 | | Re: robot project
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(...) Michael: You will not get your program to outrun light. The rf signal is moving at 300,000,000 m/s. If you divide the space between your antennas by 300,000,000 you will get the time difference for the rf arrival time. I believe you will find (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
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| | Re: robot project
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Mike, Don't think it's going to work. 186,000 miles per second is almost 1,000,000,000 feet per second ... so if your receiver antennas are 12 inches apart the time difference of the received pulse will be 0.001 microseconds maximum ... way too (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
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| | robot project
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Hi, I’m trying to get a robot to turn a face the owner using rf. I have one transmitter (that the owner will wear) and three receivers (set up in a triangle). We want to use the transmitter as a beacon. Then whichever receiver gets the signal first, (...) (25 years ago, 25-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Video Transmitters
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I received the X-10 cam I ordered two days ago. It arrived right on time, and is pretty impressive for less than $100 including California sales tax. Plus they sent me this gizmo that you plug into the back of your computer, with a couple of (...) (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)
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| | Re: IR Sensors
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(...) Didn't I post that to the handyboard list? I don't remember sending to the SRS. For some reason, I get alot of "user-not-found" error messages when I send an email to the handyboard mailing list. Do I have the old address? I was using (...) (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)
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| | IR unit
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I'm curious if there is any difficulty using the IS1U621/IS1U621L in place of the IS1U60. I notice they recommend an additional cap on the leads and I'm wondering if this is any problem? Regards, Jim Munro <jimmn@xnet.com> (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)
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| | Re: HandyBoard not responding
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Kalyan, The gray squares on the LCD simply mean that the HB doesn't have its pcode program loaded. So it doesn't indicate a hardware failure. With Window 2K, were you able to open "Direct to COM1" using HyperTerminal? If no, this definitely (...) (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)
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| | RE: HandyBoard not responding
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Hi, I tried to download the pcode under Windows 2000 , but I got the same error. So the problem is not with the COM port, must be something else. When I switch the handyboard on I see squares on the first line of the LCD. Thanks Kalyan -----Original (...) (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)
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| | Five hc374 Latch Selects for digital outs
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Hello everyone... I hav already connected a hc374 to Y0 of the expansion bus to get 8 digital outs, It works gr8. I need anouther 32 outputs which meens I need 4 more latch selects. Can I use Y1, Y2, Y3, Y4, and Y5 if needed? Y0 is used by (...) (25 years ago, 24-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Flame sensors?
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Hi, We had very good luck in last years Trinity College contest with some cheap IR Photo transistors. We got some DIGI-KEY QSD422QT-ND photo transistors and found they gave us very good discrimination even at 4 feet away (which was the maximum range (...) (25 years ago, 23-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Flame sensors?
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Acroname has a pyroelectric sensor that is specifically designed to sense heat sources: (URL) Will +---...---+ | ^^ <^ ^> | | / òó ó°° \ | | / =Y= U \ | | Wendy, Will, Tatoosh & Tenzing | +---...---+ I went straight from shenanigans to crimes (...) (25 years ago, 23-Nov-99, to lugnet.robotics.handyboard)
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| | Larger Display
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Hi, I need a display larger than one on the HB so it can be legible for a crowd 25 - 30 feet away. Ideally I could plug it into HB in place of the existing LCD but I can adapt if necessary. Any suggestions? TIA John (25 years ago, 23-Nov-99, to lugnet.robotics.handyboard)
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| | Re: com1 port settings to download pcode.hb.s19
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I did the test in the hyperTerminal and i couldn't get the com1 port. Do you know how can i enable this port in windows nt? (...) don't (...) don't (...) i (...) (25 years ago, 23-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Just a couple of quick questions...
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(...) Thanks Nick. Although I guess I was hoping for a more prepackaged solution... especially with regards to the LEGO plastic enclosure. Has anybody ever thought of actually making them as a commercial product? I certainly can't be the only person (...) (25 years ago, 23-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Flame sensors?
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supposedly UV sensors are capable of detecting flames well. But I simply take the Sharp infrared reflective sensors and just use the detector. -p (...) (25 years ago, 23-Nov-99, to lugnet.robotics.handyboard)
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| | Flame sensors?
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I would like to do a fire-fighting competition next semester in our LEGO class (like Trinity college, though much smaller scale). What kind of sensors are useful with the Handy Board for detecting flames? Thanks. --greg ***...*** * Greg Starr, (...) (25 years ago, 18-Nov-99, to lugnet.robotics.handyboard)
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| | Sensor to detect flame?
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I am considering doing a LEGO competition for next semester in which the robots have to find and extinguish a flame (candle, for ex.) Like the Trinity College contest, I guess. What sensors can be used to detect a flame? I always like to try to get (...) (25 years ago, 22-Nov-99, to lugnet.robotics.handyboard)
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| | Re: Just a couple of quick questions...
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Mark, The answer to both is YES. Remove the four screws from the corners of the HB and remove the board and batteries from the plastic box. Cut the battery wires and add a polarized two wire connector. Then you are able to substitute any desired (...) (25 years ago, 22-Nov-99, to lugnet.robotics.handyboard)
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| | Just a couple of quick questions...
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1) Is there a lego-ish plastic enclosure available for the handyboard (preferable expansion board capable)? 2) Is there a Li-Ion battery alternative to the NiCad batteries? Thanks (...) (25 years ago, 22-Nov-99, to lugnet.robotics.handyboard)
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| | RE: HandyBoard not responding
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Yes ,last week I installed other software which used com port , but I unstalled that software later. I will try disabling and then enabling the com port. Thanks Kalyan -----Original Message----- From: Nick Taylor [mailto:ntaylor@iname.com] Sent: (...) (25 years ago, 22-Nov-99, to lugnet.robotics.handyboard)
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| | 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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