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What have you done for your simulator today?

Started by blueskydriver, January 14, 2018, 04:01:20 AM

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sagrada737

May 06, 2022, 05:57:01 AM #1550 Last Edit: May 06, 2022, 08:42:42 AM by sagrada737
Hello Bernard,

It's a fact that we live in a world that desires instant gratification.  We all have a need for affirmation for who we are and what we do.  That's the worldly part of being human.

The real question for all of is...  Where and how do we find true peace and contentment in how we view life, within our hearts, and in the things we do?  If the answer is through others, then we truly miss the boat.  For when we depend on others, we are often disappointed, as we typically have an expectation to be recognized and have a bone tossed our way.  Truth be known, when we don't receive accolades for what we do and share with others, we tend to have our own pity party -- not feelin' the love.

However, the reality on this Forum is most represented by the sharing our love for building Flight Simulators, which for most folks, is a hobby.  That said, the nature of building anything complex, is that it is typically filled to the brim with multiple disciplines, stretching to the max the mental, physical, and financial capability of those embarking on such projects -- Sim building is no exception.

A good example of exercising capability to the MAX is Micky's FlightDeck.  What he is doing is no less than amazing, and if that were not enough, he has a heart to share it with others!  That's the true spirit of what I think this Forum is all about.

There is an old expression, "Feed your success, and starve your failures."   In the art and practice of Sim building, we enjoy a stream of little failures as we strive to come up with successful Sim solutions.  When we have come to a successful end-point, we often want to share our success with others -- be that a small Switch Module, or something more major like the acquisition of a T-38 to turn into a Sim.  On one end of that scale are the minor accomplishments, and the other extreme end are the massive projects like what you have accomplished with your 747, and now your T-38 project.  What can one say to this, except it's all good -- all worth sharing -- all worth commenting on.

So...  Hats off to your Bernard.  When it comes to Sim building, your bandwidth, aspirations, capabilities, fortitude, determination, and shear scale of your projects are way beyond what most folks on this Forum can comprehend.  It seems that whatever you do, you do it BIG!   Where most people look at a blank sheet of paper and all they see are obstacles and dilemma.  Not you!  You look at a blank sheet of paper and see your dreams -- then go and make them come true.  You are a "get it done kind of guy"!  In that regard, you are an inspiration to those here on this Forum.

I think I can speak for everyone on this Forum...  We all admire what you have accomplished with your Sim projects, and especially delight in reading your updates/photos on the T-38 Sim project.  Awesome undertaking! 

Keep up the good work!

Mike
Full-scale 737-800 Sim; P3d v4.5x with Sim-Avionics (two computers), FDS MIP,  FlightIllusion hardware.  3-Optoma ZH406ST Laser HD projectors, with 4K inputs from a single Nvidia RTX-3090 GPU, resulting in a 210 deg wrap-around display.  6dof Motion Platform using BFF 6dof motion software, driven by a Thanos Servo Controller to 6.2 KW Servos, Lever type actuators.

Garys

All I will say Bernard is that your not cooler than Elvis until those seats are recovered in Red Velvet Velour - You know what to do, now get it done  ;)

Garys

May 07, 2022, 11:18:35 AM #1552 Last Edit: May 07, 2022, 11:33:05 AM by Garys
Clocks, Finally working.
Bernard... do you know how to use photoshop?...common man, I left the door wide open for you!

RayS

May 10, 2022, 08:57:18 AM #1553 Last Edit: May 10, 2022, 11:17:42 AM by RayS
Everything works on this Avidyne EX5000 MFD except the Altitude data. Took it for a flight last night to test the LAT/LON conversion accuracy. It's spot-on.

I have a whole bunch of ARINC-429 test gear on the way to help me figure out how to get ALT data into this thing....

Ray Sotkiewicz

RayS

This is more for Bernard than anyone else... ;-)

I have always loved the lines, the curves, the graceful beauty of the T-38. She is simply a gorgeous aircraft.

"For a plane to fly well, it has to be beautiful."

--Marcel Dassault
Ray Sotkiewicz

ame

Quote from: RayS on May 10, 2022, 08:57:18 AMEverything works on this Avidyne EX5000 MFD except the Altitude data. Took it for a flight last night to test the LAT/LON conversion accuracy. It's spot-on.

I have a whole bunch of ARINC-429 test gear on the way to help me figure out how to get ALT data into this thing....


Are you taking $GPGGA? That's the only sentence containing altitude AFAIK.

RayS

May 10, 2022, 04:36:03 PM #1556 Last Edit: May 10, 2022, 04:38:07 PM by RayS
I've tried the Following:

$GPGGA,210230,3855.4487,N,09446.0071,W,1,07,1.1,370.5,M,-29.5,M,,*

$GNGGA,001043.00,4404.14036,N,12118.85961,W,1,12,0.98,1113.0,M,-21.3,M*


However I think the $GPGGA and $GNGGA is for Fixes and not for Ownship, as the Avidyne doesn't show any altitude info using $GPGGA. (It does correctly show everything else in that sentence and instead of the center target being an aircraft outline, it's just a white + sign.

I would so much rather do this through the NMEA protocol rather than ARINC429, but I think this MFD is unique in that it gets ALT/HDG data from the EXP5000 PFD, then it's processed as TAWS data in the MFD.
Ray Sotkiewicz

ame

Quote from: RayS on May 10, 2022, 04:36:03 PMI've tried the Following:

$GPGGA,210230,3855.4487,N,09446.0071,W,1,07,1.1,370.5,M,-29.5,M,,*

$GNGGA,001043.00,4404.14036,N,12118.85961,W,1,12,0.98,1113.0,M,-21.3,M*


However I think the $GPGGA and $GNGGA is for Fixes and not for Ownship, as the Avidyne doesn't show any altitude info using $GPGGA. (It does correctly show everything else in that sentence and instead of the center target being an aircraft outline, it's just a white + sign.

I would so much rather do this through the NMEA protocol rather than ARINC429, but I think this MFD is unique in that it gets ALT/HDG data from the EXP5000 PFD, then it's processed as TAWS data in the MFD.
Ok. I pasted the first example into two online parsers and got errors. Are you sure it is correctly constructed?

That aside I concur that your unit might collect altitude data from another instrument and ignore GPS altitude (because it's notoriously inaccurate).

RayS

Thanks for checking those sentences. Both of them parse and are accepted by the Avidyne without issue.

If the incoming NMEA data isn't valid the unit will report "Nav Source Data Format Error", or "Nav Data is NOT Valid!"

(Maybe that parser needs the checksum as well?)

Regardless, I'll keep experimenting with it but I suspect you are correct in that the unit won't accept altitude data from a GPS source because of the margin for error.

I ended up purchasing one of these yesterday to play around with. Seems promising.
https://www.cockpit-concept.de/catalog/product_info.php?cPath=25_41&products_id=88

I also have a few ARINC429 Arduino daughterboards based on the Holt HI-3593 transceiver chip but I haven't purchased those chips yet... Obscenely expensive...



Ray Sotkiewicz

RayS

I also have one of these: A Holt HI-3110 Gen. Purpose SPI Eval Board with an ARINC429 3593 eval board, but I haven't the foggiest idea how to use it.  ::)

Ray Sotkiewicz

ame

Quote from: RayS on May 10, 2022, 07:24:25 PMThanks for checking those sentences. Both of them parse and are accepted by the Avidyne without issue.

If the incoming NMEA data isn't valid the unit will report "Nav Source Data Format Error", or "Nav Data is NOT Valid!"

(Maybe that parser needs the checksum as well?)

Regardless, I'll keep experimenting with it but I suspect you are correct in that the unit won't accept altitude data from a GPS source because of the margin for error.



The two randomly chosen online parsers probably do expect a checksum. I'm surprised that your instrument accepts NMEA strings without them.

RayS

Quote from: ame on May 10, 2022, 10:25:59 PMThe two randomly chosen online parsers probably do expect a checksum. I'm surprised that your instrument accepts NMEA strings without them

Oh it does. I have to generate my own checksum for the sentence to be valid in the MFD.

My Arduino code to create the checksum:

byte convertToCRC(char *buff) {
  // NMEA CRC: XOR each byte with previous for all chars between '$' and '*'
  char c;
  byte i;
  byte start_with = 0;
  byte end_with = 0;
  byte crc = 0;

  for (i = 0; i < buff_len; i++) {
    c = buff;
    if(c == '$'){
      start_with = i;
    }
    if(c == '*'){
      end_with = i;
    }     
  }
  if (end_with > start_with){
    for (i = start_with+1; i < end_with; i++){ // XOR every character between '$' and '*'
      crc = crc ^ buff ;  // compute CRC
    }
  }
  else { // else if error, print a msg (to both ports)
    //Serial.println("CRC ERROR");
    //HWSERIAL1.println("CRC ERROR");
  }
  return crc;
  //based on code by Elimeléc López - July-19th-2013
}
Ray Sotkiewicz

RayS

I just read the entire Avidyne EX5000 maintenance guide and learned I can only inject ALT and OAT data through an ARINC429 port. The MFD will think is is coming from an EXP5000 unit or a Garmin variant if it's configured that way. (I can configure it as Avidyne has some secret setup menus. )

I built a small circuit tonight to convert TTL signals to ARINC429 signals but I'm afraid of actually connecting it. I really don't have a EX5000C MFD to spare... :-)
Ray Sotkiewicz

RayS

May 17, 2022, 01:32:10 PM #1563 Last Edit: May 17, 2022, 01:44:22 PM by RayS
Had to take a break from working on the ARINC429 data to the Avidyne MFD.

I'm sure everyone in this hobby is painfully aware of the Ripple Effect: One very small change can snowball into several major projects.

That's exactly what has happened with the Avidyne project.

The sim is back in the hangar undergoing a (seemingly simple and easy) MIP color change. She's moving out of the '70s paint scheme into a more updated, modern 'Blackhawk' look.

Talk about opening a can of worms!No message is associated with this attachment.No message is associated with this attachment.No message is associated with this attachment.
Ray Sotkiewicz

navymustang

What a great upgrade. The immersive effect has increased because it is what we expect the interior to look like !

Great job.
My 737-800 full-scale cockpit has been sold. Now onto my full-size military helicopter project. An AOPA member and LifeTime member of National Association of Flight Instructors. Please note that I am a self-employed professional cockpit builder that provides consulting to defense contractors and civilian schools and airlines.

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