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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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