 | | 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 (29 years ago, 7-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 (...) (29 years ago, 8-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, (...) (29 years ago, 9-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 (29 years ago, 9-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 (...) (29 years ago, 11-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 (29 years ago, 11-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 (...) (29 years ago, 13-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 (...) (29 years ago, 14-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 (29 years ago, 14-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 (...) (29 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 (...) (29 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 (...) (29 years ago, 15-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, (...) (29 years ago, 15-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 (...) (29 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 (...) (29 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 (...) (29 years ago, 16-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 (29 years ago, 16-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? (...) (29 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 (...) (29 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 (...) (29 years ago, 17-Jun-96, to lugnet.robotics.handyboard)
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