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How to control servo in Pixhawk4 using odroid

asked 2019-12-10 17:31:53 -0500

HENRY6 gravatar image

I have one project which wants me to move the servo by using MAVROS. The servo must be connected to pixhawk. Now I connect the servo to the pixhawk but I am not sure how to move the servo in any degrees. Please kindly teach me how to do it. I am still new to odroid and pixhawk.

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answered 2019-12-10 23:25:02 -0500

Hamid Didari gravatar image

you can use mavros to connect pixhawk to odroid. then by using mavros_msgs/OverrideRCIn topic you can control the pwm output (first yo need to done some setting in your px4)

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What is the command to run the mavros_msgs/OverrideRCIn topic? And, how do I do setting in my pixhawk?

HENRY6 gravatar image HENRY6  ( 2019-12-12 15:17:56 -0500 )edit

read this tutorial

Hamid Didari gravatar image Hamid Didari  ( 2019-12-14 22:50:23 -0500 )edit

I ran roslaunch mavros px4.launch, then rostopic pub -1 /mavros/rc/override mavros/OverrideRCIn '[1500, 1500, 1500, 1500, 1325, 1560, 2000, 1500]'. It showed nothing. From other website, they mentioned to set the SYSID_MYGCS to 1. I followed what they mentioned but it is still the same.

HENRY6 gravatar image HENRY6  ( 2019-12-14 23:21:38 -0500 )edit

did mavros connect to pixhawk correctly? try to subscribe imu topic and check mavras that connected correctly.

Hamid Didari gravatar image Hamid Didari  ( 2019-12-16 23:27:28 -0500 )edit

I'm sorry for the late reply. I could subscribe imu topic.

HENRY6 gravatar image HENRY6  ( 2020-01-21 17:19:32 -0500 )edit

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Asked: 2019-12-10 17:31:53 -0500

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Last updated: Dec 10 '19