 | | handyboard in Canada? (Montreal?)
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I'd like to know, is anyone here from Montreal or the rest of Canada? Is there any distributor for handyboard parts or kits around here? All the ones I find are in the states (or hong kong...) -- You do not wish to know anything, you wish only to (...) (24 years ago, 21-May-00, to lugnet.robotics.handyboard)
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| | Re: Sharp analog distance sensor
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Follow this link for data about the GP2D12. At the bottom, there is another link for Handy Board interfacing information. You have to cut a trace because the analog inputs on the Handy Board are connected to pullup resistors. The GP2D12 won't work (...) (24 years ago, 20-May-00, to lugnet.robotics.handyboard)
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| | Sharp analog distance sensor
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Greetings, I've looked, but don't seem to be able to find any relevant info. How does one hook up one of these beasts to the handyboard? I remember reading something somewhere that a track needs to be cut to do this - something I would like to avoid (...) (24 years ago, 20-May-00, to lugnet.robotics.handyboard)
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| | multiplex other analog ports than analog 0 & 1
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(...) These two (...) ports. (...) I built the Expansion board in order to control servos. I cannot use the additional analog inputs because I have destroyed analog port 0 and 1. Is it possible to multiplex other analog ports? What software changes (...) (24 years ago, 19-May-00, to lugnet.robotics.handyboard)
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| | UV sensor
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Has anyone used the Hamamatsu C3704 Drive Circuit and the R2868 Flame Detector with the handyboard? The detector works great on my scope but I can't get the Handyboard to read it on a digital in port. Do you have to add a capacitor to lengthen the (...) (24 years ago, 19-May-00, to lugnet.robotics.handyboard)
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| | Re: [kinda OT] Using other processors (6809)
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(...) That's what I was thinking too. But there is another consideration: the 6809 is a different class of processor than the 68HC11. The HC11 is a microcontroller while the 6809 is more of a general puropose microcomputer CPU. Although either could (...) (24 years ago, 18-May-00, to lugnet.robotics.handyboard)
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| | Re: making your own handyboard.
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Vic, Lots of programs handel Gerber files. They are the standard for print / storage of PCB board files. If you don't have such a program, then download one form the numerous freeware/shareware sites. Most electrical type programs would give this (...) (24 years ago, 19-May-00, to lugnet.robotics.handyboard)
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| | Re: [kinda OT] Using other processors (6809)
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Vic, Depends on if you want to be done this year or not. If time and money are no object, designing and building your own board from scratch would be exciting and after just a few interations you could probably have one that is reliable. By the time (...) (24 years ago, 18-May-00, to lugnet.robotics.handyboard)
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| | [kinda OT] Using other processors (6809)
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A friend told me he has a development system for the motorola 6809 and he could give it to me. I guess this would be good, I would be able to make my custom boards. But, how does the 6809 compare to the 6811 or other microcontrollers (Basic Stamp, (...) (24 years ago, 18-May-00, to lugnet.robotics.handyboard)
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| | making your own handyboard.
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Hi. I'd like to make my own handyboard if I can find all the parts in my city. But I have a problem with making the PCB... I have a friend who has a plotter and could draw it, but the layout files are GIFs and he uses Autocad (old computer, old (...) (24 years ago, 18-May-00, to lugnet.robotics.handyboard)
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| | Re: Ultrasonic maximum timing
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Hey all -- I was wrong about the speed of sound. The mistake I made was forgetting that the sonar measures round trip time, so the constant I experimentally determined for use in my code actually represents *two* centimeters per 143 clock ticks (...) (24 years ago, 18-May-00, to lugnet.robotics.handyboard)
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| | Re: how many servos on handyboard?
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Ray, Whoops, just read my message again, and realised I had stated STEPPER motor, and not the intended SERVO motor. I have used the HB to control 4 SERVO motors. The SERVO's had an external 5V power. The GND of the SERVO supply was attached to the (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | RE: how to drive extra steppers with handyboard
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i ended up using two SSC II's to control the twelve servos on my robot because most of the time the servos connected to the XB would not work. the SSC II servos worked almost all the time. (URL) think this is the web address and the SSC II's connect (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | RE: how to drive extra steppers with handyboard
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Try Scott Edwards SCC II Servo controller. (...) This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | Expansion board cannot handle more than 2 servos
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Hello, Reading the discussion on servos recently, I thought I'd share this info with you. I have advised a few student group projects involving servos and the XB and came to the conclusion that the XB cannot handle more than two or so servos. The (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | RE: how many servos on handyboard?
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Remeber also that you have to cut the motor power trace and use an external 5V source for the motors in this case. The HB itself will output 9.6 V from the motor ports. (...) This message is for the named person's use only. It may contain (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | how to drive extra steppers with handyboard
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I'd like to build a six legged robot. that would need at least 12 servos. Is there a way to control 12 servos or more with the standard handyboard? someone said it's all in the code (using digital outputs) does that mean I could write the code to do (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | Re: how many servos on handyboard?
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(...) Hi If you use the expansion board, you will loose analog input 0 und 1. These two inputs are multiplexed on the exp board, so you get some more analog ports. -Martin (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | Re: how many servos on handyboard?
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The base Handy Board is designed to control 4 DC motors. The DC motor output ports CAN be used to control 4 (four) stepper motors. Remember that a stepper motor needs a square wave pulse continually sent to the motor for operation, and the mark / (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | Re: how many servos on handyboard?
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(...) The deal is this: Servos are different from plain old DC motors. They have gearing and position control circuitry built in. There are four DC motor ports on the basic HB, but no ready-made servo ports. The dual servo routine described on the (...) (24 years ago, 17-May-00, to lugnet.robotics.handyboard)
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| | Stepper Control
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I am a new Handyboard user and would like to control a pair of 5 wire unipolar stepper motors. I followed the links in the FAQ related to steppers which included some IC code. My problem is that my Handyboard won't load that particular code written (...) (24 years ago, 16-May-00, to lugnet.robotics.handyboard)
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| | how many servos on handyboard?
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I'd like to know how many servos the handy board can control. On the FAQ it says 2, in the documentation it says 4 DC motors. what's the deal? (am I stupid? I'm new at this) also, when you plug an expansion board, do you get 6 EXTRA servos? or those (...) (24 years ago, 16-May-00, to lugnet.robotics.handyboard)
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| | Re: Ultrasonic maximum timing
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(...) Except that I don't think it counts at 2Mhz, rather I think it counts at 500Khz (2 / 4 = ECLK) (I may be totally off base here, since I've not read the pink book in about 6 years) that would put your max at 32767/500000 = .0655 at 1000 ft/sec (...) (24 years ago, 16-May-00, to lugnet.robotics.handyboard)
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| | Re: Ultrasonic maximum timing
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(...) I think the register maxes out at 32767. Since it's a 2 MHz processor, this gives: (32767 cycles) / (2,000,000 cycles/second) = 0.01638 seconds Up here in the Rocky Mountains, the speed of sound is about one centimeter every 143 (...) (24 years ago, 16-May-00, to lugnet.robotics.handyboard)
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| | Ultrasonic maximum timing
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Greetings all, I'm using a homebuilt sonar based on Kam Leang's design, which seems to be working quite well. I just have one question with regard to the timing on the input port. I'm using the same sonar driver as for the polaroid - right now I (...) (24 years ago, 16-May-00, to lugnet.robotics.handyboard)
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| | Re: Fwd: hellofriend
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(...) SCAM ! (not SPAM). These Nigerian attempts are well publicised in the media in Australia. They used to arrive by snailmail (my deceased father got one). Email ! moving up in the world ! People have been fooled, the scam is the 5% they remove (...) (24 years ago, 15-May-00, to lugnet.robotics.handyboard)
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| | Re: Fwd: hellofriend
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I've been getting snail mail from this same group for years, always offering to let you have a third of some huge sum of money if you will only help them smuggle it out of their country and into your account. What they actually want is access to (...) (24 years ago, 15-May-00, to lugnet.robotics.handyboard)
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| | RE: Fwd: hellofriend
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What's puzzling is why they thought an Handiboard mailing list was the place to find new pigeons... | -----Original Message----- | From: Keith Hearn [mailto:khearn@legato.com] | Sent: Monday, May 15, 2000 1:35 PM | To: Meabadboy@aol.com | Cc: (...) (24 years ago, 15-May-00, to lugnet.robotics.handyboard)
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| | Re: Fwd: hellofriend
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(...) A sad attempt at a con job. They claim they want yo give you custody of $35M (of whoich you're supposed to keep 30%), and all you have to do is send them your bank account number. Somehow I rather doubt a legitimate offer of this sort (if this (...) (24 years ago, 15-May-00, to lugnet.robotics.handyboard)
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| | Re: using 3v motors?
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In theory yes. Since the motor will be powered by the aux power supply only, as long as it is at 3 volt, it should be OK. (am I right, Prof. Martin?) -- Ray Wayne Crosbie <wcrosbie@home.com> wrote in message news:FuKHs7.B7v@lugnet.com... (...) 400 (...) (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
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| | RE: hellofriend
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Yes, definitely spam! | -----Original Message----- | From: Meabadboy@aol.com [mailto:Meabadboy@aol.com] | Sent: Sunday, May 14, 2000 3:48 AM | To: handyboard@media.mit.edu | Subject: Fwd: hellofriend | | | SPAM??? | | (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
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| | using 3v motors?
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Is there any way to use 3 volt motors on the Handyboard? They draw about 400 ma. Using a series resistor of about 10 ohms works, but it will have to be about 5 watts, consuming a lot of power needlessly. The FAQ shows how to run 6-36v motors through (...) (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
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| | Fwd: hellofriend
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SPAM??? (24 years ago, 14-May-00, to lugnet.robotics.handyboard)
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| | hellofriend
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Date:14th.may,2000 Dear sir, it give us pleasure to request your indulgence in this extremely CONFIDENTIAl business proposition which we want you to handle for us IN YOUR PRIVETE CAPACITY. This total believe and reponse of trust in you, is in (...) (24 years ago, 13-May-00, to lugnet.robotics.handyboard)
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| | Running as11
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Hi, Has anyone been able to run as11 on a Mac? As a first test of the assembler, I've been trying to re-assemble pcode.asm, without success. Specifically, as11 balks at the preprocessor directives. I tried running pcode.asm through the CodeWarrior (...) (24 years ago, 13-May-00, to lugnet.robotics.handyboard)
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| | Re: Household Positioning System Re: DGPS
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I see. Humm. May be I can really use this. OK, if I put a few IR LED with ID at different locations in the room, and put them at the same height as the robot sensor so I don't need to worry about tilt angle. If I put the sensor fixed on the robot, (...) (24 years ago, 12-May-00, to lugnet.robotics.handyboard)
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| | Re: Household Positioning System Re: DGPS
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Actually, I am going in that direction. I was trying to use the ultrasonic transducer to produce a signal and then use two detector to triangulate the location. That wasn't much of a success. I will need to redo the parts. I want to try using more (...) (24 years ago, 12-May-00, to lugnet.robotics.handyboard)
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| | Re: Household Positioning System Re: DGPS
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(...) Some years ago i wrote the presentation part of a prototype system based on ultrasonic beacons. the beacons were plugged into wall outlets and transmitted their ID:s, i can't remember the details but the beacons were syncronized by (...) (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
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| | Re: Household Positioning System Re: DGPS
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(...) No design, just an idea. The way I see it, you put a "Head" on the top of your robot. It has three sensors mounted for tilt and pan. The easiest way I can see it is to use gear head stepper motors with a "Home" switch to point the thing. The (...) (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
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| | (no subject)
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unsubscribe (24 years ago, 11-May-00, to lugnet.robotics.handyboard)
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