Serial connection timeout on ROS Melodic

[kushal2507]

I am using the px4flow optical sensor on ubuntu 18.04 with ros melodic. I get a Serial connection timeout warning after launching the px4flow.launch file. I see the topics, but the topics do not have any messages in them.

However, when using it on a different laptop with ubuntu 16.04 and ros kinetic I dont face this issue and the sensor runs completely fine.

Has anyone faced this issue before and knows a way around this?

Thank You!