Dear,
I would like to send a Actuator command to activate a magnetic gripper from Mavros, without sending the Pitch, yaw, roll. There is a group_mix enum in the Mavlink message (as well as in Mavros) but it looks not implemented in the PX4 Firmware.
Mavros message : http://docs.ros.org/api/mavros_msgs/html/msg/ActuatorControl.html
PX4 Firmware implementation https://github.com/PX4/Firmware/blob/b2d47adf56cc2157659945afd241aeffdec320b3/src/modules/mavlink/mavlink_receiver.cpp#L988-L1057
What is the correct way to do control AUX channels?