 | | Re: Scrolling through the LCD messages by the knob
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Simon, This shouldn't be too difficult to create...but it could be a real waste of memory unless it is real important issue. The reason why is that you would have to save the messages in memory. You'd have to decide if you wanted to fill all the (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Scrolling through the LCD messages by the knob
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(...) Yes, and it is totally trivial to do so. I don't have my sources here at the moment, but it is roughly like this: c = readknob(); /* or whatever the cmd is for reading it */ if ( c < 64 ) { print "a"; } else if ( c < 128 ) { print "b"; } else (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | RESEND--Re: Help with Power Scheme, Please...
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I apologize for having sent the following with extra line-feeds in it; Here it is again: The main problem I see is with how you label the voltages at various points in the circuit. If you have a 12 V battery, the low voltage end is usually called (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Scrolling through the LCD messages by the knob
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Hi, i am looking for a program to use the knob for scrolling through messages. i really need this, because i have to output more than 32 chars (and there isnt enough space for a larger display ). i have read about using the knob for scrolling on the (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | UCOS
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Has anybody tried to use HB with the ucos (the real time OS developed by Jean Labrosse)? Thanks. Aldo Gentile aldo@lacapital.com.ar (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Help with Power Scheme, Please...
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The main problem I see is with how you label the voltages at various points in the circuit. If you have a 12 V battery, the low voltage end is usually called zero volts and the high voltage end is called +12 volts (although the numbers are just (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | HBL: EPROM Microcontrolers
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FROM: Cesar Mello / cmello@cpovo.net Hi friends, Sorry if this subject isn't much related to the Handy Board, but I'd like to know something about the HC11 Eprom based microcontrollers, like the MC68hc11a8p. Does it have any means of booting from (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | HBL: EPROM Microcontrolers
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FROM: Cesar Mello / cmello@cpovo.net Hi friends, Sorry if this subject isn't much related to the Handy Board, but I'd like to know something about the HC11 Eprom based microcontrollers, like the MC68hc11a8p. Does it have any means of booting from (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Mobile robot QT demo in my HP
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I have Quick Time movies of my robot going about life! visit: www.cooper.edu/~mar Background: As a Masters student I created a mobile robot using the Handy Board. Many of you may remeber me bugging you with questions. :) Well, that all payed off and (...) (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | CD-ROM used as Audio CD player
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Hi, I'd like to control an IDE or SCSI CD-ROM with my HB in order to play audio CDs (ff, rew, shuffle etc.). Did anybody do that before? I'll appreciate any hint! Best regards, Alf (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Clearing the LCD
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I've always used printf("\n\n"); hope it helps! --philsky (26 years ago, 15-Jan-99, to lugnet.robotics.handyboard)
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| | Help with Power Scheme, Please...
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Hi Everybody, I'm trying to hook-up the Handy Board, an R/C car chassis, and a wireless camera together, and here's what I was planning to do about the power... +---...---+ +---...---| Handy Board +------+ | +12v +----+-----+----+ | | +---...---+ | (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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Try here: (URL) luck, - - - Nick - - - (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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(...) I don't know of a supplier for the SN754410, but the originally specified L239D is readily available from: Maplins (code No. AH80B) for 3.99 UKP inc VAT, or Farnell (code No. 699809) for 5.04 UKP + VAT Both of these companies have UK websites. (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Clearing the LCD
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Hi everyone, Quick question! What's the IC command to clear the LCD? Thanks for the help in advance. Bill Denzel Senior Mechatronics Student California Polytechnic State University San Luis Obispo (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | FingerBoard Users?
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I want to add a minimal board as a slave to my HandyBoard. My choices seem to be the FingerBoard, MiniBoard, and BOTBoard. At this point the FingerBoard is my first choice. Is there anyone here who has used this board? Any comments? Pros and cons of (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: Help with cables
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milind, To check your phone cord, hold the ends together so that the wires are away from each other. Look through the clear connector. The wire colors should line up in this orientation. There is a little more to the DB-25 issue. "Null modem" vs. (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | assembling the pcode
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hi i've recently modified the pcode.asm file to make the timer interrupt occur at 2KHz, rather than 1KHz. does anyone know how i'm supposed to assemble/compile this pcode.asm file into the pcode_hb.s19 file that will be loaded into the Handyboard? (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Re: TI SN754410
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(...) If you can't find the TI chip try doubling up on the L293D by piggybacking them on top of each other for added amps. You can use one L293D with an additional L293 on top of it (the 'D' has protection diodes that you MUST have). You may need to (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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| | Help
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thank you for the apt and quick reply. if you could tell us what is the difference between a straight through cable and a null modem cable it would be great( we are using a 25 female to 25 female connector) and how to identify the difference between (...) (26 years ago, 14-Jan-99, to lugnet.robotics.handyboard)
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