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Old Feb 15, 2012, 10:16 AM
Registered User
Sardinia, Italy
Joined May 2009
77 Posts
Discussion
Nunchuck stand alone TX

Hi, guys.
I build this arduino super simple nunchuck r/c stand alone TX compatibile with futaba modules and based on Flytron's Lay-Z open source project.
I made it with an arduino nano , a case and some junk that i had at home.
It works fine with all the Futaba compatible module that I have except Spektrum. The strange thing is that module works if I use it on my 9c and I send the PPM signal by the trainer port
What do you think? Melih from Flytron says that probably depends on the channel count because spektrum module accepts only and entirely 8ch. I tried to increase it on the code without success...
sandro

http://www.flytron.com/pdf/layz_nunchuck_rc.zip
http://www.flytron.com/open-source-h...lus-board.html
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Old Feb 20, 2012, 05:42 AM
Registered User
Moscow, Russia
Joined Dec 2006
35 Posts
Futaba transmitters in PPM mode only have 8 channels. Spectrum modules can be understood 6,7,8 and 9 channels, look in the thread http://www.rcgroups.com/forums/showt...1147689&page=4 , maybe it depends on the firmware version of the module
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Old Feb 21, 2012, 04:51 AM
Registered User
Sardinia, Italy
Joined May 2009
77 Posts
Thank you, Yurip. I'm thinkin too that's the problem is channel count, but nothing changes after I modify code increasing channels to 8 (lay-z send default 6ch because the 6 possible controls on the nunchuck) .
Maybe I'm doing something wrong.
I'll do more tests and report here.
sandro
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Old Dec 15, 2013, 09:46 AM
Fix it till its broke!
United Kingdom, Scotland, North Ayrshire
Joined Feb 2010
737 Posts
what wires go where to use the flytron firmware with an arduino board? or do you have a photo of the underside of your pcb?
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Last edited by geofrancis; Dec 15, 2013 at 09:57 AM.
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