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hello, I am building a handyboard, but at the moment it doesn't work. what voltage does the motorala 6811 need? grtz laurens (28 years ago, 20-Jun-96, to lugnet.robotics.handyboard)
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| | Re: photocell arrangement
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About photocells... I did this once and used some of the stuff that Rodney Brooks et al were working on with subsumption to build the ultimate "bug". It was a tiny cockroach type robot with a small FM wireless microphone strapped to its back. The (...) (28 years ago, 20-Jun-96, to lugnet.robotics.handyboard)
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| | Re: photocell arrangement
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(...) It seems as if your unwanted light is mostly going to be coming from above your bot. It also seems that the tubing that you have around the photocells has made the light detection too directional. (Is that what you want?) With the two cells on (...) (28 years ago, 19-Jun-96, to lugnet.robotics.handyboard)
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| | photocell arrangement
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I'm experimenting with photocells, and I'm looking for some feedback from anyone who's got some insight or experience with this sort of thing. Essentially, I have two photocells, both facing forward, on the left and right side of my robot. I'd like (...) (28 years ago, 19-Jun-96, to lugnet.robotics.handyboard)
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| | Re: IR output
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(...) 800 mA. Just don't short it out and you'll be fine. -Fred (28 years ago, 19-Jun-96, to lugnet.robotics.handyboard)
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| | IR output
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Can anyone tell me what the max current the IR output Darlington can handle? I need 100ma each for two high output IR emitters and I don't want to let the smoke out of the Darlington switch. Anyone? Thank you Larry ***...*** Larry Randall ***...*** (...) (28 years ago, 19-Jun-96, to lugnet.robotics.handyboard)
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| | SPI newbie question
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Forgive the newbie question, but I have an assembly program developed for the 6811 EVB that uses the SPI which I'm trying to rewrite in Interactive C for the Handyboard. However, I'm not sure if or how IC can access the SPI. I just need the SPI to (...) (28 years ago, 18-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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HELP (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Definitions of VM and Bytecodes used by Interactive C
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(...) It seems like this might be a good thing to do - create a document of all of the pcode bytecodes. Another thing that might be usefull is a document describing the serial line protocal that IC uses. I have had need for both of these in the (...) (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | docs for pcode
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(...) If you're interested in learning what the various pcodes do, or in making a new development environment which backends to the pcodes, I'd recommend looking at "pcodesim.c" in the libs directory of the IC sources. This is a fairly (...) (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | Newtonlabs web site back up
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The Newtonlabs web site (www.newtonlabs.com) is back up. Sorry for the inconvenience. -- Randy (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Definitions of VM and Bytecodes used by Interactive C
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Length: 0 (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | Re: Definitions of VM and Bytecodes used by Interactive C
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(...) Unfortunately the IC system internals are not documented. I can only suggest that you look at the source code. the pcode.asm file is fairly well-commented, but that is all i can offer. -Fred (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | problem fixed
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Once again, I've managed to fix my own problem, albeit a few hours later... :-) I figured out that gcc was accidentally calling cpp from Borland C++, instead of the one in the /bin directory. (Makes me wonder if Borland C++ is actually working, I'm (...) (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | as11_ic with win95
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Has anyone had any luck compiling asm files for IC under Win 95? When I try to run the ms-dos as11_ic.bat script in a MS-DOS window, gcc complains that: WINDPMI.386 is not properly installed. It needs to be installed to run Borland 32 bit DOS (...) (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | Re: download too big
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(...) Randy, I'm running 2.81 on a 286 DOS machine, which has been banished to the garage workshop. My wife would growl at me if I tried to move this onto her new Pentium :-). What counts in that 16K, the original ascii code including comments, or (...) (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | FW: new IC key
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Are you planning any further updates to the software? (...) (28 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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| | download too big
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Hi Mike, (...) IC should catch a download that's too big. However, the download should never be larger than about 16K, so it sounds like you've probably found a bug. Which version of IC are you currently using? -- Randy (28 years ago, 16-Jun-96, to lugnet.robotics.handyboard)
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| | How big an IC prog can HB hold?
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Hi, The files I'm downloading to the HB seem to be getting too big (or else I have another problem). Total download is 18K, including comments and all. The download stops cold after loading all the files, and never loads interrupts. The code I (...) (28 years ago, 16-Jun-96, to lugnet.robotics.handyboard)
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| | new IC key
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Here's a new key for IC betas that expires July 15th: IC 3.1 Beta Test Copy 64900-18189-63759-49334-2 Our web site went down this morning, and we don't appear to be able to reach our service provider until Monday. Since the key expires soon, I (...) (28 years ago, 16-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Dirk, I don't know enough about the SPI to help, But I would like to know how it works out for you.. I am trying to learn s much about my Handy-Board as I can. I recently figured out the Addresses for the handy board, and I found that the Digital IO (...) (28 years ago, 16-Jun-96, to lugnet.robotics.handyboard)
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| | asm code
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Hi all, I am trying to have the handy board communicate with a miniboard. I found that using peeks and pokes at the SPI port takes about 500 cycles to do a single read char, so I tried writing the communication software in assembly. In this case, (...) (28 years ago, 15-Jun-96, to lugnet.robotics.handyboard)
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| | Re: hall effect
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I've found the Hall Effect switches that All Electronics sells to be quite useful. Their part number is the HESW-2 and they are 75 cents each, or 10 for $6.50. (100 for $60.00). They are easily activated by the micro magnets that Radio Shack sells (...) (28 years ago, 15-Jun-96, to lugnet.robotics.handyboard)
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| | Re: hall effect
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Hi Ya, I'm looking at the Digi-Key catalog (also availible at (URL) and they have several flavors of rotary encoders from $3.38 (24 pulses/360 degree mechanical encoder) to $41.20 (128 pulses/360 degree optical encoder) with the cheapest optical (...) (28 years ago, 15-Jun-96, to lugnet.robotics.handyboard)
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| | Definitions of VM and Bytecodes used by Interactive C
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Does anyone know where I can get the definitions of the virtual machine and bytecodes used by Interactive C? I am thinking of creating a smalltalk-like language for the Handyboard. Any pointers you can provide will be greatly appreciated. Jun (...) (28 years ago, 15-Jun-96, to lugnet.robotics.handyboard)
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| | pcode
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Is the pcode_hb.asm available for veiwing? I don't seem to have it in my Unix files and whenever I try to view it on the Macintosh it crashes. Thanks, -Dirk (28 years ago, 14-Jun-96, to lugnet.robotics.handyboard)
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| | expansion board
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Hi all, I want to but the handyboard to control a walking robot. The walking robot needs 6 motors and these cannot be servos. I think about using stepper motors. But the handyboard is only capable of driving four. So do I need the expansion board as (...) (28 years ago, 14-Jun-96, to lugnet.robotics.handyboard)
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| | sound files to tone(freq,time); sequences?
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I'd love to use the Handyboard buzzer to repeat a short warning on my mobile robot. Has anyone developed a program which can convert a WIN95 sound file (e.g., .WAV), or ANY sound file, into the proper IC tone commands? I'm so lazy I haven't even (...) (28 years ago, 13-Jun-96, to lugnet.robotics.handyboard)
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| | Re: hall effect
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There is a wiring diagram for a typical Hall Effect sensor included in the sensors/motors notes on the web site. -F (28 years ago, 11-Jun-96, to lugnet.robotics.handyboard)
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| | hall effect
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I'm trying to stick a shaft encoder on one of the wheels of my robot. In a search for the best way to do this, my current idea is to use a hall effect sensor, as has been recommended to me in the past. I've got a couple questions... First, where (...) (28 years ago, 11-Jun-96, to lugnet.robotics.handyboard)
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| | Encoder direction ?
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I am just wondering how I can hook up my encoder, which has two outputs (one for pulses and the other one for direction), with the handy board so I can read the number of pulses and also the direction of rotation. Thanx in advance. Hachemi (28 years ago, 9-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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I have finished the H-Bridge, and to my great suprise, IT WORKS!! (party, dude!). I have drawn a schematic diagram for others who may wish to use this circuit. It is posted to cherupakha.media.mit...ze/hbridge with pics in both IFF and GIF format, (...) (28 years ago, 9-Jun-96, to lugnet.robotics.handyboard)
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| | Polaroid info
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FYI: This info is copied out of the HB e-mail archive. There's lots of good stuff in there, it's pretty easy to search as plaintext. -Fred Polaroid 119 Windsor St, Cambridge, MA 02139 tel: 617.577.4681 fax: 617.577.3213 tel: 800.225.1000 ordering (...) (28 years ago, 8-Jun-96, to lugnet.robotics.handyboard)
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| | polaroid range finders
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Where can I purchase the polaroid range finders that are occasionally discussed on this list? Mark mbolding@vision.vsrc.uab.edu (28 years ago, 7-Jun-96, to lugnet.robotics.handyboard)
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| | are you a graduating student?
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If so, please me know if your e-mail address is about to be blown away. I've noted a surge in bad addresses on the list from the .edu sites. also, this is a reminder to all that the way to unsubscribe is to find your e-mail address by clicking the (...) (28 years ago, 7-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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(...) all sensor inputs have a 47K pull-up resistor. If you remove this (by cutting the trace between the sensor input pin and the 47K resistor pack), then the analog inputs are pretty high impedence, like a meg or so. You should get the "M68HC11 (...) (28 years ago, 7-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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Hi! Would you please let me know the input impedance of the AD circuit ? Thanks in advance. hajime (28 years ago, 7-Jun-96, to lugnet.robotics.handyboard)
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| | Re: your mail
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Yes, the h-bridge circuit is very, very, very confusing. Hmm. Well it's in my robot right now, so lemme see if I can remember how it works. Ok, let's see. First, you connect both of the emitters of the PNP power transistors to +6V or whatever. (...) (28 years ago, 6-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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I'm having a little truoble with the H-Bridge described in this mailgroup. I have MOST of the circuit OK.. The power bridge itself, Diodes, etc.. I am also OK with the optocouplers to 2n2907s.. I am just a bit confused with the description if the (...) (28 years ago, 6-Jun-96, to lugnet.robotics.handyboard)
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| | Serial IO
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Yesterday I experimented with the Serial IO code in the FAQ. I have a couple of questions though. Here is the basic program that I wrote to try to understand this stuff: I wrote this into hb_lib.c: void disable_pcode_serial() /* necessary to receive (...) (28 years ago, 5-Jun-96, to lugnet.robotics.handyboard)
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