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I realy need your help! First of all, excuse my bad english.

I set up a plane with ardupilot mega and the imu sheeld. i attached following

• ublox gps
• airspeed sensor
• 4 servos (aileron with y-cable)
• xbee xbeexsc
• esc to power whole system by my 3s lipo

my problem is, that if i test the autopilot with one servo and NO xbee attached, everything works fine.

when i attach more servos, the ardupilot will not boot (flashing leds stopp after some seconds, then it starts over again and again)

same problem with xbee connected.

I tried to work with external power from a 2s lipo (yes i removed the jumper:)

now without xbee everything works fine. my plane is flying on my table now since 20 minutes.

as soon as i connect the xbee, i have the same problem again.

so i tried to give the xbee its 5V from a +Pin from the servo connectors (the esc power source): ardupilot starts, runns perfectly for 1-3 minutes, then restarts again (or hang up)

any idea what i can do? i realy would like to have the telemetry, too

Thanks so much

tom