Lost sync with device..restarting

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That ROS node looks like it's designed to communicate directly with the IMU, but you say that you've connected the IMU to your arduino. You probably don't need the rosserial node and the IMU node both talking to the same serial port (this will probably cause conflicts).

Thanks for enlightening me. So how do I fix this? I want the values from thr sensor on my Arduino to drive my thrusters.

You haven't provided a wiring diagram, any of the code that's running on the Arduino, or anything details about the other ROS nodes you're running, so it's hard for me to tell you how to fix any other problems you might have.

Hey, I think there's some misunderstanding from my part. The IMU sensor is attached as a separate component. It's not attached to the arduino, so that's why both the nodes should work together properly. I just have 2 nodes for simplicity. The rosserial node and imu sensor node. Thanks in advance!

My Arduino code is pretty simple. I've just subscribed to 3 topics from the sensor, namely, imu/data, imu/heading..etc and printing the received values..where it's giving garbage values too, maybe because the sync getting lost is printed on my terminal.

Ok; the connections definitely weren't clear in the original post. Which ROS node is printing the "Lost Sync with device" message?

The imu sensor node, the one which I linked from github. Shouldn't it have rospy.spin and stuff? It has been killing me lately.

rospy.spin() is a convenience function; a node doesn't need to call it to work. https://github.com/udmamrl/SpartonCom... does not contain any error messages that resemble "lost sync" so I don't understand where that error is coming from.