how to use bluetooth connect with ROS and lego NXT robot [closed]

asked 2012-07-17 03:33:36 -0600

weilee gravatar image

I use ubuntu 10.04. I want to use bluetooth to try driving nxt robot. so, i use command "roslaunch nxt_robot_sensor_car robot.launch" after show this:

[INFO] [WallTime: 1342531520.914626] Creating motor with name r_wheel_joint on PORT_A [INFO] [WallTime: 1342531520.919248] Creating motor with name l_wheel_joint on PORT_B [INFO] [WallTime: 1342531520.919630] Creating motor with name m_wheel_joint on PORT_C [INFO] [WallTime: 1342531520.919944] Creating gyro with name gyro on PORT_3 [INFO] [WallTime: 1342531521.703001] Calibrating Gyro. Don't move the robot now [INFO] [WallTime: 1342531523.734039] Gyro calibrated with offset 0.228026 [INFO] [WallTime: 1342531523.739392] Creating ultrasonic with name ultrasonic_sensor on PORT_2 [INFO] [WallTime: 1342531523.898967] Creating color with name color_sensor on PORT_1 [WARN] [WallTime: 1342531524.164023] l_wheel_joint not reaching desired frequency: actual 15.785669, desired 20.000000 [WARN] [WallTime: 1342531524.164398] gyro not reaching desired frequency: actual 15.775457, desired 20.000000 [ERROR] [WallTime: 1342531524.214610] bad callback: <bound method="" baseodometry.jnt_state_cb="" of="" <__main__.baseodometry="" instance="" at="" 0x8c8370c="">> Traceback (most recent call last): File "/opt/ros/electric/stacks/ros_comm/clients/rospy/src/rospy/", line 581, in _invoke_callback cb(msg) File "/opt/ros/electric/stacks/nxt/nxt_controllers/scripts/", line 80, in jnt_state_cb self.l_pos = position[self.l_joint] KeyError: 'l_wheel_joint'

then, open new terminal to execute command "rosmake nxt_teleop" then "roslaunch nxt_teleop teleop_keyboard.launch" but, if press the arrow keys, it does not work.

edit retag flag offensive reopen merge delete

Closed for the following reason question is not relevant or outdated by tfoote
close date 2015-03-26 18:24:46.567230