Jason Perry's profile - activity

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2013-06-11 22:41:28 -0500	received badge	● Famous Question (source)
2013-06-09 22:23:48 -0500	commented answer	cmd_vel and motor command max_vel_lin= 0.72 max_vel_th = 2.094 min_vel_lin= 0.0 min_vel_th = 0.0 and the motor node : int mybot_ang_wheel_vel = (fabs(msg->angular.z)100)/(2.094); int mybot_lin_wheel_vel = (fabs(msg->linear.x)100)/(0.72); Is it right?
2013-06-09 22:23:32 -0500	commented answer	cmd_vel and motor command ayush_dewan thanks for your answer,I've already done some experiments. The robot spins once at the speed of 100 about 3 secs so the max ang vel = (2*pi)/3=2.094(rad/sec) and the robot's lin_vel=0.72(m/s).I modified the cmd_vel generator code as below:
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2013-06-08 00:57:24 -0500	asked a question	cmd_vel and motor command Hi Our robot has 2 motors and 4 wheels , there's no odometry or encoder. I've ran Hector exploration (in gazebo) successfully and I can get cmd_vel twist message but the problem is I have no idea about how to change cmd_vel twist message to "our custom commands for motors". we can only send 4 bytes to low level of our robot to drive the robot and they're : { direction of left wheel(forward or backward) , direction of right wheel (forward or backward) , speed of left wheel , speed of right wheel } "speed of left and right wheel is in range of 0 to 100 and there's no unit for them". I was wondering if there's anyone who can help me out and tell me How I can change linear.x and angular.z into our custom speed? Thanks in advance