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Old Jan 04, 2010, 03:58 PM
Ugly planes do not fly
_Sergey_'s Avatar
USA, GA, Alpharetta
Joined Mar 2007
1,689 Posts
Question
Aircraft lights

I am setting lights on my new A380 (thank you, Santa!). I have few PIC controllers with the programmer to control strobes, landing lights etc. The thing is I am running out of channels on my Rx and want to automate lighting function by reading existing channels (flaps, gear, trottle) and having some "smart" logic to determine what to turn on/off and when.

Can you tell me or point to the right source to learn when different lights need to be turned on and off?

My setup is:

- Two landing lights at the wing root
- Landing/taxing light at the front gear
- Two red strobes on top and the bottom of the fuselage
- Red and green lights with white strobes by the wing tips
- White strobe at the vertical stab base at the end of the fuselage
- Two white lights to illuminate tail logo
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Old Jan 04, 2010, 11:00 PM
Registered User
USA, GA, Marietta
Joined Oct 2000
2,049 Posts
Hi Sergey,

Nose gear light on gear extension.

Wing root landing lights on switch when you feel like it.

All others on all the time.

This is how the full size planes do it.


Ric
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Old Jan 05, 2010, 12:09 AM
Ugly planes do not fly
_Sergey_'s Avatar
USA, GA, Alpharetta
Joined Mar 2007
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Thank you Ric! I can program that!
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Old Jan 06, 2010, 08:46 PM
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Joel Shreenan's Avatar
United States, GA, Flowery Branch
Joined May 2001
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Quote:
Originally Posted by _Sergey_ View Post
Thank you Ric! I can program that!
Sergy, you could also program the wing root landing lights to come on when the throttle stick is between 1% and 25%. Greater than 25% and they go off. 0% and they go off. During most of the flight they're off. Coming in for a landing and reducing the power below 25%, they come on. Post some pictures of your plane if you have a chance. -- Joel
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Old Jan 07, 2010, 01:20 PM
Ugly planes do not fly
_Sergey_'s Avatar
USA, GA, Alpharetta
Joined Mar 2007
1,689 Posts
Thank you Joel! I sort of fomalized lights function for two input channels (see attachment). The ideal way to control lights is to use three inputs: throttle, flaps and gear. Unfortunately it means 7 total I/O channels on the microcontroller chip. The chip I have has only 6 I/O channels. I adopted two inputs: flaps and gear to control 4 types of lights, which is 6 I/O channels total. The algorithm looks promising on paper. When I find time to figure out algorithm to control strobes and their combinations rest is easy.

I don't have pictures of A380 but I have video of a maiden flight. Pardon the landing, I realized runway is going to be too short only after the take off...

Video: http://www.rcgroups.com/forums/showthread.php?t=1163683
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Old Jan 07, 2010, 08:10 PM
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Joel Shreenan's Avatar
United States, GA, Flowery Branch
Joined May 2001
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Sergey, thanks for the video. The model looks really nice and you fly it very well. Since you are flying close to Mathis Airport, you should go over there on weekends because a small group of R/C'ers have been flying there for the past few months. The airport owner has been thinking about getting a club started, but I haven't heard anything about it lately. Plenty of room for takeoff and landing--the paved runway is 1800' long.
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Old Jan 07, 2010, 08:13 PM
Ugly planes do not fly
_Sergey_'s Avatar
USA, GA, Alpharetta
Joined Mar 2007
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No kidding!!! I was thinking about it but now will definitely go there and ask. Thank you VERY MUCH for the information!!!
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Old Jan 07, 2010, 10:13 PM
RIP Ric
Andy W's Avatar
Marietta, GA
Joined Jun 1999
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We used drive up to Mathis to watch the meteor showers..
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Old Nov 17, 2010, 07:42 AM
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Joel Shreenan's Avatar
United States, GA, Flowery Branch
Joined May 2001
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Excellent modeling, Sergey. And very good flying, too. Your videographer also deserves credit. Your Airbus is getting more and more realistic. It must give the drivers on the road some anxious moments.

It looks like you are getting ready to go into commercial production with your design.

Thanks for the video. -- Joel
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Old Nov 17, 2010, 10:15 PM
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USA, GA, Marietta
Joined Oct 2000
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Looks real good!!!

Ric
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