[simpits-tech] Synchro converter boards - Was Beta Innovations Nitro Analog board

Sat Jun 2 17:35:42 PDT 2007

>From what I have seen of this circuit and read of this chapter, it will be a
serial data input from a standard serial port.  The circuit is setup to use
a multidrop RS 485 data bus.  The data is then converted via a PIC and then
sent into the rest of the circuit where the magic happens.  You will need a
26v 400hz power to drive this board as well as your synchros.  If you have
this, great, if not, then Mike also provides a little inverter board you can
build but need +/- 24v to run.  Not a typical PS, but obtainable.  For both
of these projects you will need to source some transformers....but don't
fear, I've already done that part.

The biggest thing one will need to do is write some interface software to
get the digital data out of the sim to the serial port.  Once that's done,
the rest is soldering and watching in great anticipation.

Jay

-----Original Message-----
From: simpits-tech-bounces at simpits.org
[mailto:simpits-tech-bounces at simpits.org] On Behalf Of David C. Allen
Sent: Saturday, June 02, 2007 5:34 PM
To: Simulator Cockpit tech list
Subject: [simpits-tech] Synchro converter boards - Was Beta Innovations
Nitro Analog board

Well Jay I will be standing in Line, if there is a line forming for 
the first production run.

I need to control a total of 4 Synchro so put me down for the number 
Synchro converter boards that will do the job!

2 of the Synchro's are 26 volts 400hz and I will let you know the 
voltage of the other 2 but my guess is they are also 26 volts 400hz.

Any idea what the input will be, 0 to 5 volt like the Nitro Analog or
Digital?

David
www.737FlightSim.com

At 05:08 PM 6/2/2007 -0500, you wrote:
>As soon as I have the final version of that circuit and he gives me the
>green light, it will be drawn up as fast as I can and off to the makers.
>
>Jay
>
>-----Original Message-----
>From: simpits-tech-bounces at simpits.org
>[mailto:simpits-tech-bounces at simpits.org] On Behalf Of David C. Allen
>Sent: Saturday, June 02, 2007 4:32 PM
>To: Simulator Cockpit tech list
>Subject: Re: [simpits-tech] Beta Innovations Nitro Analog board
>
>At 03:58 PM 6/2/2007 -0500, you wrote:
> >So you are driving synchros with a  0-5v signal, did I read that
correctly?
>
>No I am waiting for Mikes book to be released and for you to start
>making the Synchro converter boards >:-} >:-} >:-} >:-}
>
> >With regards to the needle in the off position...I thought I was anal
> >retentive.  I like it.
>
>LOL
>
> >I decided to compromise on that issue with my pit
> >for the ease of which the AC motors work.  I simply scavenged the faces
and
> >needles from my real gauges along with the cans.
>
>I can understand that !
>
>David
>www.737FlightSim.com
>
>
> >Jay
> >
> >-----Original Message-----
> >From: simpits-tech-bounces at simpits.org
> >[mailto:simpits-tech-bounces at simpits.org] On Behalf Of David C. Allen
> >Sent: Saturday, June 02, 2007 11:46 AM
> >To: Simulator Cockpit tech list
> >Subject: Re: [simpits-tech] Beta Innovations Nitro Analog board
> >
> >Hi Jay
> >I converted the real instruments in "Analog.JPG" to 0 to 5vdc operation.
> >
> >There are Synchro driven instruments in the 737 and they will be
> >converted to air core with the second Nitro board.
> >
> >The main reason I wanted to use the real instruments is the fact of
> >how they respond when the aircraft is powered or when aircraft power
> >is removed.
> >
> >With Synchro driven instruments they tend to remain at the position
> >when power is removed (provided the pointer is balanced) while the
> >other styles of instruments drop to the bottom of the scale when
> >power is removed (spring meter movement). All of the instruments in
> >"Analog.JPG" drop to the bottom of the scale or center, when power is
> >removed. So when you bring a power bus on line the instruments
> >respond properly (AKA anal-retentive 737 sim builder)
> >
> >A true servo motor with position feedback (like a RC Servo) would be
> >the best match to replace the Synchro in a Synchro driven instruments
> >because it can position the motor shaft on power up and the shaft
> >stays in last commanded position when powered down.
> >
> >It would be nice to have a choice of air core Boards or RC Servo
> >boards the directly plug into the Nitro board.
> >
> >David
> >www.737FlightSim.com
> >
> >At 12:19 AM 6/2/2007 -0500, you wrote:
> > >Not to answer for David, but yes.  The air cores are really working out
> >well
> > >for Leo.
> > >
> > >I have three of my F-16 gauges converted to air core and they work
> > >wonderfully.  Leo is sending me the rest of the gauges next week
>including
> > >the one inch gauges.  These have a very tiny air core motor that I
helped
> > >him get.  Company here in the states would never call them back until I
> >just
> > >hounded them enough and got them to sell me 75 units.  Leo is about to
>buy
> > >more from me and I'm about to have to order more.  These babies are
>selling
> > >like hot cakes.  So far, just about all the round gauges for falcon are
> > >fully working.  Only ones that aren't are the ones that have no sh. Mem
> > >value, but leo is going to program his software to "fake" those values
so
> > >you will have them "working" as well.  Like for cabin pressure, we will
> > >monitor things like the canopy status and other logic to cause this
gauge
> >to
> > >"function".  Same for the Hyd gauges as well.
> > >
> > >David, good to see you having some working gauges there.  As soon as I
>get
> > >mine going, I will post up a video.
> > >
> > >I've been spending time back in the garage again with my new tool.
>Finally
> > >bought myself a metal lathe and been learning all about turning last
>couple
> > >of weeks.
> > >
> > >jay
> > >
> > >-----Original Message-----
> > >From: simpits-tech-bounces at simpits.org
> > >[mailto:simpits-tech-bounces at simpits.org] On Behalf Of Gene Buckle
> > >Sent: Saturday, June 02, 2007 12:09 AM
> > >To: Simulator Cockpit tech list
> > >Subject: Re: [simpits-tech] Beta Innovations Nitro Analog board
> > >
> > > > Hello everyone
> > > > Leo did it again with his GREAT Nitro Board. I am able to control
the
> > > > 737's analog instruments with this board.
> > > >
> > > > Some images:
> > > >
> > > > http://www.737flightsim.com/Analog/Analog.JPG
> > > >
> > > > http://www.737flightsim.com/Analog/Analog4.jpg
> > > >
> > > > http://www.737flightsim.com/Analog/Analog5.jpg
> > > >
> > > >
> > >David, have those been rebuilt using Leo's air-core motor assemblies?
> > >
> > >g.
> > >
> > >--
> > >"I'm not crazy, I'm plausibly off-nominal!"
> > >
> > >Proud owner of F-15C 80-0007
> > >http://www.f15sim.com - The only one of its kind.
> > >
> > >_______________________________________________
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