 | | 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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