"does anyone feel like going through the steps on a "Futaba FG8 Super"?"
Crispin's Groups
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DIYDrones - CNC Project
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ArduCopter User Group
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UK Ardupilot Group
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Telemetry over cellular …
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Crispin's Discussions
Ardupilot Mega + Oilpan (2560) For sale (UK / EU)
Started May 15 0 Replies 0 Likes
Folks,I have an almost-new old Ardupilot Mega + oilpan for sale. Nothing wrong with it, it's surplus to requirements so hoping someone else can make use of it.Works perfectly and has no issues. It…Continue
Pitch forward causes large gain in altitude
Started this discussion. Last reply by Dean Wynton May 11. 5 Replies 0 Likes
Hi Folks,I have a stock 3DR with APM2 (default PID parameters) and sonar.This is the first time I've flown the APM2, having upgraded from the APM1.something.Whenever I pitch it forward, it does as…Continue
APM2 LED blinking groups or 4 or 6 - meaning?
Started this discussion. Last reply by Dean Wynton May 13. 1 Reply 0 Likes
Folks,Still trying to sort out what's up with my APM2 (tumble weed blowing across the other threads :( ) but I find an explanation to the flashing LEDs.I've read this already: …Continue
APM2 connection problem (yet another)
Started this discussion. Last reply by Duran DeV May 11. 3 Replies 0 Likes
Hi Folks,My pregnant wife is less temperamental than the connection to my new APM2.It really is hit or miss getting it to connect. I've tried via xbee (both UART0/2 but more successful on UART0 on…Continue
Crispin's Page
Latest Activity
Crispin replied to Szabó József's discussion APM2 with optical flow sensor"Hi,
It does. Search the wiki.
Sent from phone :("
Crispin commented on Crispin's blog post Spektrum DX8 and AR8000 Failsafe setup"A worthy note. It did happen to me. After flying I had the quad in front of me on the ground and still armed (stupid, I know) and turned off the TX. It tried to shot up but due to low batteries, was rather sluggish and I managed to get my face out…"
Knut Graf commented on Crispin's blog post Spektrum DX8 and AR8000 Failsafe setup"One side effect to watch out for, with failsafe set to RTL, is that if you accidentally switch off the TX while your quad is armed, the quad will think "RTL !", and climb to come home. While that is exactly the desired effect in the middle…"
Chris Kreuzer commented on Crispin's blog post Spektrum DX8 and AR8000 Failsafe setup"Great!!! Thanks..."
Crispin replied to eric's discussion A "newly developed series" of anti-vibration grommets"just a thought, I got some CF plates from a friend (off-cuts from a Boeing's wing! How cool is that) which I will be using for a quad. he warned my that the edges are stupidly sharp. Unless the drilled holes are very smooth (polished?) could…"
Crispin replied to eric's discussion A "newly developed series" of anti-vibration grommets"Thanks for the tip. I'm an iDont though :)
I'll see if I can play with the code or write another sketch to measure the data.
My current setup includes props which have not been balanced (but my home made balancer says they're ok :p)…"
Crispin replied to eric's discussion A "newly developed series" of anti-vibration grommets"Eric,
I'm no expert on this buy my take is that, it would be better than nothing but if you tighten it up, even slightly, then the silicone would be compressed and transmit most of the vibration.
Seeing as your top plate is nothing other…"
Crispin replied to eric's discussion A "newly developed series" of anti-vibration grommets"probably granny and eggs here but, How tight did you make them? If they're compressed then anything will transmit the vibration."
Crispin replied to eric's discussion A "newly developed series" of anti-vibration grommets"I used the silicone PC fan mounts. They work perfectly. The thin side fits snugly through the APM holes and the fat side fits snugly through 3.5mm holes drilled into the quad's top board.
They a dirty cheap as well (if you don't have them…"
Crispin replied to Bradley J Carr's discussion Sonar questions. in the group ArduCopter User Group"Just watched the vid. Sorry, fresh out of ideas. Does seem like quite a slide. From the on-board video though, it does not look like it was trying to correct itself?
I had something happen on one of my auto flights, seemed to be doing ok and then…"
Crispin replied to Bradley J Carr's discussion Sonar questions. in the group ArduCopter User Group"Grass should be fine, wheat might be a bit erratic.
Interesting though that you say the end of the graph is where it is going down - I would have expected the sonar alt to be near zero (think it will zero if it lands on it's head as…"
Crispin replied to Bradley J Carr's discussion Sonar questions. in the group ArduCopter User Group"I'm not a pro but I would say it does look like you might have a noise (or erratic read?) problem. See your green line, it looks like you were above what the sonar could do but the drops and spikes in it could be noise. I'm not…"
Crispin replied to Bradley J Carr's discussion Sonar questions. in the group ArduCopter User Group"In 2.5.5 it is (apparently) supported.
I ordered one the same time as I ordered my APM2 and was gutted to find out they cannot be used :( With the new shiny 2.5.5 they are supported so I broke out the soldering iron and got connecting only to…"
Crispin replied to Bradley J Carr's discussion Sonar questions. in the group ArduCopter User Group"You could have noise on the sonar. There are a number of ways you can eliminate that. There is an entry in the wiki IIRC. Using twisted sonar cables is also a good idea. The sonar could be affected by many things but overall, it should be…"
Crispin replied to Bradley J Carr's discussion Sonar questions. in the group ArduCopter User Group"The sonar has a limit of about 8m. If you are near this or indeed roll far enough, that 8m limit would be broken and there would not be a return (both from distance and the fact that there might be nothing reflected back). I assume it would then…"
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Crispin's Blog
Spektrum DX8 and AR8000 Failsafe setup
Posted on March 29, 2012 at 2:30pm 17 Comments 10 Likes
I've been struggling to understand how to get the APM failsafe working properly and have yet to find some clear instructions that a noob like I can follow. It suddenly dawned on me how to get it all setup.
Here is my normal zero throttle output:
Here it is when the radio is off:…
Continue 3DR battery tray and camera mount.
Posted on February 12, 2012 at 3:30pm 1 Comment 2 Likes
Not being overly chuffed with the battery mount on the 3DR and wanting somewhere to mount a camera, I decided to make another layer to the quad. A third plate below the quad seemed idea.
I fished out a scrap of unused fibreglass PCB I had in my goodie box. I took the quad apart to get at the bottom plate to copy as a template.
The normal plates have a series of 3 holes in the middle of each edge which seemed a perfect option to mount stuff. I…
Continue Headlights when motors armed.
Posted on February 10, 2012 at 3:30pm 5 Comments 1 Like
I added very bright LED headlights to the quad a while back a) to freak the locals out at night and b) to help with orientation when the quad is far away. These are 12V LEDs and run straight of the 3S lipo. All was well....
One thing I don't like much is the rather small and dim SMD LED to tell me when the motors are armed. Mostly…
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Contests
Season Two of the Trust Time Trial (T3) Contest has now begun. The third round was a reliablilty/aerial photography round for both planes and copters, which is now closed. Stay tuned for the next round, beginning soon.A list of all T3 contests is here.
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