[simpits-tech] MM5451 LED Driver

Thu, 31 Oct 2002 20:44:57 +0100

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Hi All !
Any pic off this setup ?

Frank
  ----- Original Message -----=20
  From: Robert Favre=20
  To: simpits-tech@simpits.org=20
  Sent: Thursday, October 31, 2002 7:16 PM
  Subject: RE: [simpits-tech] MM5451 LED Driver

  Ok..some of your questions are answered in other emails, but I'll try =
to run down the list.

  =20

  The circuit is actually independent of Falcon, it's just connected to =
the parallel port of a PC.  The way 'my' software works, is it looks in =
shared memory to get the necessary data, so yes, you can have it running =
on a different PC, as long as you're using something like F4Mirror, and =
the circuit has to be connected to the same PC that's running my =
software.

  =20

  The software will support 2 chips for a total of 70 LEDs (each 5451 =
chip supports 35 outputs).  The way I have it written is the first chip =
uses pins 2 and 3 on the parallel port, and a second chip would use pins =
5 and 6.

  =20

   The assignments on the spreadsheet refer to the outputs of the chip =
(not the actual pins)

  =20

  I got my chips from Radio Shack online, but that was almost a year =
ago, so I don't know if they're still available there.

  =20

  I used a regular ceramic capacitor

  =20

  Bought the LEDs at the local Radio Shack (geez.I go there a LOT).the =
lower the voltage and drain the better

  =20

  Also.I've uploaded the manufacturer spec sheet to the website =
(mm5451.pdf).it gives all the gory details of how the chip works.

  =20

  Any further questions are welcome!!!

  =20

  Oh.about the gear lights.there IS a 'data' variable that can be used =
to determine if the gear is up/down or in transit, but it's not a 'light =
bit'.  The light bit is just a on or off indicator for the gearhandle.

  =20

  Rob

  =20

  -----Original Message-----
  From: simpits-tech-admin@simpits.org =
[mailto:simpits-tech-admin@simpits.org] On Behalf Of jay-anna
  Sent: Wednesday, October 30, 2002 5:21 PM
  To: simpits-tech@simpits.org
  Subject: RE: [simpits-tech] MM5451 LED Driver

  =20

  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?

  =20

  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).

  =20

  Thanks

  Jay

  =20

  =20

  "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

  =20

  No problem Mike.

  =20

  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

  =20

  Rob

  =20

  -----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

  =20

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

  =20

    -----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.

    =20

    Rob

    =20

    -----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

    =20

    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?=20

    =20

    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.

      =20

      Rob

      =20

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<DIV><FONT face=3DArial size=3D2>Hi All !</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Any pic off this setup ?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Frank</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Drfavre@syndeocorp.com =
href=3D"mailto:rfavre@syndeocorp.com">Robert=20
  Favre</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dsimpits-tech@simpits.org=20
  href=3D"mailto:simpits-tech@simpits.org">simpits-tech@simpits.org</A> =
</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Thursday, October 31, =
2002 7:16=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> RE: [simpits-tech] =
MM5451 LED=20
  Driver</DIV>
  <DIV><BR></DIV>
  <DIV class=3DSection1>
  <P class=3DMsoNormal><SPAN class=3DSpellE><FONT face=3DArial =
color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Ok<SPAN=20
  class=3DGramE>..some</SPAN></SPAN></FONT></SPAN><FONT face=3DArial =
color=3Dnavy=20
  size=3D2><SPAN style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"> of your=20
  questions are answered in other emails, but I=92ll try to run down the =

  list=85<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The circuit =
is=20
  actually independent of <SPAN class=3DGramE>Falcon,</SPAN> it=92s just =
connected=20
  to the parallel port of a PC.<SPAN style=3D"mso-spacerun: yes">&nbsp; =
</SPAN>The=20
  way =91my=92 software works, is it looks in shared memory to get the =
necessary=20
  data, so yes, you can have it running on a different PC, as long as =
you=92re=20
  using something like F4Mirror, and the circuit has to be connected to =
the same=20
  PC that=92s running my software.<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The =
software will=20
  support 2 chips for a total of 70 <SPAN class=3DSpellE>LEDs</SPAN> =
(each 5451=20
  chip supports 35 outputs).<SPAN style=3D"mso-spacerun: yes">&nbsp; =
</SPAN>The=20
  way I have it written is the first chip uses pins 2 and 3 on the =
parallel=20
  port, and a second chip would use pins 5 and =
6.<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><SPAN=20
  style=3D"mso-spacerun: yes">&nbsp;</SPAN>The assignments on the =
spreadsheet=20
  refer to the outputs of the chip (not the actual=20
  pins)<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I got my =
chips from=20
  Radio Shack online, but that was almost a year ago, so I don=92t know =
if they=92re=20
  still available there.<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I used a =
regular=20
  ceramic capacitor<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Bought the =
<SPAN=20
  class=3DSpellE>LEDs</SPAN> at the local Radio Shack (<SPAN=20
  class=3DSpellE>geez</SPAN>=85I go there a LOT)=85the lower the voltage =
and drain the=20
  better<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Also=85I=92ve uploaded=20
  the manufacturer spec sheet to the website (mm5451.pdf)=85it gives all =
the gory=20
  details of how the chip works=85<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Any further =
questions=20
  are welcome!!!<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Oh=85about =
the gear=20
  lights=85there IS a =91data=92 variable that can be used to determine =
if the gear is=20
  up/down or in transit, but it=92s not a =91light bit=92.<SPAN=20
  style=3D"mso-spacerun: yes">&nbsp; </SPAN>The light bit is just a on =
or off=20
  indicator for the <SPAN=20
  class=3DSpellE>gearhandle</SPAN>.<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Rob<o:p></o:p></SPAN></FONT></P>
  <P class=3DMsoNormal><FONT face=3DArial color=3Dnavy size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p>&nbsp;</o:p></SPAN></FONT></P>
  <P class=3DMsoNormal style=3D"MARGIN-LEFT: 0.5in"><FONT face=3DTahoma =
size=3D2><SPAN=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
  Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: bold">From:</SPAN></B>=20
  simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] =

On Behalf Of=20
 jay-anna Sent:=20
 Wednesday, October 30, 2002 5:21 PM <SPAN=20
 style=3D"FONT-WEIGHT: bold">To: =
simpits-tech@simpits.org <SPAN=20
 style=3D"FONT-WEIGHT: bold">Subject: RE: [simpits-tech] =
MM5451 LED=20
 Driver
 <o:p>&nbsp;</o:p>
 To=20
 Robert or anyone out there, could you give a brief description of how =
this=20
 circuit works and will it work on a slave machine networked to a main =
box=20
 running Falcon or must it run on a host machine running Falcon?&nbsp; =
Can it=20
 run on a slave machine with Falcon mem-reader running?&nbsp; There are =
2 chips=20
 listed on the spreadsheet, are these two different circuits?&nbsp; Do =
they=20
 need two different parallel ports? Two different computers?&nbsp; =
&nbsp;Where=20
 does one locate these chips?&nbsp; Digikey? Mouser etc?&nbsp; The pin=20
 assignments for the LEDs are not really the pin of the chip, but the =
listed=20
 outs 1-35 listed on the circuit?&nbsp; Are there any resistors that =
need to be=20
 used with these LED=92s?&nbsp; What voltage LED are the best for this=20
 circuit?&nbsp; The capacitor, can it be a generic ceramic disc =
capacitor or=20
 does it need to be tantalum, electrolytic etc.=20
 type?<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;<o:p></o:p>
 I=92m not=20
 trying to be a butt with all the questions, goodness knows my pants =
are going=20
 crazy for the fact that someone knows how to do this and is willing to =
share=20
 it with others and now one less thing I have to figure out (and would =
probably=20
 have a hard time doing it since I don=92t know anything about=20
 programming).<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Thanks<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Jay<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;<o:p></o:p>
 <DIV>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'MS Serif'">"Show =
me a man=20
 who cannot be bothered to do the little things, and I will show you a =
man who=20
 cannot be trusted&nbsp;to do the&nbsp;big ones."&nbsp; --Lawrence =
Bell,=20
 Founder Bell =
Helicopter<o:p></o:p></DIV>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
 Message----- From:=20
 simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] =

On Behalf Of Robert=20
 Favre Sent: =
Tuesday, October=20
 29, 2002 6:14 PM To:=20
 simpits-tech@simpits.org <SPAN=20
 style=3D"FONT-WEIGHT: bold">Subject: RE: [simpits-tech] =
MM5451 LED=20
 Driver<o:p></o:p>
 &nbsp;<o:p></o:p>
 No=20
 problem Mike=85<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;<o:p></o:p>
 Ok=85here=20
 we go=85I=92ve uploaded the program to the ftp server =
(Falcon2_4.zip).&nbsp; The=20
 installation instructions are fairly simple=85put the vbio.dll file =
into the=20
 \windows\system directory, click on the Falcon2_4.exe program to run. =
I=92ve=20
 also included an excel spreadsheet that lists which lights are on =
which=20
 pins.&nbsp; Questions are welcome<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Rob<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;<o:p></o:p>
 <SPAN=20
 style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
 Message----- From:=20
 simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org] =

  <B><SPAN style=3D"FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Mike=20
  Williams<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> =
Tuesday,=20
  October 29, 2002 3:23 PM<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">To:</SPAN></B>=20
  simpits-tech@simpits.org<BR><B><SPAN=20
  style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [simpits-tech] =
MM5451 LED=20
  Driver</SPAN></FONT><o:p></o:p></P>
  <P class=3DMsoNormal style=3D"MARGIN-LEFT: 1.5in"><FONT face=3D"Times =
New Roman"=20
  size=3D3><SPAN style=3D"FONT-SIZE: =
12pt">&nbsp;<o:p></o:p></SPAN></FONT></P>
  <DIV>
  <P class=3DMsoNormal style=3D"MARGIN-LEFT: 1.5in"><FONT face=3DArial =
color=3Dblue=20
  size=3D2><SPAN style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Arial">Thanks=20
  Rob, I may ask your help on this as I move forward, no heavy bugging =
though=20
  :)</SPAN></FONT><o:p></o:p></P></DIV>
  <DIV>
  <P class=3DMsoNormal style=3D"MARGIN-LEFT: 1.5in"><FONT face=3D"Times =
New Roman"=20
  size=3D3><SPAN style=3D"FONT-SIZE: =
12pt">&nbsp;<o:p></o:p></SPAN></FONT></P></DIV>
  <BLOCKQUOTE=20
  style=3D"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=3DMsoNormal=20
    style=3D"MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 1.5in; MARGIN-RIGHT: 0in; =
mso-margin-top-alt: 0in"><FONT=20
    face=3DTahoma size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
    Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">From:</SPAN></B>=20
    simpits-tech-admin@simpits.org=20
    [mailto:simpits-tech-admin@simpits.org]<B><SPAN =
style=3D"FONT-WEIGHT: bold">On=20
    Behalf Of </SPAN></B>Robert Favre<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, October 29, =
2002 5:57=20
    PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B>=20
    simpits-tech@simpits.org<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [simpits-tech] =
MM5451 LED=20
    Driver</SPAN></FONT><o:p></o:p></P>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 1.5in"><FONT face=3DArial =
color=3Dnavy=20
    size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Yup=85I=92ll put=20
    together a zip and post to the server.</SPAN></FONT><o:p></o:p></P>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 1.5in"><FONT face=3DArial =
color=3Dnavy=20
    size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT><o:p></o:p></P>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 1.5in"><FONT face=3DArial =
color=3Dnavy=20
    size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Rob</SPAN></FONT><o:p></o:p></P>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 1.5in"><FONT face=3DArial =
color=3Dnavy=20
    size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT><o:p></o:p></P>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DTahoma =
size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
    Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">From:</SPAN></B>=20
    simpits-tech-admin@simpits.org =
[mailto:simpits-tech-admin@simpits.org]=20
    <B><SPAN style=3D"FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Mike=20
    Williams<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> =
Tuesday,=20
    October 29, 2002 1:56 PM<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">To:</SPAN></B>=20
    simpits-tech@simpits.org<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [simpits-tech] =
MM5451 LED=20
    Driver</SPAN></FONT><o:p></o:p></P>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3D"Times =
New Roman"=20
    size=3D3><SPAN style=3D"FONT-SIZE: =
12pt">&nbsp;<o:p></o:p></SPAN></FONT></P>
    <DIV>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
color=3Dblue=20
    size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Arial">Rob,</SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
color=3Dblue=20
    size=3D2><SPAN style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Arial">no=20
    idea how to code, maybe I&nbsp;will have to learn some if I must, do =
you=20
    already have a program written to&nbsp;for the&nbsp;w/ 5451 to =
interface=20
    w/</SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
color=3Dblue=20
    size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">Falcon?=20
    </SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
color=3Dblue=20
    size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DTahoma =
size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">Thanks</SPAN></FONT><o:p></o:p></P></DIV>
    <DIV>
    <P class=3DMsoNormal=20
    style=3D"MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 2in; MARGIN-RIGHT: 0in; =
mso-margin-top-alt: 0in"><FONT=20
    face=3DTahoma size=3D2><SPAN=20
    style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">&nbsp;-----Original=20
    Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">From:</SPAN></B>=20
    simpits-tech-admin@simpits.org=20
    [mailto:simpits-tech-admin@simpits.org]<B><SPAN =
style=3D"FONT-WEIGHT: bold">On=20
    Behalf Of </SPAN></B>Robert Favre<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, October 29, =
2002 2:40=20
    PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B>=20
    simpits-tech@simpits.org<BR><B><SPAN=20
    style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> [simpits-tech] =
MM5451 LED=20
    Driver</SPAN></FONT><o:p></o:p></P></DIV>
    <BLOCKQUOTE=20
    style=3D"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=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
size=3D2><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">Ok folks=85I=92ve =
uploaded=20
      (circuit.jpg) the circuit diagram for the 5451 LED driver to the =
ftp=20
      site.&nbsp; In a single chip configuration, the chip connects to =
pins 2,3=20
      and 18 of the parallel printer port.&nbsp; As always, please be =
careful in=20
      working with ports on your PC.&nbsp; If anyone needs help with the =
code=20
      portion, I can only help if you=92re interested in VB.&nbsp; Also, =
my code=20
      requires the use of a 3<SUP>rd</SUP> party driver called VBIO =
(it=92s free,=20
      and I believe I have a copy somewhere as well).&nbsp; When I last =
played=20
      with the code, I was running a Win98SE PC, so I haven=92t tested =
on any=20
      other OS.</SPAN></FONT><o:p></o:p></P>
      <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
size=3D2><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT><o:p></o:p></P>
      <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
size=3D2><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">Rob</SPAN></FONT><o:p></o:p></P>
      <P class=3DMsoNormal style=3D"MARGIN-LEFT: 2in"><FONT face=3DArial =
size=3D2><SPAN=20
      style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Arial">&nbsp;</SPAN></FONT><o:p></o:p></P></BLOCKQUOTE></BLOCKQUOTE></DIV=
></BLOCKQUOTE></BODY></HTML>

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