"Apologies if this has already been posted, but after reading this thread I wanted to report an apparent success.
I set Fail Save on my new quad in the following way, which appears to work testing on the bench without props and watching telemetry…"
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Brad Smith
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Brad Smith's Discussions
What do you think the APM should do on fail safe
Started this discussion. Last reply by Jim White Apr 21. 174 Replies 1 Like
First this IS NOT a bashing session this is a search for answers and opinions so try to be respectful and courteous ! me personally i think the APM is capable of bringing my plane back and landing if…Continue
Tilt rotor quad with machine gun
Started this discussion. Last reply by Brad Smith Apr 25, 2012. 4 Replies 0 Likes
http://youtu.be/SNPJMk2fgJUI wonder what the FFA would think…Continue
gps showing wrong location i,m not in Africa lol
Started this discussion. Last reply by Brad Smith Feb 21, 2012. 17 Replies 0 Likes
Hi all i just got my telemetry working and for some reason now my MP is showing my plane in Africa,,i have tried going back to the USB and disconnecting the xbee,s but still will not report the…Continue
what versions of what software do i need to download to get started
Started this discussion. Last reply by Brad Smith Feb 7, 2012. 24 Replies 1 Like
Hello alli was wondering what version of the APM and Aurduino and mission planner are compatible with the traditional heli ?Continue
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Latest Activity
SaadTiwana left a comment for Brad Smith"Hi Brad,
I read your comment on a discussion about the DNT900 radio. I have got a pair and am designing a generic interface board for that. I wanted to know if you'd still be interested to get a pair of boards...also, i'd like to ask you…"
Brad Smith replied to Jerry Normandin's discussion I have a suggestion for a new flight mode enhancment! - Altitude Upper Limit!"How about Geofencing !"
Brad Smith replied to steve F11music.com's discussion Ritewing Zephyr II plus APM1"i know there's a certain amount dead band fluctuation. have you tried it with a servo straight to the receiver ?"
Richard replied to Brad Smith's discussion What do you think the APM should do on fail safe"That variable period is what Pulse Position Modulation means.
It is the way that analogue RC Txs communicated with their Rx, and thus a lot of Rxs still have this as an optional built-in output - including modern digital ones.
You'll notice…"
Brad Smith commented on CrashingDutchman's blog post A biologically inspired morphing-wing bat"you can see how it flaps by a servo they must be using muscle wire for the elbow"
Brad Smith replied to Fred Forbes's discussion Receiver failsafe issue with APM2"i must be missing something ! i have a stock turnigy 9x and the failsafe is fully programmable from 0 to 100% on every channel what else could or should it do ?"
Jake Stew replied to Brad Smith's discussion What do you think the APM should do on fail safe"Sorry, the "***" should say "ass". Don't know what happened there. My internet connection isn't always at 100%, must have been a transmit error?"
Brad Hughey replied to Brad Smith's discussion What do you think the APM should do on fail safe"I first saw a "Berg Pin Header Strip" on the original IBM PC in 1981. They're cheap, lightweight, and easy to use (although non-polarized in most applications). They were, however, never intended for high vibration…"
Andrew Dunlop replied to Brad Smith's discussion What do you think the APM should do on fail safe"It is my pleasure :-)
Cheers,Andrew"
Jake Stew replied to Brad Smith's discussion What do you think the APM should do on fail safe"Thank you for this pointer Andrew!
Props for helping me, shaming me, and being an ass simultaneously in well under one line."
James replied to Brad Smith's discussion What do you think the APM should do on fail safe"there i read it!
ive been watching in horror as the number of replies ballooned here, but given the subject so i had to read it. im glad to see that its come down to what seems to me the best possible conclusion.
hopefully will get around to…"
John Wiseman replied to Brad Smith's discussion What do you think the APM should do on fail safe"I assume that the APM is using edge-triggered interrupts to detect the start of each channel in the multiplexed signal, which is really simple (simpler than synchronizing based on a clock signal, I'm guessing).
But it should still be possible…"
Jake Stew replied to Brad Smith's discussion What do you think the APM should do on fail safe"Still not quite getting this. If I were to skip a channel why exactly would this screw up the ordering?
I don't see how this is "self-evident".
To me it is "self-evident" that you have a 22.5 ms frame with a sync pulse…"
Richard replied to Brad Smith's discussion What do you think the APM should do on fail safe"Apologies if I'm teaching people to suck eggs.
The PPM Encoder takes up to 8 individual inputs from the Rx and re-encodes them as a single pulse train.
This allows all the Rx inputs to be received by the main APM MCU (2560) on a single pin with…"
Jake Stew replied to Brad Smith's discussion What do you think the APM should do on fail safe"> Jake, the "non-locking wire" connector is a non-issue.
Of course! ...unless it comes loose and your aircraft flies away under full power because a certain device starts injecting an unintended signal.
We're talking about…"
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Comment Wall (1 comment)
- At 10:58pm on September 5, 2012, SaadTiwana said…
Hi Brad,
I read your comment on a discussion about the DNT900 radio. I have got a pair and am designing a generic interface board for that. I wanted to know if you'd still be interested to get a pair of boards...also, i'd like to ask you some questions regarding the board desin and features..
Looking forward to hearing from you.
-Saad
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