 | | Muscle Wire
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Hi - Has anyone ever tried using "muscle wire" (nitinol) with the Handyboard? When you pass an electirc current through it, it heats up and rapidly contracts. The wire has a fairly low resistance - would it still be OK to drive it with the motor (...) (27 years ago, 18-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Lcd
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(...) there are 3 kinds of backlighting * LED * electro-luminescent (EL) * cold cathode florescent tube LED and EL are thin panels behind the LCD glass (tho they do add thickness to the final unit). florescent is miniature lamps that go along one or (...) (27 years ago, 18-Aug-97, to lugnet.robotics.handyboard)
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| | Re: Lcd
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The backlit LCD uses lamp behind the display instead of the reflective light. U may check with the following LCD FAQs. All of these introduce you the technology used, pinouts, and programming of LCD. (URL) it helps. Patrick --00---...--- Low cost (...) (27 years ago, 18-Aug-97, to lugnet.robotics.handyboard)
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| | Lcd
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Can anyone tell me the relevent information for choosing an LCD?I want to change mine for a backlit one and would like to make as few modifications as possible so I think I need to know pin outs(is that all?) and I may have to supply an extra +5v (...) (27 years ago, 18-Aug-97, to lugnet.robotics.handyboard)
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| | H-bridge stuff on-line
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I've created a MOSFET version of my H-bridge that is pretty general purpose and with the addition of a small mezzanine board becomes an electronic speed control. There is a web page that describes the PIC servo code at: : (URL) above paper describes (...) (27 years ago, 17-Aug-97, to lugnet.robotics.handyboard)
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| | IR Transmitter
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Hi all, I was wondering if anyone could recommend an IR transmitter for use with the Handy Board's IR output (J7). If possible indicate manufacturer/part no. or supplier/catalog no. if possible. I was also wondering if anyone could tell me how (or (...) (27 years ago, 17-Aug-97, to lugnet.robotics.handyboard)
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| | Re: positioning of robot
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First, my appologies that this posting is off the mailing list's intended topic (the HandyBoard) but as it seems to be drawing a lot of interest I am hoping that continuing it is ok with everyone?) (...) Ok- first a disclaimer - I am not an (...) (27 years ago, 16-Aug-97, to lugnet.robotics.handyboard)
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| | Re: positioning of robot
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I had some questions regarding John Whitten's recent posting about different drive types. (...) How is the math to figure out the narrowest space a vehicle can turn around in done? (What formula -- or formulas -- are used? Don't just give names, (...) (27 years ago, 16-Aug-97, to lugnet.robotics.handyboard)
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| | thanks
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As I just hooked up my Vector 2x compass to my handyboard and it worked the first time, just like my sonar did, I just want to say, thank you all very much for all of the help everyone gives. Thanks -Jim (URL) (27 years ago, 15-Aug-97, to lugnet.robotics.handyboard)
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| | Re: positioning of robot
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I missed the first posting, I liked the summary posted by John Whitten. Youcan take his posting one layer "up" to get at the abstractions if you want. These are: 1. Points of contact with the surface - More increases stability. 2. Drive Train (...) (27 years ago, 15-Aug-97, to lugnet.robotics.handyboard)
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