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Unable to sync with device;

asked 2022-04-20 00:25:51 -0500

ahmet
1 ●4 ●8 ●9

updated 2022-04-20 00:30:07 -0500

I want to try connection computer and arduino by rosserial but i get error,what should i do?

rosrun rosserial_python serial_node.py _port:=/dev/ttyUSB0

[INFO] [1650442585.954136]: ROS Serial Python Node

[INFO] [1650442585.962765]: Connecting to /dev/ttyUSB0 at 57600 baud

[INFO] [1650442588.071993]: Requesting topics...

[ERROR] [1650442618.082675]: Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino

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answered 2022-04-20 04:50:41 -0500

Armin Wolf
3 ●1 ●2 ●6

First, check that the baudrate is the same on the arduino and the computer. If thats the case, then check if your rosserial protocol version (noetic, melodic, ...) matches the protocol version used by the arduino. Also check if the arduino is indeed connected to /dev/ttyUSB0. If everything is correctly set up, then maybe the software on the arduino is buggy.