 | | Photoreflectors
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Hi ! Can anyone on the list give me a hint where to buy a couple of photoreflectors ? I have a hard time to find them here in Austria and the companies that offer mail order have a minimum order of aprox. $100. Any hint is highly appreciated. TIA. (...) (28 years ago, 28-Aug-96, to lugnet.robotics.handyboard)
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| | Charge polarity on each board opposite?
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Well, I finally broke it. My Handyboard has been a true workhorse, so forgiving of my newbie errors, until now. Mine has a 9.6V Nicad in the case. When I tried to fire it up last, the battery was low so I plugged in the 12V DC supply line from the (...) (28 years ago, 28-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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(...) Ron, Works great! The only problem is that if one were subscribed to several of the individual lists (which I am), one would receive the post several times (which I do!). If I unsubscribe from all but one anticipating all of the "superlist" (...) (28 years ago, 28-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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(...) If all the list servers involved are setup correctly, then any message relayed through the "super list" will still look like it came directly from the individual list - ie: From: user@some.domain To: some.list@some.other.domain (28 years ago, 28-Aug-96, to lugnet.robotics.handyboard)
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| | Blinking Charge Led
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---...--- Forwarded message: From: joeo@symtec.com (Joey) To: joegraphic@aol.com Date: 96-08-26 17:48:35 EDT Forwarded message: (28 years ago, 27-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Servo motor
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Hi Oriol, (...) ^^^^^^^ ||||||| Ooh... that's probably it. Digital input 9 is the one labeled 9. See if that works ... and let us know either way. - Prabal (28 years ago, 27-Aug-96, to lugnet.robotics.handyboard)
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| | Servo motor
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I've been trying to use an RC servo with the HB without success. The servo I'm using is a SRM-101 SANWA. When I start the HB it only turns in one direction untill it gets to the end of its rotation capacity. Any ideas of why it could be ?? Do (...) (28 years ago, 27-Aug-96, to lugnet.robotics.handyboard)
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| | IC v3.1b8 Simulator
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Hi all, In using the 6.270 board simulator that comes with IC v3.1 beta 8, I've been unable to identify any of the analog ports and a couple of the digital ports at the software level. The analog() command doesn't respond to changes in any of the (...) (28 years ago, 27-Aug-96, to lugnet.robotics.handyboard)
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| | Blinking Charge Led
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Hello! When my particularly handyboard boots into bootstrap mode...everything is OK...But when it boots into "normal Mode" with pcode downloaded... the charge led flashes very rapidly.. This happens if the power is connected to the HB itself or to (...) (28 years ago, 26-Aug-96, to lugnet.robotics.handyboard)
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| | Musings regarding Handyboard Expansion & Interfacing
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Still idly thinking on future expansion possibilities for the H/B: ***...*** * MUSINGS ON THE SUBJECT OF HANDYBOARD INTERFACING * ***...*** * Missing Expansion Interface signals * ***...*** Note that the SPI connector seems to have two pins not (...) (28 years ago, 25-Aug-96, to lugnet.robotics.handyboard)
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| | IC com port
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how do you get IC to run on a com port besides 2. i just added a 4-com board to my windows NT system and now the HB is connected to com 3..... thanks then JM (28 years ago, 24-Aug-96, to lugnet.robotics.handyboard)
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| | Subscription Info
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Please point me to the proper subscription address. Thanks, Gordon (28 years ago, 24-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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This discussion all seems silly to me. Some people will want separate lists, some will want all of them jumbled together. Solution: Create a separate list that has all of the other lists combined. Anybody that wants to see all of the lists can (...) (28 years ago, 23-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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(...) That would realy help people like me who are new to robotics and don't know where to get info. just my $.02 =:~) --James James Barros Jbarros@isx.com (28 years ago, 23-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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RE>>Traffic 8/23/96 I like the seperate list for all of them together method. My two cents. Look at my Home page with links to several robotics pages. "(URL) 8/23/96 4:01 PM To: BooneKen (...) I could live without it. I subscribe to two of the (...) (28 years ago, 23-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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(...) I could live without it. I subscribe to two of the mailing lists for a very good reason - I'm only interested in those _two_ mailing lists. If anybody wants them all, let'em subscribe to them all. Regards, Dave -- "Um, no - that's (...) (28 years ago, 23-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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(...) I think its a great idea! It will be good to see and discuss robots in general on one list. ===...=== The pursuit of knowledge is the only | Madness takes its toll. Please path to human fulfillment - Boorstin | have exact change. -- Annon. | I (...) (28 years ago, 23-Aug-96, to lugnet.robotics.handyboard)
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| | IC doesn't work on 8086/8088
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Since the freeware version of IC (2.8x) was running into the 640K limit, I compiled for 286 and higher to reduce code size, assuming not too many folks still had 8086 machines. This is the problem you're running into -- sorry. -- Randy (28 years ago, 23-Aug-96, to lugnet.robotics.handyboard)
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| | Running IC on an old PC
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(...) b> Interactive C does not run! Just loads into memory, then returns b> to the DOS prompt. No signon message, no dos errorlevel return, b> nothing. Memory available = 580000, more than the 486 laptop has b> (570000). The RS232 port is OK - I (...) (28 years ago, 22-Aug-96, to lugnet.robotics.handyboard)
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| | Running IC on an old PC
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Hi, I thought I was smart, salvaging an old (read, "real old") PC to use as a "base station" for programming the HB. It is a 8088-PC original (well, a clone). Has the required port etc, and even a 720/3.5 disk drive, which is semi-compatible with my (...) (28 years ago, 22-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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(...) [snip...] (...) Ah, the pendulum begins its inexorable swing back the other way. I'm all for it. Each of these lists is focused, and I thought the original reason to break up comp.robotics was one faction not wanting to read about another (...) (28 years ago, 22-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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(...) To answer Tony's question, I don't know. To answer Clint's question: I currently subscribe to tcrobots@orbis.net only. I do this mainly to get meeting info and to exchange info about availablity of parts locally. I have little or no interest (...) (28 years ago, 22-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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I agree with the sentiment, don't know what to do about it. There is a pretty big PIC vs. HC11 rift as well. One would think one could separate low-level sensor and mechanical matters from higher level programming and other computer-specific stuff. (...) (28 years ago, 22-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Traffic
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BALSAMOT@pab22a.ssd.loral.com (BALSAMO TONY) wrote to the ROBOT-BOARD mail-list: (...) There hasn't been much traffic in the robot-board mail-list lately... at least compared to the "good old days." There are now TOO MANY robot- related mail-lists: (...) (28 years ago, 22-Aug-96, to lugnet.robotics.handyboard)
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| | Re: compiler eror...
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Hi Sriram, I don't know if this is correct, but I remember reading (?hearing?) something about there being a limit to the number of consecutive if-then-else constructs. For some reason the numbers four and seven come to mind. I may be way off, but (...) (28 years ago, 21-Aug-96, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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Greetings all, This is the sporadic reminder to please DIRECT LIST ADMINISTRATIVIA TO ME PERSONALLY, not to the 150+ people on the list. There is no auto-listserv program reading the mail. That's right, any requests to unsubscribe, add, or change (...) (28 years ago, 21-Aug-96, to lugnet.robotics.handyboard)
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| | compiler eror...
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Forwarded message: (28 years ago, 21-Aug-96, to lugnet.robotics.handyboard)
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| | unsubscribe....
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UNSUBSCRIBE handyboard (28 years ago, 20-Aug-96, to lugnet.robotics.handyboard)
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| | Handy Board List
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Please add me to the handy board mailing list. Thank you, Matt Jones jonesmat@ohsu.edu (28 years ago, 20-Aug-96, to lugnet.robotics.handyboard)
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| | On the e-mail list
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Please add me to your e-mail list ... Tango Yankee Mike Ray Matthews (28 years ago, 19-Aug-96, to lugnet.robotics.handyboard)
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| | Using Servo motors
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I was trying to connect a servo motor to the HB as indicated in the technical reference but found a small problem. The wires of my servo are not color coded as red black and white but as red black black. Is there anyway I could find out which of the (...) (28 years ago, 18-Aug-96, to lugnet.robotics.handyboard)
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| | compiler eror...
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hi, could someone tell me whats a 'yacc stack overflow' compiler error mean?? i had written a long series of 'if-then-else' statements, and each statement was to invoke the motor(int,speed) function... thanks Sriram (28 years ago, 18-Aug-96, to lugnet.robotics.handyboard)
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| | Wheel Shaft Encoders
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(...) Hello, I'm new to the Handy Board mailing list. I have been browsing through the archives and I saw the discussion regarding shaft encoders. I haven't seen anyone use the technique I've used rather well. Like the thread suggests, I've tried (...) (28 years ago, 18-Aug-96, to lugnet.robotics.handyboard)
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| | Infrared Detectors
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Hi everybody I'm looking for infrared detectors/emitters for collision avoidence on my robot. can anyone reccomend any? they only need to shoot maybe 2 feet or so, just to pick up ground-lying things the sonar might miss. any help is (...) (28 years ago, 18-Aug-96, to lugnet.robotics.handyboard)
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| | Shaft Encoders
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(...) Hello, I'm new to the Handy Board mailing list. I have been browsing through the archives and I saw the discussion regarding shaft encoders. I haven't seen anyone use the technique I've used rather well. Like the thread suggests, I've tried (...) (28 years ago, 18-Aug-96, to lugnet.robotics.handyboard)
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| | (no subject)
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unsubscribe handy board wcm@tbscc.com ---...--- Nicholas Willam McQuiston General Geek <wcm@tbscc.com> (28 years ago, 17-Aug-96, to lugnet.robotics.handyboard)
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| | POWER GLITCH msg
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for edification, Oriol reported that the problem was loading the wrong pcode... -Fred ------- Forwarded Message (28 years ago, 17-Aug-96, to lugnet.robotics.handyboard)
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| | Servo information
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Can somebody tell me the power requirements for a SANWA SRM-101 servo that I took from a RC car ? Thanks Oriol (28 years ago, 16-Aug-96, to lugnet.robotics.handyboard)
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| | RE: -POWER GLITCH- message
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(...) One possibility: make sure you have loaded pcode_hb.s19 onto the board, and *not* pcoder22.s19. I've reloaded the correct version of the IC into the HB and it looks like it works fine. Thanks again Oriol ------- End of Forwarded Message (28 years ago, 16-Aug-96, to lugnet.robotics.handyboard)
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| | Re: -POWER GLITCH- message
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One possibility: make sure you have loaded pcode_hb.s19 onto the board, and *not* pcoder22.s19. when you say "even if I don't move the HB at all after runing for a few seconds the HB usually crashes" do you mean, it crashes with the "-POWER GLITCH-" (...) (28 years ago, 16-Aug-96, to lugnet.robotics.handyboard)
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| | -POWER GLITCH- message
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The Handyboard seamed to work fine for the last few days. Sudently today I got this -POWER GLITCH- message when runing the HB with just IC loaded in it. What does it mean ??? I thought it could be a loose connection or something similar but even if (...) (28 years ago, 16-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Musings regarding Handyboard Expansion & Interfacing
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(...) Dallas 1202 for example, or other models from dallas semi. The data sheets are on their web site ((URL) from memory) There is a example of code for the stamp at: (URL) Seront, seront@seism1.ess.sunysb.edu (MIME ok) (URL) (28 years ago, 14-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Musings regarding Handyboard Expansion & Interfacing
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(...) One of them "smart sockets" (I think dallas makes 'em). Put it in under the RAM chip, no extra wiring necessary. Just some special code :-). (28 years ago, 14-Aug-96, to lugnet.robotics.handyboard)
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| | Musings regarding Handyboard Expansion & Interfacing
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Just got Aug issue of Circuit Cellar. Full of robotics goodies & interface circuits . In the meantime, following are some more of my thoughts on interfacing. ***...*** * MUSINGS ON THE SUBJECT OF HANDYBOARD INTERFACING * ***...*** * Special (...) (28 years ago, 14-Aug-96, to lugnet.robotics.handyboard)
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| | Musings regarding Handyboard Expansion & Interfacing
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***...*** * (More) * * MUSINGS ON THE SUBJECT OF HANDYBOARD INTERFACING * ***...*** * Multiplexed digital I/O * * Sharing those valuable IC and OC pins * ***...*** Expanding a "clever" handyboard I/O line (an IC or OC or PA I/O) into several (...) (28 years ago, 13-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Pulse Accumulator
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(...) How long did it work before? Have you checked the solder and socket connections of the chips in the circuit? Sometimes chips shift in their sockets and incur additional impedance in a connection, causing problems. Is your board subject to (...) (28 years ago, 12-Aug-96, to lugnet.robotics.handyboard)
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| | Pulse Accumulator
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Hello everyone, The pulse accumulator on my handyboard no longer is working. It was working fine, and then the next minute it just stopped... Can I just reaplce the HC11 to fix the problem? Thanks.. joeo@symtec.com (28 years ago, 12-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Servo question
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(...) One thing to note, not all servos are designed to turn 180degrees. The ones designated as "retract servos" are designed to turn 180 degrees, the rest are designed for something around 90degrees. Most can be modified to turn as far as you want (...) (28 years ago, 12-Aug-96, to lugnet.robotics.handyboard)
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| | Pulse Accumulator
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My Pulse Accumulator no longer works... Does anyone know how to fix it? I was using it to measure RPM, and it was working fine...the next minute it just completely stopped working... Can I just replace the HC11? Thanks.. Joeo (28 years ago, 12-Aug-96, to lugnet.robotics.handyboard)
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| | Re: piggyback pentium/powerPC
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(...) Try looking for embedded PC systems. The motherboard are sometimes roughly the size of the HB. You may have to buy controller board also to drive a hard drive or a Solid state disk. Expensive stuff! The good thing about some embedded systems (...) (28 years ago, 12-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Servo question
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(...) You need to go into the servo.c file, and adjust the minimum and maximum frequencies the servo can handle. If you open servo.c, you'll find instructions as to how to do this. You pretty much just have to adjust the program to suit your servo, (...) (28 years ago, 10-Aug-96, to lugnet.robotics.handyboard)
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| | Servo question
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hello everyone I'm playing around with a servo on the HB. i loaded all the progs and got it to twirl, but it won't do a full 180 degrees. i'm just using the servo() command. i suppose servo(1400) is supposed to point it 0degress, but it points about (...) (28 years ago, 10-Aug-96, to lugnet.robotics.handyboard)
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| | Re: bootstrap quirk
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(...) Thanks for the suggestion. Unfortunately, the behavior is the same regardless of whether the interface board is connected to my computer. (...) I believe it is working fine, as the previous tests of it were passed. I did have a problem where (...) (28 years ago, 10-Aug-96, to lugnet.robotics.handyboard)
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| | (no subject)
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More MUSINGS follow. Seeing as my job gets progressively more MANAGEMENT than TECHNICAL these days - is it really inevitable over the years?? - this software/electronic/mechanical exercise called robotics seems a good hobby to do all those things (...) (28 years ago, 9-Aug-96, to lugnet.robotics.handyboard)
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| | Re: IR transmission
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(...) Well actually, even though it's not a precision resistor, when I installed it, I grabbed a bunch of resistors and measured each one with my DMM until I found one which was between the 3.74 and 3.83 values Fred specified. To further test this, (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | How to add more IC lines?
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Hi, all It appears that the proposed expansion board will not have any additional input capture functions. I've run out of Input Capture lines on the Handyboard, so does anyone have a suggestion on which processor could best be slaved to the (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | Re: IR transmission
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(...) Did you tried to remove the resistor? I actually simply fitted the IR diode in the female header. I found that the red diode beside the header would light less if the IR diode is emitting, since those two diode are installed in parallel. The (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | Re: IR transmission
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Also... For Tx I use a high power IR LED with about a 5-10ohm resistor (I can't remember exactly) Because the carrier is 50% duty and the signal is not continuous, this is ok. If you use a lower powered IR LED and/or a higher resistor, you may find (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | Re: IR transmission
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Jeff, You are right. Several things could be wrong here. First of all the precision resistor is VERY VERY important. This controls the frequency of the carrier signal. The freq is approx 1/(RC) where R = R4 and C = C6 of the the Handyboard IR Tx (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | Re: DC10 turning
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(...) A partial solution which I found is effective in turning a tracked platform on carpet, is to run the pivot tread in the same direction as the turn tread but at a much slower rate. This worked quite well with a Radio Shack Sherman Tank, but the (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | IR transmission
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Well, in my quest for new and neat things to add to my robot, I've decided to start exploring IR transmission. I downloaded the REC80 routines, and have figured out that one of my TV/VCR/cable box remotes is compatable for the TV and VCR. It gives (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | (no subject)
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RE: Attached processors... I have considered different ways of refining PWM speed controls on the HB, and have decided to try adding another 'HC11, and use the PWM code example in the Handbook. This seems easier (and smaller) than building it from (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | Re: piggyback pentium/powerPC
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(...) Or use the 32-bit Hitachi SH7032 microcontroller. An evaluation board sells for only $100 (I bought mine from Marshall Industries). It runs at 20MHZ, has 4GB address space, DRAM circuitry, 10-bit A/D, several timers, and I forgot what else. (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | piggyback pentium/powerPC
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Already serveral ideas have been mentioned on processor upgrades. Instead of such a quantum jump, why not instead a small bunt. ie. Motorola has recently announced availability of the 68HC12. Although certainly not the screamers of a PowerPC, et.al. (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | Re: DC10 turning
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(...) That's how I've been doing it. I'm still having trouble turning. I partially solved the problem by applying some belt dressing (from my local Kragen auto parts store :-) to the treads, which helps some with the grinding I get from the drive (...) (28 years ago, 8-Aug-96, to lugnet.robotics.handyboard)
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| | Musings regarding Handyboard Expansion & Interfacing
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More "musings":- ***...*** * MUSINGS ON THE SUBJECT OF HANDYBOARD INTERFACING * ***...*** * Generating Chip Selects and Address Signals * ***...*** These are my thoughts on (re)generating some needed signals on an expansion board to allow more (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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| | RE: DC10 turning
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(...) A _long_ time ago, Dave Williams and I got into a discussion about tank treads and turning etc. I ran some experiments on a Radio Shack Sherman Tank toy I was using (the original "RoboTank" in my case) In a nutshell we proposed a mathematical (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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| | Re: piggyback pentium/powerPC
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(...) Pentium and low power can hardly be used in the same sentence. (...) If someone wants to design a piggyback 32 bit machine for the handy board, I will suggest the 68360. It is really powerful, and has all the glue logic in it for several megs (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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| | DC10 turning
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Hi Jeff (...) I had the same problem. I got some improvement by running the treads in opposite directions. Turns real quick then! And the drive tread does not have to carry the whole force of the turn plus "slip" or pivot the stationary tread. Keith (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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| | piggyback pentium/powerPC
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I realize that what I'm asking for is hardly cheap, but I'd like to piggyback some real computing power with the handy board. Can anyone suggest components for: - a small low-power pentium/powerPC with min 32MB RAM and a pair of serial (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Charging the battery
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Make sure your adapter is 12v, 500 mA. If you have a voltmeter, measure the open-circuit voltage (when it's plugged into the wall, but not operating anything); you should get around 17 v. -F (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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| | Glue/Caulk thread
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GE's Silicone 2 is an amazing adhesive when you want to mount something firmly but might want to be able to peel it off and reposition it later without damaging the surface. Again, its flexible, cures overnight (for the most part) and doesn't have (...) (28 years ago, 7-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Electronic Compass
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(...) I was the one who had the Vector-2X working with the Miniboard not using the SPI bus. I won't try and talk you out of it, it may just work for you. Make sure you get the current documentation from Precision, the original docs I got from them (...) (28 years ago, 6-Aug-96, to lugnet.robotics.handyboard)
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| | Electronic Compass
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OK, I finally got the prices for the KVH C100 and the Vector 2X electronic compasses, both referred to as low cost. The KVH is $700, the Vector 2X is $50. EASY decision, even though the Vector's accuracy isn't as good. It'll be here tomorrow. Now, (...) (28 years ago, 6-Aug-96, to lugnet.robotics.handyboard)
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| | Re: my bot
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(...) I found the best way to mount micro switches is silicon bathtub caulk. It is flexible, and strong. (28 years ago, 6-Aug-96, to lugnet.robotics.handyboard)
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| | Musings regarding Handyboard Expansion & Interfacing
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I have been playing with my Handyboard (from Digital), and am still waiting on the little mobile platform I decided to start out on. (My retired father-in-law is a mechanical creator, & is PC literate, so I am planning on getting him involved after (...) (28 years ago, 6-Aug-96, to lugnet.robotics.handyboard)
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| | Manipulator Question
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Hello, Could someone please tell me if there is a (not-so-expensive) manipulator which can be driven by HB? I'm quite interested in driving the manipulator to draw a text on a sheet of paper. Or, do I have to look for a plotter instead? I'm using (...) (28 years ago, 6-Aug-96, to lugnet.robotics.handyboard)
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| | Re: my bot
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(...) Heh, I ripped the front end off as well. Other than that, I did the exact same mods. Wow. :-) (...) I've got the sonar going - it's neat for looks, but I'm still working on putting enough code behind it to make it fast and functional - servos (...) (28 years ago, 6-Aug-96, to lugnet.robotics.handyboard)
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| | Re: jbmiller and Hammatzu IR
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Hi Patrick, I assume that you're using the stock S4282/LED setup? It is possible to get better range using a slightly different configuration. The range is largely a function of the the LEDs intensity. Since the S4282 modulates the LED at 1/16th (...) (28 years ago, 6-Aug-96, to lugnet.robotics.handyboard)
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| | Re: jbmiller and Hammatzu IR
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jbmiller wrote: I was also wondering if anyone has played with the Hammatsu IR modulator IC, which was recommended to me by Digital Micro Systems (great tech support!!). It's an IC that has all the de/modulation hardware, collector (less emitter) (...) (28 years ago, 5-Aug-96, to lugnet.robotics.handyboard)
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| | my bot
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At 12:02 PM 8/5/96 -0600, you wrote: somebody asked me what mods i did to my Cat d-10 tractor. here's what i did. if anyone else is using the D-10, which seems to be a popular platform, please post your mods and it could be a learning experience for (...) (28 years ago, 5-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Interactive C Manual
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Read the online manual and press 'SHIFT' before you click on each link. Thus downloading each as a text file. :-) (...) (28 years ago, 5-Aug-96, to lugnet.robotics.handyboard)
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| | Interactive C Manual
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Is there a Interactive C Manual for the Handy Board? I saw one but it was Post Script. I need a PDF file. I would like somthing I can download and get a hard copy of. Thank you (28 years ago, 5-Aug-96, to lugnet.robotics.handyboard)
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| | PWM Freqs
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I don't suppose anyone knows what the PWM on the HB freqs thru different ranges.... i just need the min/max (0-100) thanks again Jeff (28 years ago, 5-Aug-96, to lugnet.robotics.handyboard)
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| | Re: Polaroid Sonar, etc
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Hi Jeff, (...) There are no schematics, per se, but there are directions in the cher/.../kent directory. The following excerpt is from the readme file there. It contains the information you need to attach the ranging module to the Handy Board. Hope (...) (28 years ago, 5-Aug-96, to lugnet.robotics.handyboard)
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| | test
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could anyone send me a message... i need to test my mailer... thanks (28 years ago, 4-Aug-96, to lugnet.robotics.handyboard)
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| | Polaroid Sonar, etc
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Hello all! I've ordered the Polaroid OEM kit which should hopefully be in tommarow, and was wondering where i could find schematics for making it talk with the handy-board. I looked in the cherupahka/...../kent, which has some code, but no schems. (...) (28 years ago, 4-Aug-96, to lugnet.robotics.handyboard)
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| | Pulse Accumulator
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Hello!, Is there a way to access to pulse accumulator subsystem of the HC11 using interactive C? And if so are there connections for it (Port A7) on the Handy Board (besides connecting it right to the HC11)? I have a pulse train signal coming from (...) (28 years ago, 1-Aug-96, to lugnet.robotics.handyboard)
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| | Memory/Sampling Rate
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Hello everyone! I was wondering if there is a simple way to get more RAM on the HandyBoard...like an addition 32K? or maybe 128K? ---...--- Other question is about the sampling rate of the digital ports on the handyboard... I am getting about 335 (...) (28 years ago, 1-Aug-96, to lugnet.robotics.handyboard)
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| | Re: sonar sensors
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Hi Sriram, To answer your question succinctly, yes you can use the sonar modules on the Handy Board without the expansion board. Infact, Kent Farnsworth has written up exactly how to do it with your existing HB. Instructions, code, etc. can be found (...) (28 years ago, 31-Jul-96, to lugnet.robotics.handyboard)
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| | Re: Memory/Sampling Rate
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(...) not easily. half of the lower 32k of the 6811 address space is consumed by the '138 circuit to generate 4 digital input and 4 digital output areas. it would be possible to have some kind of data memory area making use of the signals on the exp (...) (28 years ago, 31-Jul-96, to lugnet.robotics.handyboard)
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| | re:sonar sensors
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hello everybody, iam new to this list so please bear with me if this topic has already been discussed. iam intersted in using sonar sensors to detect and avoid obstacles using IC commands. is it possible to use the handyboard without the expansion (...) (28 years ago, 31-Jul-96, to lugnet.robotics.handyboard)
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| | RE: 2-phase servos
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Everytime I typed 'servo' in my original post I meant 'stepper'. I dont know what I was thinking... sorry. (28 years ago, 31-Jul-96, to lugnet.robotics.handyboard)
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| | RE: 2-phase servos
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Two comments for Garth (and others doing this) #1) You have 2 phase, bipolar *STEPPER* motors, not "servo" motors. The difference is quite significant if you were expecting a servo motor. A stepper motor has a coils positioned around the motor shaft (...) (28 years ago, 31-Jul-96, to lugnet.robotics.handyboard)
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| | 2-phase servos
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I have two questions; The first is about a 2 phase, bipolar servo motor that I ordered from digikey. Since I have never used servos much before I was stumped when I recieved the motor and it had four wires coming out (Red, Blue, White, Orange) of (...) (28 years ago, 31-Jul-96, to lugnet.robotics.handyboard)
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| | RE: Bot vision
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(...) This sounds more like what I was thinking of. I whanted the robot to be able to capture still pictures and send them through a digital link to the host computer. The idea was to design an expansion board for the HB that captured an imageand (...) (28 years ago, 27-Jul-96, to lugnet.robotics.handyboard)
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| | RE: Bot vision
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The limits on available user ram will make this difficult at best. If you can assume a 4K byte buffer for your image, that is only 64 pixels on a side, not much to work with. There are a couple of possible solutions however. One is the "ImageWise" (...) (28 years ago, 27-Jul-96, to lugnet.robotics.handyboard)
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| | Re: Bot vision
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(...) I4m also interested in interfacing a CCD chi with the handy board. I have no previous experience with this particular component and I would appreciate any references that may help me get started. So far I just understand the basic operation (...) (28 years ago, 27-Jul-96, to lugnet.robotics.handyboard)
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| | website
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Hey, the new website is kinda neat! My two cents... :-) (28 years ago, 26-Jul-96, to lugnet.robotics.handyboard)
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| | Bot vision
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Has anyone tried using a CCD vision system with HandyBoard? If so I would like to know what you are using and how you went about it. Also, where is everyone? On vacation or something? :-) Thanks Larry ***...*** Larry Randall ***...*** If it works (...) (28 years ago, 25-Jul-96, to lugnet.robotics.handyboard)
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