The site is read-only. Please transition to use Robotics Stack Exchange
| ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
 | 1 | initial version |
Bence, thanks for the link but that did not work. I am a colleague of Parker's and have been working with him on this issue. Upon further research we have found that the problem only occurs if the serial cable is disconnected after using serial_node.py to communicate with the node. In other words we can flash the Arduino with the Hello World sketch, disconnect and reconnect the USB cable and communicate with the node via serial_node.py. However if we disconnect the USB cable after doing so, regardless of whether the Arduino is powered via the barrel plug, we are no longer able to communicate with the node via serial_node.py upon reconnecting the serial cable.
Even more strange I just tried this at home and the results are completely different. In fact everything works as expected. I flash the Arduino and communicate with it via serial_node.py. I then disconnect the USB cable, reconnect it and communicate with it via serial_node.py again. No problem. I can repeat this process as much I as I like and all works well.
In both cases our machines are running Ubuntu 11.10, ROS electric and are completely up-to-date with respect to software updates. Spot checking the ros-electric packages shows they are the same version on both machines. It's fine that it works at home but we need it to work in the lab as well. Any thoughts as to how to correct this issue would be greatly appreciated.
ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
