I succesfully tested my APM2 a few weeks ago for the first time and everything was working. However I turned everything on again today and the servos are not moving when I move the sticks on my transmitter. When I hook everything up to the mission planner, I can see the values of my transmitter change but the servos are not moving. When I connect a battery to the APM2 instead of my computer the same thing happens: no servo movement. I have no clue what is wrong.

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I'm having same problem here. Outputs are not working. Have you managed to fix it Yoni?

Well, mine is working when powering via outputs with jp1 shorted. I'll have to split up ESC wires. GND and 5V to output and signal to input. or adding 5V BEC on output and removing power from ESC completely, and have separate battery for APM, servos, receiver, camera and video tx.

I had this happen last week!

 

I was messing around with the HIL simulator and thought that might be the issue but after a reboot, the problem still existed.

I then removed the APM from the loop and tested the servos and the voltage on the output rail only to find that everything was normal.

I put the APM back into the loop and tested the output rail again and found everything normal.

 

In the end I reloaded the firmware and the servos began working again.

 

-Mike

I've tested the output voltage, it's 5v when empty but servo is plugged in it's drops to 1.1, i've tested with 3 servos and the result are the same. voltage drops and no servo movement.

Got an answer from 3D Robotics support: 

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Thank you for contacting 3D Robotics Technical Support. The motors must be armed in order for them to respond to RC. This is for safety. To arm the motors, hold the throttle down and right. We have found that the dataflash card needs to be reformatted before the motors can be armed with the APM2.0. To see if this s causing the problem, you can remove the dataflash card and see if the motors will arm. 

The card can be reformatted by connecting the APM2 to in the terminal tab in the Mission Planner. Wait for "erasing logs", and after a few minutes of unintelligible text, you should see the "logs erased" notice to indicate that the card has been reformatted. 

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Trying it right now



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