 | | Re: Expansion Board Files
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(...) I finally got back to this ... had to go to the day job ... :) (...) ... and everything loads just fine now. Thanks Fred, for this and everything that you are doing. I'm just getting into this stuff but so far I am having a blast. -- Doug (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Problems with servo function
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Hi all, I'm new to the list, handyboards, IC, and robotics, but I'm not totally clueless so bear with me... So I got an HB from Pat Hui, and it seems to work fine. I've been able to write a program that will vary a beep tone and print variable (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: LCD screen source
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A few years back I got an Optrex DMC16249 LCD from Digikey (URL) Look for Digikey part no.73-1037-ND . I just checked there web site and they still have the same part. The Optrex LCD is a perfect fit for the HB John (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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Doug Are you using the freeware version of IC or the Newton labs version of IC. I just downloaded the latest expansion board library files and I get the following Synchronizing with board Pcode version 3.10 present on board Loading (...) (26 years ago, 3-Feb-99, to lugnet.robotics.handyboard)
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| | Motor outputs
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Dear all, I asked this question before but I might have used the wrong wordings. Here I try again. As you all know, the HB 's motor outputs give PVM, however, it gave me problems when I tried to amplify the power (both current and voltage.) Is there (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Navigation and PID ressources for Handy Board
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(...) Francois, That's right, I was trying to use the PID for a control system but I finally gave up due to the small power supply from its motor outputs. The last time I browsed the HB web I did found some articles in the mail list, maybe you can (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: 2 servos
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(...) Sure is! Check out this page on the HB web site: (URL) Will , , __@_/ \_@__ |/ | /__, o @_/ )\ ) ( \ (\/\\, ~~~...~~~ ' ` ~~~...~~~ ` ~~~...~~~ Wendy Parson, You can't say civilization isn't advancing; Will Bain, in every war they kill you in (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: what variety of 6811 can be used?
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(...) why does the 512 bytes matter? the HB has 32K of external ram. i guess if you're planning to do rom-able code development then i understand. there's very little difference between the e and a series. the port A counter/timer pins are slightly (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: what variety of 6811 can be used?
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Hi! (...) Hi Steve! I've put my hb to work yesterday, but I think I can help you a bit. The "FN" means the chip has "plcc" package, while the "P" would mean it's DIP package. The plcc is the one used in the Handy Board, as you can see the 52 pins (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | ROVER
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Dear Mr Fred Martin, I hope you remember that we in India were making a rover ,which in the end ran into some problems.We had to present the inoperational rover only for the exhibition. Now,after the exhibition we are trying to make the rover work. (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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The 2/2/99 9:25 PST download worked fine for me. No extraneous characters in any of the files. - - - Nick - - - (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | LCD screen source
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Where is the best place to order the LCD screen for building Handy Boards? I saw the part list said Hitachi, but I could not find any ordering info on their site. Does anyone have this contact info? thanks again, Michael (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: what variety of 6811 can be used?
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Steve - - - As a HandyBoard *old timer* (I've had mine for almost two months) I've found that the best source of 68HC11 info is Motorola. Their documentation is *free*. Here are 3 manuals that are a must: M68HC11RM/AD Reference Manual MC68HC11A8/D (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | 2 servos
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Hi. Is there any way to control two PWM servos (independently) from the handy board, without the expansion board? Michael (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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argh! i'm sorry for this being so painful. doug (and anyone else who downloaded before 11:27 am today), please redownload and let me know if it's finally fixed. thank you, fred In your message you said: (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | motor connectors
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I am new at this but if there are four motor ports then why is there three connectors for each? Please help i.e the row of twelve female connetors behind the motor status LED'S please help ___...___ Steve Wall Sir Sandford Fleming college (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | what variety of 6811 can be used?
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Dear Handy Board Enthusiasts: I'm new to the Handy Board (stumbled over it about two weeks ago). I understand that there are many types of 68HC11 chips--e.g., 68HC11A1FN, 68HC11A8, 68HC11 E series, and so on. I know that the 'A1FN is used in the (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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Fred, I too am having trouble with parsing of the expansion libraries. I just downloaded your new versions: lib_hb.c 2/2/99 8:15 AM hbsensor.c 2/2/99 8:20 AM Error message as follows: Synchronizing with board Pcode version 3.10 present on board (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Could I set the RS-232 adlib?
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¥D¦®: Could I set the RS-232 adlib? Could I set the serial port (RS-232) adlib to 2400(or 4800) 8 bit, no parity,and 1 stop bit. If I can,where and how to set ? thanks! (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: ROVER
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are you using 74HC04, and not plain 7404? you must use all HC type chips in the Handy Board. fred In your message you said: (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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Wowsa! It appears to be time for the periodic "how to unsubscribe" reminder. The *only* way to unsubscribe is to send mail to Fred Martin, fredm@media.mit.edu, asking to be removed. All other methods have proven in the past to be futile. Once again, (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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OK, i've tried again, this time fixing lib_hb.c and hbsensor.c. if people continue to have problems, please let me know. thanks. fred In your message you said: (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Decoding Infrared receiver
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Dear Mr Fred Martin/Friends, I have been playing with the handyboard for a while now, currently I have four handyboards. I'm working on the communication module between the handyboards using the infrared emitter and the Sharp IS1U60 infrared (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Unsubscribe
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I would like to unsubcribe from the mailing list ===...=== Osaka Densi Block 1003 Toa Payoh Industrial Park #04-1521, Singapore 319075 Tel : (65) 356-2848 Fax : (65) 356-2945 Office-Email : chuacb@osaka-densi.com.sg Personnal-Email : (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | unsubscribe
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I would like to unsubscribe the mailing list Thank you (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Expansion Board Files
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I had similar problems with lib_hb.c. Downloaded it tonight (1800 local time in California, 1 Feb 99). After removing all the "little squares" there were still about 8 or 10 errors. At each error I deleted all white space in the error's location, (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: First steps ok
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Hi! Amazing when I listened MY HandyBoard playing the Pink Panther theme!!! Again thank you very much to Fred and everybody who helped him, you really did a very great job! I was waiting for this moment for about three months! (...) I'm very glad (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Will the SN754410 support...
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if the worst-case current is 1.5A, you're probably OK -- the SN754410's have thermal protection for over-current conditions. they're rated for an amp continuous, so you're not too far out of bounds. one cause for concern is if the 1.5A measure is (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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| | Native 68HC11 C Compiler Followup
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For those who asked me for more information about the Introl Compiler and my code, I have created a web page which can be found at (URL) little background: I had originally planned to release this code back in August. However, at that time, Introl (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Will the SN754410 support...
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I am trying to determine whether the SN754410 motor drivers will support two small DC motors. (without killing the IC's or motor) Or will I need to add a power amplification circuit. The motors are rated @ 6v ?A. Test show that they pull 0.35A (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Re: Handyboard and iMac
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way back randy did have it running on NeXT, before NeXTSTEP. the unix sources are pretty clean; probably the only tricky part would be the serial line access. fred In your message you said: (...) B/Serial adapter? (...) s, so I was unable to find or (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Handyboard and iMac
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Hi all, Do you remember me asking if the HandyBoard was working on an iMac with an USB/Serial adapter? Well, all the USB/Serial adapters have been back ordered for the last 4 months, so I was unable to find or try any of them ;^(. But I bought an (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Re: infrared transceivers
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Would anyone happen to know where I can order infrared transceivers, catalogues, or stores in nyc? (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Re: HB failure
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the buzzing indicates that the LCD isn't connected right (or is dead, as you are guessing). first, please be sure that all 14 pins of the LCD are inserted properly into the LCD connector. then (if still probs), try downloading Kent Farnsworth's (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Re: First steps ok
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You are right, i was just thinking to do so. I didn't know there were so few resellers, and all so far. Thanks. Stefano. ---...--- (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Re: First steps ok
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Do anyone know who sells handyboards in Italy ? A lot of similar boards, but not the MIT's one. And these other boards are programmable directly with the code written for the handy board ? I think I 'll habve to make the porting. Lucky you who live (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | First steps ok
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Hi! I'm extremely happy today, that I could start mounting my Hand Board. The reset chips arrived and now the only thing that's missing is the lcd, but it should arrive by next Monday. I've mounted the serial comm board and it worked ok, and I've (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | unsubscribe
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<smaller><smaller>I would like to unsubscribe the mailing list Thank you <nofill> (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | hall effect sensor
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hello i use hall effect sensor to check velocity (wheel) of car test(toy) when the wheel stops,that velocity is 0 m/s,i use this value to back my car. using handy board to control it i don't know about connecting hall effect sensor on handyboard. (...) (26 years ago, 1-Feb-99, to lugnet.robotics.handyboard)
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| | Re: ** voltage dropping and current limitting**
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Dear Mike, I believe the 16 V is rms value. If you attach a capacitor across the bridge rectifier under no load condition(output terminals are open), the capacitor gets charged not to 16 V rms but to the maximum value ie Vm=16*2^0.5 which is about (...) (26 years ago, 30-Jan-99, to lugnet.robotics.handyboard)
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