Turtlebot arm servos not being recognized [closed]
I am using a turtlebot arm and just finished getting the ROS sketch uploaded to the ArbotiX board when I ran into an error. I run the command to search for the servos after having plugged only one into the board and get the following result:
turtlebot@turtlebot-laptop:~$ rosrun arbotix_python terminal.py /dev/ttyUSB0
ArbotiX Terminal --- Version 0.1
Copyright 2011 Vanadium Labs LLC
>> ls
.... .... .... .... .... .... .... .... ....
.... .... .... .... .... .... .... .... ....
>>
I have tried multiple cables and multiple servos to see if either was the problem. Neither of them turned out to be the problem. I have established that the servos do at least move, since I was able to issue them commands using PyPose. The only concern that I have is the the red light on the servos first light up when I plug them in, but do not stay lit for more than a second. I am currently running the arbotix board directly off of a iRobot Create battery (as opposed to going through the power board, since the only port on my power board is being occupied by the create). I don't think that should cause a problem, but figured I would mention it. Does anyone have an idea why my computer cannot read the servos, or any recommendations for other troubleshooting steps to take? Thank you very much!
