[simpits-tech] MM5451 LED Driver

Mike Williams simpits-tech@simpits.org
Wed, 30 Oct 2002 20:55:07 -0500


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Jay, thanks for asking these questions ahead of me, would have Had to ask
Rob all of these when I start the light project.
On that subject, does anyone have a good cheap source for LED's? Just spent
a bit of time browsing for some, but if any of you have already done the
legwork, it would save me some time, I am also looking for lighted
pushbuttons, square for panel and round for the 6 icp buttons, am also
looking for acceptable military type knobs to fill the gap until we can get
affordable subs for the real ones.
  -----Original Message-----
  From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org]On Behalf Of jay-anna
  Sent: Wednesday, October 30, 2002 8:21 PM
  To: simpits-tech@simpits.org
  Subject: RE: [simpits-tech] MM5451 LED Driver


  To Robert or anyone out there, could you give a brief description of how
this circuit works and will it work on a slave machine networked to a main
box running Falcon or must it run on a host machine running Falcon?  Can it
run on a slave machine with Falcon mem-reader running?  There are 2 chips
listed on the spreadsheet, are these two different circuits?  Do they need
two different parallel ports? Two different computers?   Where does one
locate these chips?  Digikey? Mouser etc?  The pin assignments for the LEDs
are not really the pin of the chip, but the listed outs 1-35 listed on the
circuit?  Are there any resistors that need to be used with these LED's?
What voltage LED are the best for this circuit?  The capacitor, can it be a
generic ceramic disc capacitor or does it need to be tantalum, electrolytic
etc. type?



  I'm not trying to be a butt with all the questions, goodness knows my
pants are going crazy for the fact that someone knows how to do this and is
willing to share it with others and now one less thing I have to figure out
(and would probably have a hard time doing it since I don't know anything
about programming).



  Thanks

  Jay





  "Show me a man who cannot be bothered to do the little things, and I will
show you a man who cannot be trusted to do the big ones."  --Lawrence Bell,
Founder Bell Helicopter

  -----Original Message-----
  From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Robert Favre
  Sent: Tuesday, October 29, 2002 6:14 PM
  To: simpits-tech@simpits.org
  Subject: RE: [simpits-tech] MM5451 LED Driver



  No problem Mike.



  Ok.here we go.I've uploaded the program to the ftp server (Falcon2_4.zip).
The installation instructions are fairly simple.put the vbio.dll file into
the \windows\system directory, click on the Falcon2_4.exe program to run. I'
ve also included an excel spreadsheet that lists which lights are on which
pins.  Questions are welcome



  Rob



  -----Original Message-----
  From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Mike Williams
  Sent: Tuesday, October 29, 2002 3:23 PM
  To: simpits-tech@simpits.org
  Subject: RE: [simpits-tech] MM5451 LED Driver



  Thanks Rob, I may ask your help on this as I move forward, no heavy
bugging though :)



    -----Original Message-----
    From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org]On Behalf Of Robert Favre
    Sent: Tuesday, October 29, 2002 5:57 PM
    To: simpits-tech@simpits.org
    Subject: RE: [simpits-tech] MM5451 LED Driver

    Yup.I'll put together a zip and post to the server.



    Rob



    -----Original Message-----
    From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org] On Behalf Of Mike Williams
    Sent: Tuesday, October 29, 2002 1:56 PM
    To: simpits-tech@simpits.org
    Subject: RE: [simpits-tech] MM5451 LED Driver



    Rob,

    no idea how to code, maybe I will have to learn some if I must, do you
already have a program written to for the w/ 5451 to interface w/

    Falcon?



    Thanks

     -----Original Message-----
    From: simpits-tech-admin@simpits.org
[mailto:simpits-tech-admin@simpits.org]On Behalf Of Robert Favre
    Sent: Tuesday, October 29, 2002 2:40 PM
    To: simpits-tech@simpits.org
    Subject: [simpits-tech] MM5451 LED Driver

      Ok folks.I've uploaded (circuit.jpg) the circuit diagram for the 5451
LED driver to the ftp site.  In a single chip configuration, the chip
connects to pins 2,3 and 18 of the parallel printer port.  As always, please
be careful in working with ports on your PC.  If anyone needs help with the
code portion, I can only help if you're interested in VB.  Also, my code
requires the use of a 3rd party driver called VBIO (it's free, and I believe
I have a copy somewhere as well).  When I last played with the code, I was
running a Win98SE PC, so I haven't tested on any other OS.



      Rob




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<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=768014701-31102002>Jay, 
thanks for asking these questions ahead of me, would have Had to ask Rob all of 
these when I start the light project.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=768014701-31102002>On 
that subject, does anyone have a good cheap source for LED's? Just spent a bit 
of time browsing for some, but if any of you have already done the legwork, it 
would save me some time, I am also looking for lighted pushbuttons, square for 
panel and round for the 6 icp buttons, am also looking for acceptable military 
type knobs to fill the gap until we can get affordable subs for the real 
ones.</SPAN></FONT></DIV>
<BLOCKQUOTE dir=ltr 
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
  <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma 
  size=2>-----Original Message-----<BR><B>From:</B> 
  simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org]<B>On 
  Behalf Of </B>jay-anna<BR><B>Sent:</B> Wednesday, October 30, 2002 8:21 
  PM<BR><B>To:</B> simpits-tech@simpits.org<BR><B>Subject:</B> RE: 
  [simpits-tech] MM5451 LED Driver<BR><BR></FONT></DIV>
  <DIV class=Section1>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">To Robert or anyone 
  out there, could you give a brief description of how this circuit works and 
  will it work on a slave machine networked to a main box running Falcon or must 
  it run on a host machine running Falcon?&nbsp; Can it run on a slave machine 
  with Falcon mem-reader running?&nbsp; There are 2 chips listed on the 
  spreadsheet, are these two different circuits?&nbsp; Do they need two 
  different parallel ports? Two different computers?&nbsp; &nbsp;Where does one 
  locate these chips?&nbsp; Digikey? Mouser etc?&nbsp; The pin assignments for 
  the LEDs are not really the pin of the chip, but the listed outs 1-35 listed 
  on the circuit?&nbsp; Are there any resistors that need to be used with these 
  LED&#8217;s?&nbsp; What voltage LED are the best for this circuit?&nbsp; The 
  capacitor, can it be a generic ceramic disc capacitor or does it need to be 
  tantalum, electrolytic etc. type?</SPAN></FONT></P>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I&#8217;m not trying to be 
  a butt with all the questions, goodness knows my pants are going crazy for the 
  fact that someone knows how to do this and is willing to share it with others 
  and now one less thing I have to figure out (and would probably have a hard 
  time doing it since I don&#8217;t know anything about 
programming).</SPAN></FONT></P>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thanks</SPAN></FONT></P>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Jay</SPAN></FONT></P>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <DIV>
  <P class=MsoNormal><STRONG><B><FONT face="MS Serif" color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'">"Show me a man 
  who cannot be bothered to do the little things, and I will show you a man who 
  cannot be trusted&nbsp;to do the&nbsp;big ones."&nbsp; 
  --</SPAN></FONT></B></STRONG><STRONG><B><FONT face="MS Serif" color=navy 
  size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'">Lawrence</SPAN></FONT></B></STRONG><STRONG><B><FONT 
  face="MS Serif" color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'"> 
  </SPAN></FONT></B></STRONG><STRONG><B><FONT face="MS Serif" color=navy 
  size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'">Bell</SPAN></FONT></B></STRONG><STRONG><B><FONT 
  face="MS Serif" color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'">, Founder 
  </SPAN></FONT></B></STRONG><STRONG><B><FONT face="MS Serif" color=navy 
  size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'">Bell</SPAN></FONT></B></STRONG><STRONG><B><FONT 
  face="MS Serif" color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'"> 
  Helicopter</SPAN></FONT></B></STRONG></P></DIV>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original 
  Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> 
  simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] 
  <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B></SPAN></FONT><FONT 
  face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Robert</SPAN></FONT><FONT 
  face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> 
  </SPAN></FONT><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Favre</SPAN></FONT><FONT 
  face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
  style="FONT-WEIGHT: bold">Sent:</SPAN></B> </SPAN></FONT><FONT face=Tahoma 
  size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Tuesday, October 29, 
  2002</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> </SPAN></FONT><FONT face=Tahoma 
  size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">6:14 
  PM</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
  style="FONT-WEIGHT: bold">To:</SPAN></B> simpits-tech@simpits.org<BR><B><SPAN 
  style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [simpits-tech] MM5451 LED 
  Driver</SPAN></FONT></P>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" 
  size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy 
  size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">No 
  problem </SPAN></FONT><FONT face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Mike</SPAN></FONT><FONT 
  face=Arial color=navy size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">&#8230;</SPAN></FONT></P>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy 
  size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy 
  size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Ok&#8230;here 
  we go&#8230;I&#8217;ve uploaded the program to the ftp server (Falcon2_4.zip).&nbsp; The 
  installation instructions are fairly simple&#8230;put the vbio.dll file into the 
  \windows\system directory, click on the Falcon2_4.exe program to run. I&#8217;ve 
  also included an excel spreadsheet that lists which lights are on which 
  pins.&nbsp; Questions are welcome</SPAN></FONT></P>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy 
  size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy 
  size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Rob</SPAN></FONT></P>
  <P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=navy 
  size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
  <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original 
  Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> 
  simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] 
  <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B></SPAN></FONT><FONT 
  face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Mike</SPAN></FONT><FONT 
  face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> 
  </SPAN></FONT><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Williams</SPAN></FONT><FONT 
  face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
  style="FONT-WEIGHT: bold">Sent:</SPAN></B> </SPAN></FONT><FONT face=Tahoma 
  size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Tuesday, October 29, 
  2002</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> </SPAN></FONT><FONT face=Tahoma 
  size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">3:23 
  PM</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
  style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
  style="FONT-WEIGHT: bold">To:</SPAN></B> simpits-tech@simpits.org<BR><B><SPAN 
  style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [simpits-tech] MM5451 LED 
  Driver</SPAN></FONT></P>
  <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face="Times New Roman" 
  size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P>
  <DIV>
  <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face=Arial color=blue 
  size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Thanks 
  </SPAN></FONT><FONT face=Arial color=blue size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Rob</SPAN></FONT><FONT 
  face=Arial color=blue size=2><SPAN 
  style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">, I may ask your help 
  on this as I move forward, no heavy bugging though :)</SPAN></FONT></P></DIV>
  <DIV>
  <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face="Times New Roman" 
  size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P></DIV>
  <BLOCKQUOTE 
  style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: blue 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
    <P class=MsoNormal 
    style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1in; MARGIN-RIGHT: 0in"><FONT 
    face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original 
    Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> 
    simpits-tech-admin@simpits.org 
    [mailto:simpits-tech-admin@simpits.org]<B><SPAN style="FONT-WEIGHT: bold">On 
    Behalf Of </SPAN></B></SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Robert</SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> 
    </SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Favre</SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
    style="FONT-WEIGHT: bold">Sent:</SPAN></B> </SPAN></FONT><FONT face=Tahoma 
    size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Tuesday, October 
    29, 2002</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> </SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">5:57 
    PM</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
    style="FONT-WEIGHT: bold">To:</SPAN></B> 
    simpits-tech@simpits.org<BR><B><SPAN 
    style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [simpits-tech] MM5451 LED 
    Driver</SPAN></FONT></P>
    <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face=Arial color=navy 
    size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Yup&#8230;I&#8217;ll put 
    together a zip and post to the server.</SPAN></FONT></P>
    <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face=Arial color=navy 
    size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
    <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face=Arial color=navy 
    size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Rob</SPAN></FONT></P>
    <P class=MsoNormal style="MARGIN-LEFT: 1in"><FONT face=Arial color=navy 
    size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
    <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original 
    Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> 
    simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] 
    <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of 
    </SPAN></B></SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Mike</SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> 
    </SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Williams</SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
    style="FONT-WEIGHT: bold">Sent:</SPAN></B> </SPAN></FONT><FONT face=Tahoma 
    size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Tuesday, October 
    29, 2002</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> </SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">1:56 
    PM</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
    style="FONT-WEIGHT: bold">To:</SPAN></B> 
    simpits-tech@simpits.org<BR><B><SPAN 
    style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [simpits-tech] MM5451 LED 
    Driver</SPAN></FONT></P>
    <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face="Times New Roman" 
    size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT>&nbsp;</P>
    <DIV>
    <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial color=blue 
    size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Rob</SPAN></FONT><FONT 
    face=Arial color=blue size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">,</SPAN></FONT></P></DIV>
    <DIV>
    <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial color=blue 
    size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">no 
    idea how to code, maybe I&nbsp;will have to learn some if I must, do you 
    already have a program written to&nbsp;for the&nbsp;w/ 5451 to interface 
    w/</SPAN></FONT></P></DIV>
    <DIV>
    <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial color=blue 
    size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Falcon? 
    </SPAN></FONT></P></DIV>
    <DIV>
    <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial color=blue 
    size=2><SPAN 
    style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P></DIV>
    <DIV>
    <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Thanks</SPAN></FONT></P></DIV>
    <DIV>
    <P class=MsoNormal 
    style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1.5in; MARGIN-RIGHT: 0in"><FONT 
    face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">&nbsp;-----Original 
    Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> 
    simpits-tech-admin@simpits.org 
    [mailto:simpits-tech-admin@simpits.org]<B><SPAN style="FONT-WEIGHT: bold">On 
    Behalf Of </SPAN></B></SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Robert</SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> 
    </SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Favre</SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
    style="FONT-WEIGHT: bold">Sent:</SPAN></B> </SPAN></FONT><FONT face=Tahoma 
    size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">Tuesday, October 
    29, 2002</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> </SPAN></FONT><FONT 
    face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">2:40 
    PM</SPAN></FONT><FONT face=Tahoma size=2><SPAN 
    style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"><BR><B><SPAN 
    style="FONT-WEIGHT: bold">To:</SPAN></B> 
    simpits-tech@simpits.org<BR><B><SPAN 
    style="FONT-WEIGHT: bold">Subject:</SPAN></B> [simpits-tech] MM5451 LED 
    Driver</SPAN></FONT></P></DIV>
    <BLOCKQUOTE 
    style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: blue 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
      <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial 
      size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Ok folks&#8230;I&#8217;ve 
      uploaded (circuit.jpg) the circuit diagram for the 5451 LED driver to the 
      ftp site.&nbsp; In a single chip configuration, the chip connects to pins 
      2,3 and 18 of the parallel printer port.&nbsp; As always, please be 
      careful in working with ports on your PC.&nbsp; If anyone needs help with 
      the code portion, I can only help if you&#8217;re interested in VB.&nbsp; Also, 
      my code requires the use of a 3<SUP>rd</SUP> party driver called VBIO 
      (it&#8217;s free, and I believe I have a copy somewhere as well).&nbsp; When I 
      last played with the code, I was running a Win98SE PC, so I haven&#8217;t tested 
      on any other OS.</SPAN></FONT></P>
      <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial 
      size=2><SPAN 
      style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P>
      <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial 
      size=2><SPAN 
      style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Rob</SPAN></FONT></P>
      <P class=MsoNormal style="MARGIN-LEFT: 1.5in"><FONT face=Arial 
      size=2><SPAN 
      style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT>&nbsp;</P></BLOCKQUOTE></BLOCKQUOTE></DIV></BLOCKQUOTE></BODY></HTML>

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