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Interesting GPS Power Problem

I have an APM1 with Mediatek gps connect via standard cable. I have had many flights in the past and seemed that when gps blue led locked on the red APM lite followed. I now loaded the new B6 firmware and the APM seemed like there was no gps - no fla

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HY-SRF05 Ultrasonic Sensor

I would like to know has anyone tried to use the HY-SRF05 ultrasonic sensor to read the reading using the one pin method ?
I have tried using the ping sample code in the Arduino IDE and have connect the trigger pin to digital pin 7 and echo pin to GND

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Xbees Are a Pain in the A....

We've been trying to prep and fly 3 pairs of Xbees on 3 rc planes for the past week. We've had repeated issues with the Xbees all the time. Sometimes it would connect and work great. On other days it would disconnect. No issues with the boards as we

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Can loiter speed be tuned?

Hi all,

 

Just a simple question.

Can loiter speed be tuned? (Assuming that the loiter radius is large enough for the maenuveur to be made)

Does it take reference from airspeed and cruise throttle settings?

 

Thanks!

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Arducopter parts

I am looking to get started and move in to FPV a little later. I have 20 some years in rc  and consider myself being able to get the hang of it quickly, but never FPV'd before. What are some parts I should stock up on, other than props?

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Anti crash - cartwheeling

Hi folks,

Tell me to go away if this has been covered before. I know crash prevention has and I've read a bunch of posts but not seen anything like this.

Today while flying, a prop came off while I was about 40m up. On a quad this is pretty terminal.

As

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DIYDrones Rants and Raves

Ok guys, with all the people waiting on APM2 and all the exciting new alpha and beta releases of APM firmware coming, I think many people are starting to chomp at their bits, a little.  

To that end, I've opened up this discussion for all those with c

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