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Hi all! I was reading the book mobile robots, by Jones & Flynn, and read about how a port can be used fo tellecommunications between 68hc11aifn's (and others, I assume, in the 68hc11 series). Has anyone tinkered around with this, either with the HB (...) (27 years ago, 25-Apr-97, to lugnet.robotics.handyboard)
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| | Re: hbsonar
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Check out the multiplexing circuit that I designed. It's on the HB webpage. Can't remember the URL, but you will find a link under my URL (see below) via Mouse 'Data'... I'll be happy to correspond with you on this after I've completed my finals (1 (...) (27 years ago, 25-Apr-97, to lugnet.robotics.handyboard)
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| | mc34064 for ds1233-10?
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Is it allright if I replace the ds1233-10 with an mc34064? Thank you.. Ferry Toar toar00@rad.net.id (27 years ago, 25-Apr-97, to lugnet.robotics.handyboard)
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| | Re: IC for W95
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(...) the freeware version of IC runs fine under W95 as a DOS app. Get it from the Handy Board Software Resources page: (URL) (27 years ago, 25-Apr-97, to lugnet.robotics.handyboard)
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| | IC for W95
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I was wondering if there's a freeware version of IC for windows 95. If so, how can I get it? Also, do I need any registration number? Please respond asap. I'm anxious to program my HB. Thanks, (...) (27 years ago, 25-Apr-97, to lugnet.robotics.handyboard)
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| | Re: To HB or not to HB, that is the question.
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(...) I emailed the people at Imagecraft and asked them if ICC11 works with the handy board and they said they are working with Fred Martin on it. I noticed on thier home page that they claim to have LCD driver code in a library of version 4 ICC11. (...) (27 years ago, 24-Apr-97, to lugnet.robotics.handyboard)
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| | Re: LCD & serial connection
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It is possible you have a bum 6811. I have seen 6811's with bad output address lines. this causes mirroring in the RAM as what should be multiple locations get mapped to the same byte in memory. The downloader thinks things are working because each (...) (27 years ago, 24-Apr-97, to lugnet.robotics.handyboard)
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| | LCD & serial connection
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Thanks to those of you who sent your suggestions regarding the message below. I tried it all (replacing the LCD, checking each pin on both the RAM and the octal transparent latch 74HC373 for continuity, double checking the installed parts, I even (...) (27 years ago, 24-Apr-97, to lugnet.robotics.handyboard)
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| | Re: More Power
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Since we're on the topic, I would vote for the Hitachi SH series of 32-bit RISC microcontrollers. For $99, you can get an evaluation board with 64K of RAM (with sockets for up to 256K and other provision for further expansion), and the full GNU (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | Re: motors
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Here's the motor I used so you all know not to buy it. Barber-Coleman FYQF 63310-9 12V DC If anyone has had any experience with this one or its siblings, please share your thoughts. I would be grateful for any further info. :) ---...--- ericson mar (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | Re:
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I too was there during the contest though I was not one of the participants. I would like to add that the fire-fighting contest was the very first robot event I have been to. Now I plan to go to some of the other ones this year. Now I know why quite (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | Re: To HB or not to HB, that is the question.
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(...) There is a site that has an older version of ICC11 on it for free. I don't know the legalities involved with using that program. In any case, I found it using Yahoo while looking for some other robotics stuff. The site is (URL) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | IC
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(...) We're working on a new set of drivers for motors that have twice the resolution. The main problem is that the IC drivers were designed for the 6.270 board, which uses a battery voltage of 6v. Folks want to use low-voltage motors with the 9.6v (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | ICC Multitasking...
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(...) Raj, Thanks for the reply. According to the ICC web page they have two multitasking options: ---...--- REXIS Subsumption Architecture Multitasking Executive REXIS (Real-time EXecutive for Intelligent Systems) is a multitasking executive with (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | Re: To HB or not to HB, that is the question.
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(...) For a decent and inexpensive 68HC11 ansi-C compiler you should look into ICC11 from imagecraft. I think they have a dos version for around $50 and a windows version for around $100. I used it in a project with the motorola 68HC11 evb and I was (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | Re: To HB or not to HB, that is the question.
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Another followup, there is no "right" answer either. There is no perfect processor, the reality is, no one has the best experience to build the perfect processor. Don't not build something because there isn't a right answer. Build something, add to (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | Re: To HB or not to HB, that is the question.
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I say use both. The HB is great at sensing and driving, but for heavy-duty processing, use another processor. Don't limit yourself to 8051 derivatives either. (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | RE: More Power
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Randy said, (...) This is actually something we plan on doing the second go round. I've had lots of experience with imaging in software (motion capture, finding edges, filtering, etc., etc.), and my 'bud' (as Chuck refers to him) has plenty of CCD (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | More Power
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(...) If you're looking to move up in speed and functionality, let me recommend a real 32-bit embedded processor, like the Motorola 68332. They're not expensive, and they have some quite amazing features. Most folks don't run into performance (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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| | Re: To HB or not to HB, that is the question.
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(...) I believe the answer is 'yes'. Which may sound silly but may turn out to be the answer you settle on. Tom's comments about the power of 8 bit computers is spot on. They eventually lose their ability to 'keep up' as it were, however they are so (...) (27 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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