"hi vova, congrats for this wing, i was wondering if you had an idea when it ll be back in stock on rangevideo website, and what would be the global cost for send one to france? thx for your time best regards "

"I am also interested in this.  I have both types of sonar, but I am trying to encourage my local community to build rovers and I am trying to get the price point down as far as possible.  As I can get the HC-SR04 down to $1.50 in…"

"Ok i will get back to you, thanks."

"short answer: no. long answer: check back in about a month and I may have a solution for you. or someone may have done it already and I simply haven't been able to find it. I currently have a testing problem as I broke one of the motor mounts…"

"So just to see if i guet this right.... i have buy two of this (one as spar parts) to use in my quad with APM2... will it work???!"

"though it may be less accurate, it is the fastest output to read. It also requires fewer pins. And in this particular case the HC-SR04 doesn't have a digital output, it's just analog in the time domain."

"IIRC, the analog output of the maxsonar devices are not the most accurate one. Would make more sense to do the other way around and change the arducopter to read the digital output of the sensors. This way, both could be supported easily.…"

"also, this deserves a cross reference here I think: http://www.multiwii.com/forum/viewtopic.php?f=7&t=1033&start=80"

"I'm working on a solution for this. The current MaxsonarXL implementation uses a generic analog source reader with a default median filter. The interface returns centimeters, so a simple wrapper around i.e. the New-Ping library might work, but…"

"Hello I don't think so. Arducopter reads the analog value of the ultrasonic sensor. This one does not have an analog output and the distance is measured by sending a pulse to the pin trig and counting the time it takes to receive the echo on…"

"mine is using dji 450 frame also, would you send me a pid settings for reference?  What size of motor you use?"

"hi vincent, here are my params i use a dji 450 frame with 18a hk plush esc and these motors http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=3732 9*4.7 prop hope it help :) "

"I totally agree. I loaded 2.5.4 into my homemade Quad the other day and went flying.  The default settings that are delivered seem to agree nicely with it. Very little wind so a good day to try the more advanced modes again - they've been…"

"Could you please share some info on your setup? Looks great!!"

"John,  many thanks for the encouragement, next flying day out, gonna select Loiter, Thanks buddy"