 | | Re: HandyBoard not responding
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Kalyan, During the two weeks that you didn't use your HB did you install any software that uses _any_ serial port? When I installed Windows CE Services it interfered with serial I/O. To talk to other serial devices on com1 it's necessary to disable (...) (25 years ago, 22-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard not responding
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it sounds like it's a problem with your downloader configurations -- neither of them can open the COM port. were you able to connect "Direct to COM1" with HyperTerminal when doing the Windows Serial Debug? it's odd that that would work and then the (...) (25 years ago, 22-Nov-99, to lugnet.robotics.handyboard)
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| | HandyBoard not responding
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Hi, I left the HandyBoard without power for 2 weeks ,and now I am not able to download anything to it. When I try using HBDL.exe to download pcode_hb.s19 I get the errror "Wrong port or Board mode.". I am using the 12VDC adapter connected directly (...) (25 years ago, 22-Nov-99, to lugnet.robotics.handyboard)
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| | Re: com1 port settings to download pcode.hb.s19
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I think the IRQ is not ok. ----- Original Message ----- From: lourdes Costa <loucosta@earthlink.net> To: <handyboard@media.mit.edu> Sent: Sunday, November 21, 1999 6:34 PM Subject: com1 port settings to download pcode.hb.s19 (...) trying (...) don't (...) (25 years ago, 21-Nov-99, to lugnet.robotics.handyboard)
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| | Re: com1 port settings to download pcode.hb.s19
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go to start->settings->control panel->ports and see if COM1 is available, if not then use the the com port that is listed there, if there is nothing there then there is something wrong. Also make sure any background apps aren't using the com port. (...) (25 years ago, 21-Nov-99, to lugnet.robotics.handyboard)
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| | Re: com1 port settings to download pcode.hb.s19
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did you try the Windows Serial Debug instructions, at (URL) will at least tell you if the serial port is working at all. if you don't see the "Direct to COM1" setting available in HyperTerminal, then Windows doesn't believe you have a serial port at (...) (25 years ago, 21-Nov-99, to lugnet.robotics.handyboard)
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| | com1 port settings to download pcode.hb.s19
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Hi, I am here struggling to connect the handyboard with my computer. I am trying download pcode.hb.s19 In com1 port, but i am receiving a message that it can't open the port. I think that the settings of my com1 port is wrong. They are: Band rate = (...) (25 years ago, 21-Nov-99, to lugnet.robotics.handyboard)
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| | IR detection
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hey does anybody know how an IR sensor card works? -- Dovi Poznanski dovip@post.tau.ac.il 22 Israel's st. Tel Aviv tel: 03 5229643 (25 years ago, 21-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Nicad Problems
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(...) Hi My name is Marco and I am not interested to handyboard, but I have a lot of experience with NiCd battery. Whitout more precise data and history of your NiCd cell pack, the highest probability to have a reversal in the polarity is due to a (...) (25 years ago, 20-Nov-99, to lugnet.robotics.handyboard)
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| | Nicad Problems
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Hi Ive been having problems with my batteries for my handyboard lately so I took them out to check them all. All the batteries checked out fine except for one, which had something very wrong with it - the terminals were reversed! So when I measured (...) (25 years ago, 20-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Video Transmitters
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(...) And the X-10 color camera is going for $99 (actually its $88 today) and it also includes a xmit/recieve pair that I found runs nicely off batteries. The color camera is the cool bit since it is the "lipstick" type and light enough to put on an (...) (25 years ago, 20-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HB bootstrap mode problem, LCD problem, please help
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Dr. Martin responded to your earlier post a few hours ago. Have you tried what he suggested? (...) (25 years ago, 19-Nov-99, to lugnet.robotics.handyboard)
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| | HB bootstrap mode problem, LCD problem, please help
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Hi guys, i have a problem with the HB boot strap mode. symptoms.... I tried to connect the LCD and HB with a long ribbon cable. And it worked fine , and i am trying to put this in a box and switched on the power and tried to load the pcode. But my (...) (25 years ago, 19-Nov-99, to lugnet.robotics.handyboard)
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| | [OT] speech recognition
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The December '99 issue of "Popular Electronics" has the first part of a two part article on the HM2007 speech recognition chip ... pretty cool if your robot can understand voice commands. - Nick - (25 years ago, 19-Nov-99, to lugnet.robotics.handyboard)
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| | Re: need help in trouble shooting hb bootstrap mode
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try doing the download with the LCD disconnected. use the pcode that doesn't need the LCD to work: (URL) if that works, you may have miswired or damaged the LCD. did it ever work after you made the modifications? fred In your message you said: (...) (25 years ago, 19-Nov-99, to lugnet.robotics.handyboard)
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| | need help in trouble shooting hb bootstrap mode
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Hi guys, i have a problem with the HB boot strap mode. symptoms.... I tried to connect the LCD and HB with a long ribbon cable. And it worked fine , and i am trying to put this in a box and switched on the power and tried to load the pcode. But my (...) (25 years ago, 19-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Compiling pcode for the handyboard
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Had the some prob. We had to make sure the included header files, etc. had the correct path in the sources. (...) (25 years ago, 18-Nov-99, to lugnet.robotics.handyboard)
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| | Compiling pcode for the handyboard
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I downloaded the pcode_pc environment for the PC and have been able to set up and compile it, but nothing I compile works when I download it. The included readme file did not give the compiler toggles for a standard Handyboard rev 1.2 What is meant (...) (25 years ago, 17-Nov-99, to lugnet.robotics.handyboard)
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| | LEGO sensor inputs - Basic question
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Hi, What does 'ACTIVE' mean in LEGO active sensor inputs on the Expansion board? Can I attach a LEGO light sensor ? Thanks Kalyan Kalyan Mulampaka Software Engineer e Information Services ___...___ Ph#: (770) 698 4436 (O) (678) 320 0783 (R) (25 years ago, 17-Nov-99, to lugnet.robotics.handyboard)
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| | RE: Hacking the 3com Palm
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Hi, Try the 3com palm web site (URL) in the Palm Solution Provider program to access the source code and other utilities of Palm OS. Kalyan -----Original Message----- From: Jose-Alfredo D. Esguerra [mailto:trek@wwnet.com] Sent: Wednesday, November (...) (25 years ago, 17-Nov-99, to lugnet.robotics.handyboard)
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| | Hacking the 3com Palm
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Hello, Does anyone know of a websites with some examples on hacking the Palm? Jose (25 years ago, 17-Nov-99, to lugnet.robotics.handyboard)
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| | Re: evaluate inverse cosine, sine in IC
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(...) to get a better approximation use: arcsin(x) = pi/2 - sqrt(1 - x)(a0 + a1*x + a2*x^2 + a3*x^3), where a0 = 1.5707288 a1 = -0.2121144 a2 = 0.0742610 a3 = -0.0187293 (25 years ago, 17-Nov-99, to lugnet.robotics.handyboard)
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| | Re: IRPD
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(...) [snip] Hey Nick! Heck, I'd be interested in how you made the noise rejection even better! That is the part I spent the most time on! DLC (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Charging
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Danny ... does your HB work when it is NOT connected to the serial board or the charger? - Nick - (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Connect HP 48GX
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Hi Did somebody ever try to connect the Handy-Board to a Hewlett Packard 48G or 48GX? I don't exactly know the specifications of the serial port of the 48G. But there are several serial options possible. For example the protocol can be Kermit or (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: IRPD
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Kalyan, Both Marvin Green and Dennis Clark have IRPD kits (fairly cheap) that IMO are much better than the Lynxmotion unit (I have all three). (2 URLs) you get either Marvin's or Dennis' IRPD kit, I can send you PIC source code for either board that (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: IRPD
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(...) I have a PIC based design on my web page: (URL) that will work with any micro. I have parts description and PIC source as well as a crude board layout graphic. This one is fully automated with a left/right/both sensing capability. I also have (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: IRPD
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If you check (URL) you will find IRPD's with very narrow detection zones. Those are good for many applications. If you need one with wide coverage just for obstacle avoidance, check (URL) One or the other of those sites should work for you. Gary (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Charging
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no, to do the battery run-down test, you must not have it plugged in! otherwise you'd just be powering it from the adapter, and you'd never run out of juice. so, the steps are: 1. bootload your HB with pcode_hb.s19. you should see the Interactive C (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Charging
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Okay, I'll try it. Do I need to have the DC adapter plugged in to the (...) th (...) the (...) bei (...) pow (...) off (...) a (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Charging
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Danny, Since you imply that your battery does not take any charge at all, it sounds to me as though your problem is: (1) fuse F1 is open, or (2) a cell in your battery pack is open, or (3) one of the battery wires or its associated PCB land is open. (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | IRPD
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Hi, Can somebody point me some web pages for an Infrared Proximity Detector/sensor (IRPD) for the HandyBoard? Thanks Kalyan Kalyan Mulampaka Software Engineer e Information Services ___...___ Ph#: (770) 698 4436 (O) (678) 320 0783 (R) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Charging
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ok, you have the stock adapter. like i said, sometimes the batt does get fully charged and then not enough current flows in trickle-charge to light the LED. but that's normal, so it doesn't sound like there is actually a problem. a simple way to (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Charging
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Well I bought an assembled board from Gleason Research and I've been using the DC adapter that came with the board. The charging leds light up only when the Handyboard on? Is there something special I need to do to run the board on batteries? Is (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard Charging
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do you have the recommended 12v, 500 ma DC adapter? if not, that explains it. if so, sometimes when the batt is fully charged, you don't get much in trickle charge mode and the light is off. but usually you should see the light being lit dimly. are (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | HandyBoard Charging
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In the Handyboard manual it says when charging in trickle mode you should turn the Handyboard off, however when I do try and turn the Handyboard off the charge light on the serial/charger board goes off? Is the board still being charged or is there (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | Re: evaluate inverse cosine, sine in IC
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(...) The most efficient way to do it is to use Taylor Series approximations of the functions. Decide how much precision you need, and then write functions that evaluate the first few terms in the appropriate series. Usually, a series will converge (...) (25 years ago, 16-Nov-99, to lugnet.robotics.handyboard)
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| | evaluate inverse cosine, sine in IC
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Hi, is there a way to evaluate inverse cosine and sine using IC? Thx (25 years ago, 15-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Video Transmitters
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(...) I't not that cheap, but if you want small size and low power consumption check out this 900 Mhz transmitter/receiver pair from supercircuits: (2 URLs) here's a very small camera with transmitter built in: (URL) if you want to receive on a (...) (25 years ago, 15-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Video Transmitters from JDR
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[glashan] spake unto the ether: (...) From the fancy TV receiver you describe, I'd say you wouldn't have to do anything but select NTSC mode. The kit is supposed to transmit over the range of VHF channels 3-7, but my specific kit only does 3-5 (why (...) (25 years ago, 14-Nov-99, to lugnet.robotics.handyboard)
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