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(...) either. some people like the e1 better because it has more flexible timer and counter lines. but the a1 has a simpler bootstrap sequence and is less likely to have compatibility problems with the host computer. (...) No, it's harder than this. (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | Newcomer
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Hello: First - thanks for all the good information that we were able to find on the handyboard web page and on the associated ftp site. My son and I have decided that we would like to build the handyboard rather than buy one ready-built. We have no (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Handy Board Crash
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(...) I'm assuming you mean the motor LED's and that they stay on and nothing shows up on the LCD. Sounds like you didn't disconnect the battery and accidently shorted it. Probably lost the contents of the RAM. Try reloading the Pcode. hope it works (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | Handy Board Crash
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Hi, I was installing another user knob beacuse the other one broke. While I was in the middle of doing it, I think I fried the board. When I start up I have an led sequence like this: green green green red does anyone know what this means, if so (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | RE: JAVA and the handyboard
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Found this about Bali after doing a web search: (URL) contains an abstract about a paper presented at an SPIE related conference. It seems to refer to using JAVA and extensions called BALI to provide a development environment for boards like the (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Interactive C sample routines
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(...) Bill: In addition to the IC Manual, check out the URL below: (URL) used these materials to get my students started. Also, see some code examples in the IC Libraries directory (that comes with IC). Check out the Chapter on Robot Programming in (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Interactive C sample routines
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Is there anyone out there that would have some IC routines that might get me started writing my own. Something for controling two motors, bump sensors, and IR sensors. Really anything that will give me a general idea of the direction I want to go (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: (senior design)
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(...) No problem. The motors are turned on, and you can forget about 'em, until you want to stop. Read sensors, do other math, and the robot will keep going. (...) Very fluid. Turns will be an issue, you will have to work that out. (...) He is (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | RE: JAVA and the handyboard
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Didn't someone (William Lim?) write a paper about BALI, a small version of JAVA, that could be used for small mobile robots? I have a reference to his paper at home, but if someone can post it to this group quicker, it might be interesting. -- Clint (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: JAVA and the handyboard
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(...) What about building an IJ (Interactive Java). You loose all the cool stuff, but then again, there isn't much for graphics on the handy board. At least you get some decoupling (object orientation), and perhaps Java is a little easier to learn (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | (senior design)
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My design team and I just recieved our Handy-Board. We plan on building an autonomous mobile robot that will run a search program and (hopefully) locate a 4" x 4" wooden(passive) block. The domain that it will search in is approx. 15' x 15'. We plan (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: JAVA and the handyboard
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(...) I believe the predecessor to Java (known as "Oak") may have been designed for embedded systems. But last time I looked, a Java Virtual Machine took 8 MB of memory, which won't exactly fit into the HC11 address space :-) Really, if you want a (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | RE: JAVA and the handyboard
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It won't fit by a wide margin. I was part of the original Java team and when it was called 'Oak' it was designed to be as compact as possible with a kernel footprint at around 100K. (fit in a single 128KB eprom) But now that it is not just for (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | testing the CPU
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i am currently assembling the board, and i am not sure where to hook up my logic probe to test the CPU. will someone please help me? thanks. -mretzlaf@isd.net (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | JAVA and the handyboard
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Has anyone looked into putting JAVA on the Handyboard? I keep hearing that JAVA was originally designed for embedded systems and I am curious if it has the ability to live within the Handyboard's resources. Thanks ---...--- Lance Keashly Glenayre (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Handy board parts
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(...) ectronics (...) Richard Hughes and Ben Wirz sells onesies of the L293D. See the "Get Your Hands on a Handy Board" page. -Fred (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: steppers - HB
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I haven't tried this on a handy board, I am using a miniboard, but I think the process is similar: not having a lot of time to figure out how to use dc motors with my miniboard (my project deadline was coming up fast) I decided to use step motors (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Handy board parts
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(...) I got the following at JDR ( (URL) ): HM62256LP-10 $4.69 DS1233 $1.79 MAX232CPE $1.89 I got what I hope is a good substitute for the IS1U60 at Radio Shack, it is their p/n 276-137 and was discussed in the book "Mobile Robots" in similar use. (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Getting started
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(...) I think that the Handy Board could be a good next step, depending on what you want to do with it. There are many similarities between the controller board discussed in "Mobile Robotics" and the Handy Board. Perhaps one of the more important (...) (28 years ago, 18-Dec-96, to lugnet.robotics.handyboard)
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| | Getting started
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Hello to all, I am a senior in High school and I would like to get into robotics. I bought "Mobile Robtics" and have read parts of it. Is the Handy Board a good place to start? I would really like to get into some AI later. Does anyone have any (...) (28 years ago, 17-Dec-96, to lugnet.robotics.handyboard)
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