Multiple errors when controlling an MD23 with ROS

asked 2017-04-06 09:25:46 -0500

Meccanoid gravatar image

Hey all,

We are trying to control an MD23 motor using ROS. The idea is to have the motors running at all times, and when a message is published to the MotorControl channel stop the motors for a few seconds before resuming.

However, we keep running into [ERROR] : Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino and [ERROR] [1491487501.264662]: Lost sync with device, restarting...

We are running on an Arduino Uno. We thought we had fixed the first error by introducing a delay after the initialization, but after a few runs it came back. We're having a hard time understanding the second error. Are we pushing too much data over the port maybe?

The code can be found in the pastebin below:

Best regards,

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