 | | Re: A few questions...
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a few notes... in the faq there is a discussion about how to measure the resistance of a motor coil, as a way of determining if it's compatible with the hb. also in the faq, is a description of a mod that will allow using a separate power supply for (...) (26 years ago, 5-Feb-99, to lugnet.robotics.handyboard)
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| | Re: A few questions...
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I bought their Robot Platform (roomy and sturdy!) which came with two gearbox motors. I, too, am using the HB w/exp. If the motors you received are the same as the ones that are used on their Platform then you will have trouble using them via the HB (...) (26 years ago, 5-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Motor outputs
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Texas Instruments is the original manufacturer for those IC's (...) (26 years ago, 5-Feb-99, to lugnet.robotics.handyboard)
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| | A few questions...
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Hello all, I have gotten both a Handy Board and an expansion board and they both appear to work. My servo problem reported earlier is no longer an issue. I plan to use the HB with two High Power gear box/motor sets I got from HVW Technologies. They (...) (26 years ago, 5-Feb-99, to lugnet.robotics.handyboard)
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| | Matrices with Interactive C?
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Does interactive C support matrices? (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Close out blank PC boards
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i would ask people to please not patronize this person, as his email is a spam. thank you, fred (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: stack pointer
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it's probably a comms problem. make sure to use full screen dos window. maybe other windows people can suggest tweaks they've used to get their machines talking to ethe board reliably? fred In your message you said: (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard Expansion Sonar Issues
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did you put the capacitor c7 (0.1uf) in the sonar board, as indicated in the directions? if not, plesae do so and let me know if this solves your problem. fred In your message you said: (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Close out blank PC boards
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I obtained the close out inventory (about 450 boards) of a custom printed circuit board manufacturer and I am offering the following sizes to others wanting to make their own printed circuits using these blank boards. 1ea 3x5 $ .45 double and single (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | RE:stack pointer
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hi fred and all, i am facing a problem with the handyboard about the stack pointer. every time i use a check on the digital and analog port on the console window, it will give me a result of stack pointer off by 65... bytes. i would like to know (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: sensors for tennis ball
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Hi all, Does anyone know how advanced is the lego mindstorms robotics kits? And how much programming can you do with them? thanks -Mike (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | RE: Handyboard Expansion Sonar Issues
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To anyone who can help: I too have contructed the HB expansion board. All i/o ports appear to work. The servo controllers appear to work well also. However, like Ranjit, I'm having Polaroid Sonar problems. I got this as a kit from Wirtz Electronics. (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Unsubscribe
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Thank's for the help !! Bye (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: NVRAM
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Dallas Semiconductor makes some static RAMs with an internal battery. One of them is the DA1230AB/Y, a 256kbit (32Kbyte) battery backed static RAM. (URL) - - - Nick - - - (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Memory erase or reset?
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Either disconnect the batteries and all sources of power or remove the memory chip.... -phil (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: R4 Resistor
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thank you! yes, 3.83k is correct. fred In your message you said: (...) ile (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Re: R4 Resistor
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"Fred G. Martin" schrieb: (...) i have had the same problem, so i havent installed the ir-circuit yet. the mistake is in "The Handy Board Technical Reference" (July 12, 1998) PDF File ... On page 46 ( i am not sure) is a Part Listing: it says : .... (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Setting the Config Register
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Greetings all! I just finished building the handyboard from a kit, and it seems to be working just fine except for the fact that I can't seem to get the config register to set to 0x0c. It is now working on the 0x0d setting, but I know this is (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: R4 Resistor
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where is this list that says 2.94K? please tell me so i can eradicate the incorrect value. to answer, yes, just use it, it affects the IR xmit frequency and nothing else. fred In your message you said: (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | NVRAM
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Hi! Here is Cesar Mello, from Brazil. I'd like to know if there is any NVRAM version of the 62256 chip, or any other solution smaller than the external batteries, or if it's possible to keep Interactive C and the user program loaded in an EPROM. (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Memory erase or reset?
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Hello, I have been loading an alternative runtime environment (not IC) onto the handy board to test it out, and I want to ensure that all of the RAM is erased before doing so. I can use the unload command in IC to delete all of the .c files, but how (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: what variety of 6811 can be used?
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Nick, Sorry, I should have posted the link but I was out of the office yesterday and could not remember where it was. Motorola has an Engineering Bulletin call "Replacing 68HC11A Series MCUs with 68HC11E Series MCUs", it can be found at: (...) -- (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | R4 Resistor
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I am almost complete with construction of my first handyboard. I used an in accurate list to order my components and have a 2.94K resistor instead of 3.83K as per the other list I have and the assembly manual. My question is; Is the resistor only (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Motor outputs
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I was wondering if anyone out there knew where to get parts for the sonar board. I have fried the two IC chips on the board, the SN28784 and TL851. Any help would be appreciated, thanks. oooo$$$...$$$oooo oo$$$...$$$o oo$$$...$$$o o$ $$ o$ o $ oo (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | HB bootstrap problem when U6 installed
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i am guessing that some of the inputs to u6 are defective, causing it to assert its outputs when it shouldn't. this could turn on the '244 input latch, driving the bus when it should not. please check that pins 1 through 6 signals are oscillating (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | sensors for tennis ball
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Hello everyone, I am wondering if anybody have done something like a sensor that can detect a tennis ball, probably 10 - 15 cm. away. If someone have done this one, kindly sent some information. I am trying to build a multi-robot, where one should (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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Doug I am using Newton Labs IC 3.2. Thinking that the reason the expansion board files were not working was that they were not compatible with Newton Labs IC, I tried to get the freeware version to work. I changed my com port settings to try to get (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Expansion board of Rug Warrior Pro
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Hi All, I am using Rug Warrior pro for my thesis work. I want to add more IR emitter and detector on my robot. Can anybody advise me regarding the expansion board and from where I can get it. Thanks in advance javaid Iqbal (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: what variety of 6811 can be used?
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Jeff - - I can't locate the App. Note. Will you please post the link. Thanks, - - - Nick - - - (...) <snip> There is an application note on moving between the (...) (26 years ago, 4-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Problems with servo function
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(...) If you're trying to use the servo.c and servo.icb that came with the Interactive C distribution, therein lies your problem. I think those routines are designed strictly for the MIT 6.270 controller board, not for the HB (if I'm wrong about (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Motor outputs
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(...) I'm not quite sure if this is what you are looking for, but if you need to run motors that are not compatible with the HB's built-in H-bridge, try one of the following: (1) If you need up to twice the current, try piggybacking more motor (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: HB bootstrap problem when U6 installed
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Originally I had problems putting my Handy Board into bootstrap mode. The problem seemed to be that we had the wrong power source, and had to keep it in zap mode for it to work properly. (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Decoding Infrared receiver
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Make sure that your modulating the transmision part with the correct frequency! When I built my handy board I tested the IR TX circuit and it gave me 57kHz instead of 40 kHz and I did use all the correct resistor capacitor values. I suggest that you (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: HB bootstrap problem when U6 installed
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I assume you've tried other HC138's, and that it's not a case of a faulty chip? fred In your message you said: (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | HB bootstrap problem when U6 installed
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One of my students is having a problem in assembling their HB: Downloading and executing IC works fine _until_ U6 is installed. After installing U6 ('138) the GRN LED doesn't quite go off when putting the board in bootstrap mode, it glows faintly. (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Unsubscribe
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I would like to unsubscribe from the mailing list. Thank you ___...___ Carol G. Rosaire III Office 713.807.0804 Sr. Systems Eng. Fax 713.558.0597 Ascend Communications, Inc. (URL) Houston, TX "Good judgment is borne from experience, and experience (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: ROVER
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Dear Mr Fred Martin, Thank you for your reply. We have used all HC chips in the handyboard. Yours sincerely, Nitin (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: what variety of 6811 can be used?
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Everyone and Fred, Just to let everyone know, Motorola is currently doing an "End of Life" buy on the 68HC11A family. I think the plan is that we will stop making them by the end of the year. We are moving all customers over to the 68HC11E family. (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Problems with servo function
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Robert J. Kelly wrote: [servo discussion snipped] (...) Mine does the same thing, displaying version IC version 3.1 on the LCD display, even with the new pcode installed. I am supecting that Newton Labs forgot to change the text display routine in (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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(...) I am using the Newton labs version 3.2. I just downloaded the newly updated files from (URL) everything loads properly now. It seems that some erroneous characters were in a few of the files, but that all are fixed now. (...) Try downloading (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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