ROSSerial is intermittently sending Unable to sync with device error
Our current config is: - Teensy 4.0 - Raspberry Pi 4b - ROS Noetic Ubuntu 20.04
It is practically the same config we use on our other robots. However in this case, sometimes after working correctly for some minutes, we start getting an avalanche of this error, and once we get it, it doesn't go away: "[ERROR [1682632635.173195]: Unable to sync with device; possible link problem or link software versi on mismatch such as hydro rossertal_python with groovy Arduino"
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We can sometimes re-install ros-noetic-rosserial and the problem goes away but always reappears. We have tried:
1) Turning off and detaching all other USBs from the Pi 2) We've reinstalled ros-noetic-rosserial-python and rosnoetic-rosserial-arduino 3) We have recreated the ros_lib directory for teensy
Any ideas would be appreciated
Asked by pitosalas on 2023-04-28 14:59:57 UTC
Comments
In my experience, the most likely cause is that your arduino (?) crashed. Another possibility is that the serial usb connection has stopped working or is unreliable.
Asked by Mike Scheutzow on 2023-04-30 08:55:15 UTC