[simpits-tech] MM5451 LED Driver
simpits-tech@simpits.org
simpits-tech@simpits.org
Thu, 31 Oct 2002 13:06:18 +0000
What would one do if one wanted to use multiple LED's on
the same pinout? ie - When one LED just won't do,
perhaps as in the gear handle?
Steve
> Hi Jay,
> i use robs great driver with 2 mm5451 for a long time and hope i can give you
> the information you need to build the circuit. For the power sypply i use 6 volt
> (6v) with 200 milliampere (200ma). I run it on one machine with one parallel
> port and have around 60 diffent led (low power leds, plan leds, high itensity
> leds). I give you more information (how to coneect it and so on) at the weekend
> because i must take al olook at my circuit first, if you like i can upload
> pictures of the circuit. In the meantime you can take
> a look at the circuit in action, go the simpits member file "other - general"
> and take a look at my upload pictures ligthts, ohp,closer and lefside.jpg.
>
> volker
>
> "jay-anna" <jay-anna@mindspring.com> schrieb:
> > 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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> Thanks!