 | | Re: Sonar and the handyboard
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There's a program that already does this that comes with the stuff you got from the kent directory. Check the files. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Re: ds1233-10
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(...) I bought mine from JDR: < (URL) > A search for "ds233" at JDR yielded this: Product Info PRICE ---...--- BUY DS1233 $1.79 DALLAS 5V ECONO RESET, TO-92 (-10) 1 products found! (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Sonar and the handyboard
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I just bought the Polaroid sonar unit and I need to test it. I have downloaded the sonar drivers and hookup instructions from the FTP site but I need some help. I want to write a small program that will take a sonar reading and display the distance (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Re: controlling an opto isolated motor
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(...) I've got a MOSFET h-bridge I built that uses an opto isolator and it talks to the Handyboard, I don't know if it will solve your problem but I'll tell you what I did with it. I've designed in a "Handyboard" mode. In this mode you can connect (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Re: ds1233-10
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Did you try : Insight (1-800-677-6011) supplies the Dallas Semiconductor voltage monitor (DS1233-10).? from the handyboard web page: (URL) where I got mine. jm (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Re:system time
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(...) Since the system time is already provided, creating a process which runs every millisecond to achieve this may not be in your best interest, and will probably slow things down quite a bit. I dont recall whether the system clock counts in (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | HOW TO UNSUBSCRIBE
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Please, do not send unsubscribe requests to the main Handy Board mailing list. Instead, send them to me, Fred Martin, fredm@media.mit.edu. I am the only person who can remove you from the list. Thank you for your consideration of others on the (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | re: ztx614
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If I have interpreted the schematics correctly almost any npn can be used for the ztx614. The 614 simply provides ground for the IR transmitter with a collector current of about 3ma. The base current is set by the 10k R to about (5/10k) 0.5ma. If I (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | unsubscribe
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Please unsubscribe me. ejevremo@alum.uax.es (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Re: Re:system time
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Hi Joe, Do you have the C-code that you are attempting to use and have the problem with ? Could you please post or send it to me ? I could not see any thing wrong from what you described in the mail. It is clearer to see the code. Regards, -Pandit (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Re:system time
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Pandit, As far as I know I can only read system time as along integer or floating point number(both cannot be used in conditionals).I do not know what casting is.One idea I came up with is creating process which runs for one millisecond and putting (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | Re: LCD Panel Substitute
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Bill Conroy wrote: I am having an extremely difficult time finding a source for the Hitachi 16x2 LCD panel. I am wondering what an appropriate substitute would be. I am looking at the following part from page 53 of the Mouser Electronics Purchasing (...) (28 years ago, 17-Mar-97, to lugnet.robotics.handyboard)
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| | RE: Newbie
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I suppose that if you got the HB and write in this mail list you know the HB web. Just in case get http: //el.www.media.mit.e...ndy-board. There you have the a complete guide that how assembly, check, etc.. is a file in Acrobat PDF format with more (...) (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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| | RE: Ascii to integer...
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When I make programs with IC manipulating chars or char arrays, I have used pointers and after I get the memory addresses as reference. In your case you can get the address of the char with & and the content with peek and after subtract till the (...) (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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| | RE: ztx614
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Hi this is Rick Hormigo from Southern Mississippi University, and I'm new in this list and this is my answer for the question about ZTX614. I'm foreigner, so I'm sorry for my English !!! The only one very famous darlinton for medium power that I (...) (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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| | Re: sonar help..
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There is an OEM kit which includes 2 ranging units and an instrument grade sonar transducer. Instrument grade meaning no protective enclosure. This kit has an order no. 606783 Just phone Polaroid Customer Service at 800 225 1618 and I'm sure they'll (...) (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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| | Re: sonar help..
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Sriram, It looks as though the diagram you have is correct. I should warn you that I have a sonar board in which the cable was put on backward by Polaroid manufacturing. There is a manual that you should have for the ranging unit. In the manual (pg (...) (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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| | Re: sonar help..
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where can i purchase a soner unit everyone talks about or is anyone done with thiers and would like to sell it please e-mail me with info. thank you in advance bryan wiabel offrds2@aol.com (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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| | music?
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Hi, unlike most handyboard subscribers, I am not using the handyboard for robotics, but for music: my HB is an interface between gesture sensors a macintosh based multimedia system running Opcode Max and Macromedia Director with MIDI equipment and (...) (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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| | system time
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When I try to use the system time as part of an expression in an if-else statement I get an error message while trying to download to the board.Goes something like : type <float> cannot be used in a conditional Is there any way of getting system (...) (28 years ago, 16-Mar-97, to lugnet.robotics.handyboard)
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