ROS "failed to contacat master" and shaking drone

[zhanghaijason (Jason)]

Hello,
The first problem is that when I try to use ROS to get distance and downward images, the drone goes out of control and the pi shows"failed to contact master… retrying…". Previously I did the same experiment and there is no such error. Does anyone knows why is it?
The second is that the drone shakes after takes off. I have used the anti-vibration part and a new navio2(since previously it also shaked). So how could I make it fly stable？
Thanks!

[george.staroselskiy]

@zhanghaijason

The second is that the drone shakes after takes off. I have used the anti-vibration part and a new navio2(since previously it also shaked). So how could I make it fly stable？

We’ll need logs to analyze this. Please upload them for us to look into.

@zhanghaijason

The first problem is that when I try to use ROS to get distance and downward images, the drone goes out of control and the pi shows"failed to contact master… retrying…"

Could you please shed a light on what’s exactly you’re trying to achieve? What kind of software did you use?