motor arming

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motor arming

wang siqi
Dear everyone,
        I am a college student from China,I reached a problem of motor arming that the default way of motor arming (zero throttle and full yaw)will make two motors of my quadrotor  rotating,(only two ,not all of them)which I think is very dangerous. So I want to ask : does anyone has the similar experience ?If so ,how to solve this problem? PS: on the website paparazzi.org,I found the way of motor arming can be changed by configuring other sequences,but I dont know how ... PLEASE HELP ! THANK YOU VERY MUCH!


 


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Re: motor arming

flixr
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If I understand you correctly, two motors spin slowly (idle) after arming, while the other two are off instead.
In that case it is actually not an arming problem, but rather two motors have a too low neutral(idle) setting in the servo section:
https://wiki.paparazziuav.org/wiki/Airframe_Configuration#Servos

Cheers, Felix

On Wed, Feb 24, 2016 at 3:17 AM, WANG SIQI <[hidden email]> wrote:
Dear everyone,
        I am a college student from China,I reached a problem of motor arming that the default way of motor arming (zero throttle and full yaw)will make two motors of my quadrotor  rotating,(only two ,not all of them)which I think is very dangerous. So I want to ask : does anyone has the similar experience ?If so ,how to solve this problem? PS: on the website paparazzi.org,I found the way of motor arming can be changed by configuring other sequences,but I dont know how ... PLEASE HELP ! THANK YOU VERY MUCH!


 


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Re: motor arming

wang siqi
Dear flixr,
      THANK YOU FOR YOUR REPLY!
      You know in China, few people know about the paparazzi UAV,while the pixhawk is widely used,so it is a little bit tough for me to learn about the details of the paparazzi UAV, thus every help is precious for me.
Thank you again!
      Well I have taken your advice and change the neutral setting in the servo section. however,to be honest,I am not satisfied with this way of motor arming and want to change it, and I know it can be changed by defining USE_KILL_SWITCH_FOR_MOTOR_ARMING or USE_THROTTLE_FOR_MOTOR_ARMING in the airframe XML file. But I don't know specific place it can be put in the file, in the fireware or in any subsystem? Please help me and I will appreciate it!
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Re: motor arming

flixr
Administrator
Hi,

you can e.g. put a <define name="USE_THROTTLE_FOR_MOTOR_ARMING" value="TRUE"/> in your firmware section.

Cheers, Felix

On Thu, Feb 25, 2016 at 3:58 AM, wang siqi <[hidden email]> wrote:
Dear flixr,
      THANK YOU FOR YOUR REPLY!
      You know in China, few people know about the paparazzi UAV,while the
pixhawk is widely used,so it is a little bit tough for me to learn about the
details of the paparazzi UAV, thus every help is precious for me.
Thank you again!
      Well I have taken your advice and change the neutral setting in the
servo section. however,to be honest,I am not satisfied with this way of
motor arming and want to change it, and I know it can be changed by defining
USE_KILL_SWITCH_FOR_MOTOR_ARMING or USE_THROTTLE_FOR_MOTOR_ARMING in the
airframe XML file. But I don't know specific place it can be put in the
file, in the fireware or in any subsystem? Please help me and I will
appreciate it!



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Re: motor arming

wang siqi
Hi flixr,
Thank you for your help! My problem has been solved perfectly!