Navio 2 freeze when I move it!

In the first picture is the connections that i have…in the second one I try to connect the Navio 2 to Mission Planner via telemetry…and the last one …shows how the Navio 2 is frozen…sometimes…it is continue to work until I try to move the command surfaces …if I move the autopilot on any axes with a small angle …it works just fine…but if i move it with a bigger angle it freeze…I can t send a video because i should convert its format …I hope that you can understand what happens…thank you!

Sorry, I don’t understand what you mean here :frowning: Could you please rephrase that?

I suggest trying out UDP connection and use UDP in Mission Planner as link option.

sudo ArduPlane -A udp:<ip>:<port> -C /dev/ttyAMA0

Ok …let s try again…
I give the command : sudo ArduPlane -A -C /dev/ttyAMA0
I understand that in this moment I can connect with both udp and telemetry link. ok?
BUT: when I hit enter after i wrote sudo ArduPlane -A -C /dev/ttyAMA0 I heard all the servo and SOMETIME the motor initialyzing and I have a few situations:
1.The ArduPlane is initialyzing bun after a few rows of unknown signs it is just stop;

  • after stop I can t connect with any links (udp or telemetry)
  1. I receive a message like: Raspberry Pi 2/3 with BMC2709!..
  • I can t to connect to mission Planner with any of links
  1. Sometimes when I succeded to connect to Mission Planner (I don t know why sometimes works and sometimes not work)…If I put my hand on the AutoPuilot (Navio2) and move it on it s axes (especially in its left side) it freeze…stop…block…I don t know how to say…

i am desperate to find what happens because I bought them to use not to put into a box and leave them…/

thank you !

Maybe I am not very explicit but trust me that I am also confused!

The last screenshot shows expected behavior: nothing is outputted to the console. It’s alright.

Is it possible that after something wend south you ssh’ed into the Raspberry and launched ArduPilot one more time even though the other instance had already been launched at the time?

I’d recommend sudo killall ArduPlane beforehand in order to eliminate the latter issue.

The latest beta is easier to configure. have a look at it, please!

What is happening to the RGB LED on the Navio during the freeze?

I use the command: sudo killall ArduPlane…but nothing…
Leds when I can t connect …or when it is blocked:
NAVIO2: - fast flashing multicolor then
- green 2 seconds then
- stop
Raspberry: - continous red light
- flashing gren …both in same time

Could you please post the output of dmesg after the freeze?

I’m also interested why do you power the board the way you do (I mean the chord that is connected to the 14th channel). Could you please verify the board voltage by running cat /sys/kernel/rcio/adc/ch0

After freezing I can t write any command…I receive the message: “Software caused connection abort”
Should I install this new image (Beta)? Do you think it will work with that one ?

I want to ask you to do a couple more experiments to understand your problem more properly.

  1. cat /sys/kernel/rcio/adc/ch1
  2. detach the BEC and the servos
  3. cat /sys/kernel/rcio/adc/ch1
  4. try to launch ArduPlane one more time

It works…After disconnect the all servos and BEC and receiver also…it works properly…I can connected both UDP and Telemetry without no problem.
As you can see in the image …first 3 commands are with servo + Bec connected and the follower three commands are withut servos …in the last one I launch ArduPlilot.

Seems like it’s a power issue. Try to attach every device in order.

Try attaching your BEC and launch ArduPlane. If everything works fine, proceed on attaching the servos.

thank you for advice…everything work ok …until I connect the elevator servo or yaw servo …
I don t think it is a problem with servo connection because i flight the aircraft manually…and it doesn t seem to have wrong cable …
what do you think?

It is hard to undestand …sometimes work with 2 servo connected …sometimes not …

Hello George,

I think I found the problem but I don t know how to solve it!
The Navio2 it doesn t work with more then 2 servos connected to the servo rail…
EX: - throttle + elevator + yaw …it works
- throttle + elevator + elerons … not work (plus 1 servo because elerons channel needed 2 servos)
- throttle + elerons …it works
- throttle + elerons + something else …doesn t work…
Maybe it is because the BEC?? It is setted to have 5 V output …I measure the voltage on the BEC and I have 5.09 V.
Should I put 6 V output on the BEC ??

The conclusion is that NAVIO2 freeze when I connect more than 2 servos to the servo rail!
I am waiting for your advice! Thank you!

Could you please tell what servos are in use? This will help us.

doesn t matter what servo are in use …when i connect more than two servos …it freeze!
I will try to make some measurements on the BEC…I am interested in Amps…it writes on the BEC it will provide 5A…Is it enough for six servos? Do you have any ideea ??

I found the problem …my BEC it is not working properly…even if it was new…I put another BEC on the board …and it is just fine…Thank you very much for your kindness!
I hope to figure out by myself what to do next!

I’m glad you sorted it out!