 | | RE: JAVA and the handyboard
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There is another paper in SPIE Mobot Robots 11...I'll put that on the MIT AI ftp site when I get back from vacation (1/2/97). Willie (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Bali papers?
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(...) I noticed both the PS files had a strange character at the beginning of the first line and the last line. I wasn't able to print the files until I removed the strange chars. -- Clint (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | Re: (Polaroid quandry)
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(...) Yes, you can use the +5v regulated power bus to power the ranging module. That's all the power you need for a Polaroid US system. (...) That's 2500 mA. (through the power lines of the renging module) At least that's what the specs say. Who (...) (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | stepper motors
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Hi all, I want to control 2 stepper motors with my handyboard. I want to do microstepping for high resolution. I already have a couple of vexta unipolar(6 wire) steppers. I also have the TI Sn754410 H-bridge chips. I now understand the need for (...) (28 years ago, 20-Dec-96, to lugnet.robotics.handyboard)
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| | Bali papers?
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Has anyone had any luck in reading the PS files on Bali? My Ghostview v1.5 on HP-UX gives many errors. (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | RE: JAVA
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The IC package is quite impressive. What's the expectation of a JAVA-like language? --Jerry (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | RE: JAVA and the handyboard
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I found my info on the Bali paper: Title: The BALI Development Environment for Small Mobile Robots Author: Willie Lim, Future Minds, Inc., William Y-P. Lim, wlim@ai.mit.edu Pages: 11 Presented: Mobile Robots X Conference (SPIE Conference 2591) in (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | (Polaroid quandry)
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Kind of in a jam... Have heard conflicting advise (thaks again to everybody who bothered to give it)...My design group wants to come to a decision about powering our two Polaroid Ultrasonic tranducers.... * One set of opinions has advised that we (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Newcomer
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(...) The E variant can handle 4 IC lines and 4 OC lines, while the A must do 3 IC lines and 5 OC lines. The IC and OC lines are the way the processor handles timer-sensitive signals, such as RC signals. The Handyboard can handle up to 2 ICs and 2 (...) (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Handy Board Crash
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(...) Re-load pcode_hb.s19. If the board loses its operating program, when it starts up it runs gibberish, and the value of the motor output latch is randomized. -Fred (28 years ago, 19-Dec-96, to lugnet.robotics.handyboard)
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| | Re: Newcomer
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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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