years ago, 4-Apr-00, to lugnet.robotics.handyboard)
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| | Re: sharp gp2d12 infrared ranging sensors (fwd)
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A little known fact is that this does NOT work on inputs 3, or 6. Cutting the leads on 1,2,4, or 5 works just fine. If you cut the traces on 3, or 6, simply put a solder bridge across the signal and 5V leads to put things back to normal. If you run (...) (26 years ago, 4-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Gleason Research
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Dear Joe Kopena: We are here and are sorry you have found any difficulty in getting a prompt response. We have no record of having received email from you yourself. We have recently faxed a quote to another party at Drexel. Perhaps your email was (...) (26 years ago, 4-Apr-00, to lugnet.robotics.handyboard)
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| | Re: sharp gp2d12 infrared ranging sensors (fwd)
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hi has anyone successfully used these with the handyboard? i know that we have to cut the lead from the 47k pull down resistor for the sensors to work, but once doing that (we confirmed that it was cut through an ohmmeter) it still doesn't read (...) (26 years ago, 4-Apr-00, to lugnet.robotics.handyboard)
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| | Gleason Research
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We haven't been able to get into contact with Gleason, they're not answering our eMails. Has anyone else had a problem? (26 years ago, 3-Apr-00, to lugnet.robotics.handyboard)
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| | array sizes
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Hi Does anyone know whether the array sizes in ic are limited in any way other than the physical memory constraints? thanks Ross (26 years ago, 3-Apr-00, to lugnet.robotics.handyboard)
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| | IR decode disabling
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Hi everybody, I try to disable the IR decoding, as it is written in lib_hb.c that it take 11% of CPU time, and that it is default ON. So I add the line at begin of main : bit_clear(0x39, 0b00000010); to disable it. I noticed no improvement, but when (...) (26 years ago, 3-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Non-volatile memory storage?
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(...) Hi, Brad, You may use one non-volatile memory to subsitute HY62256 directly. Our company has 32k non-volatile ram AS62256. Ellen Grandar Co. Shanghai, P.R.China (...) (26 years ago, 3-Apr-00, to lugnet.robotics.handyboard)
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| | RE: Non-volatile memory storage?
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Brad, I know in the Mobile robots book they used a Ram chip that had a built in battery back up, whether this would work in the Handyboard (Possible opposing voltage problem), or indeed where you'd get it from. Matt (...) (26 years ago, 2-Apr-00, to lugnet.robotics.handyboard)
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| | Non-volatile memory storage?
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Anybody know a way to store code in the non-volatile memory of the handy-board? If the board is not battery backed by the 12V pack I lose all memory in RAM. Thanks guys. P.S. I am also looking for a timing routine, a way to have a program run for a (...) (27 years ago, 1-Apr-00, to lugnet.robotics.handyboard)
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| | Re: Question about uP's
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(...) I'm using an E9 part in a couple of Handyboards. When you set up the CONFIG register (I think most of the downloaders do this for you), you end up disabling the internal ROM and then it looks like an A1 part or so. Works great for me. I think (...) (27 years ago, 1-Apr-00, to lugnet.robotics.handyboard)
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| | ADXL202 use with HB?
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On Slashdot ( (URL) ) there is an article (URL) ) that talks about a tilt sensor/accelereometer that was connected to a Palm Pilot for gaming purposes. The ADXL202 (URL) ), from Analog Devices, seems to be a perfect sensor for a Handy Board based (...) (27 years ago, 31-Mar-00, to lugnet.robotics.handyboard)
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| | selling my handyboard and misc
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Hi, I'm selling a fully assembled handyboard(incl. adapter,nicad, and case) since it no longer meets the specs for my new projects and need some cash to help purcahse new parts. It is about a couple years old but still in great condition. Also I (...) (27 years ago, 31-Mar-00, to lugnet.robotics.handyboard)
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| | Programming Problem
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Hi everybody, I have a software problem hope any expert can help me.. thanks.. I'm using IC ver. 3.2 for my project, when I run the main() program, it said I have not enough stack space. One of my sub-function program also have the same condition (...) (27 years ago, 30-Mar-00, to lugnet.robotics.handyboard)
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