 | | Re: Servos w/ the handyboard?
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(...) Yes. Just use the "servo.icb" and "servo.c" libraries that are distributed with Interactive C. This will convert the Handy Board's digital input 9 sensor (which is really a bidirectional counter/timer pin) into a stable servo control line. You (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | address for RWI
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Try "jadietsch@activmedia.com" or "bkennedy@activmedia.com" -- Randy (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Motor control
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(...) <snip> (...) It would make more sense to just use motor(1,speed*14) This would give you the following: Value --> Speed 0 --> 0 1 --> 14 2 --> 28 3 --> 42 4 --> 56 5 --> 70 6 --> 84 7 --> 98 I wouldn't bother rewriting the routine. Tom (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Motor control
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(...) Depends on how far you wish IC to go. Someday there could be another controller that allows 100 disrete levels. On the other hand that could be handled well by allowing the value to go to 100, and the code written to go to 8 would be kinda (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Motor control
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I like 0 to 8 better. Also is there any way to control the frequency at which the PWM works? I find that some of my motors deliver too much at step 1. How about if there was something like: motor( motornum, cycles_on, total_cyles); if you feed (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | speed control encapsulation
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(...) This is the reason I remember for encapsulating the value. It wouldn't be hard to implement new speed control for the 6811 either which could do better than 9 divisions. One option is to leave the encapuslated interface, but make more (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Resets
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(...) Well that would do it---it would discharge your battery. You actually should be getting more like 9.6 to 10v from a fully charged battery. Why don't you get an adatper that works and charge your battery until it's slightly warm and then see if (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | RE: Motor control
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Well if you believe in encapsulation it should be 0 to 100.0 %, then the implementation of the motor speed control could give its best effort in that regard. One of the things I hope to do on my Handyboard is set it up to run two of my PIC motor (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Resets
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Actually, when I first tried the new motors, I was able to use them for a while. It wasn't until I went to download a different program that it started happening. That's what's confusing me. Is it possible that the L293D is burned or something like (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Expansion Board
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Dear Luc, Thank you for your feedback regarding the Expansion Board. (Other users out there---what's going on?) To answer some of your questions: (...) you can try requesting a sample from maxim directly. They even let you do it from their web site: (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Motor speed question (premature)
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Hi, Sorry for my earlier question about the motor speed table. It was a bit premature. After boning up on PWM I found that the values selected represented the "fine" (i.e. less jerky) settings. There can be as many as 16 different steps that can be (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Resets
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Is it possible that your battery is simply discharged? Does the board exhibit the problem when you try driving the previous motors that did not give you a problem? Regarding the charge light on the serial board, are you sure that the charge rate (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Resets
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Hi. My board was working fine until I hooked up some different motors to it today. It seems that whenever I try to drive the motors the low battery light lights up and the board gets reset. I checked the battery and it reads 8.4V before and while (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | IC 3.1b1 under Windows 3.1
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Hi Jeff, Thanks for your help. To our knowledge, no one has successfully run IC 3.1b1 under Windows 3.1 with using the win32s extension. We will look into what it will take to make future releases win32s-compatible, but for now, we apologize that (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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| | Re:Motor speed table question
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(...) Sure, why not? The way the motor speed table works is that the number is bit shifted out to the motor. Each bit gets the same ammount of time. So if you don't want your motor to move, then you bit shift all zeros. If you want it to run at a (...) (29 years ago, 17-Mar-96, to lugnet.robotics.handyboard)
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| | Motor speed table question
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Can anyone explain why the values in the _speed_table were chosen. int _speed_table[]= { 0b00000000, /* speed 0 */ 0b00010001, 0b01001001, 0b01010101, 0b01010111, 0b01110111, 0b01111111, 0b11111111 /* speed 7 */ }; Can they be change to a linear (...) (29 years ago, 17-Mar-96, to lugnet.robotics.handyboard)
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| | unarchiving problems w/IC 3.1 for Win 95
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I just tried unarchiving IC 3.1 on my 486 at home, running Win 3.1, and Win 32s 1.25.141.0 (or so the win32s.ini file says). I'm having the same problem I had before, where all of the files have an "Inflating: ...." message in front of them. My (...) (29 years ago, 17-Mar-96, to lugnet.robotics.handyboard)
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| | Re: strange IC files?
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i think it would be good if beta users cc'ed their bugs along the handyboard list--I am interested in hearing how it's working but don't have time to bang on it directly. Perhaps others feel the same way. -Fred (29 years ago, 17-Mar-96, to lugnet.robotics.handyboard)
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| | Re: strange IC files?
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(...) I've tried unarchiving the program a couple times, on a couple different machines, which had a couple different copies of IC, with the same results. I'll try it on the PC I have at home, which I haven't gotten around to doing yet. I'm also not (...) (29 years ago, 17-Mar-96, to lugnet.robotics.handyboard)
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| | Re: strange IC files?
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(...) I just double-checked and downloaded IC 3.1 for Windows from our site, and had no such problem de-archiving it. All the files were fine, and IC runs fine straight out of the zip, at least on a Windows 95 machine. Has anyone else seen this (...) (29 years ago, 16-Mar-96, to lugnet.robotics.handyboard)
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