Joystick control delay

Jetson Nano

I am using VOXL 2 with Flight core V2 as flight controller along with Doodle labs for communication and control.

While I try to fly the system with joystick through QGC , there is a visible delay in the mode changing as well as arming and disarming. The same time I am also facing delay in controlling the drone, the joystick inputs are delayed sometime, the drone is not taking input and once it takes it continue to roll or pitch or whatever command that was previously provided by me.

It would be great if anyone could help me with solving this issue, is it a parameter issue (PX4, QGC, or Doodle labs), or any other issue. Can the delay be because of the command is passing from Voxl to FC, should I change any parameter in the VOXL servers.

Eric Katzfey

@Jetson-Nano There are multiple sources of delay in that control pipeline but I would guess that the Doodle link and the serial link to the FC are probably the 2 biggest sources of delay. Can you run any experiments to help figure that out? Are you able to swap out the Doodle with WiFi to see how that affects the delay? Can you run PX4 directly on VOXL 2?