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Simulation of URDF, Gazebo and Rviz | ROS Noetic Tutorial 8

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Design a User-defined robot of your choice (or you can use the URDF file) and enable the LIDAR Scanner so that any obstacle placed on the path of the light scan will cut the light rays. Visualize the robot in the Gazebo workspace, and also show the demonstration in RViz.   (NB: Gain knowledge on wiring URDF file and .launch file for enabling any user-defined robot to get launched in the gazebo platform.) SLAM : One of the most popular applications of ROS is SLAM(Simultaneous Localization and Mapping). The objective of the SLAM in mobile robotics is to construct and update the map of an unexplored environment with the help of the available sensors attached to the robot which will be used for exploring. URDF: Unified Robotics Description Format, URDF, is an XML specification used in academia and industry to model multibody systems such as robotic manipulator arms for manufacturing assembly lines and animatronic robots for amusement parks. URDF is especially popular with users of the Robo
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Setting Root Password in MySQL and PhpMyAdmin

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If you are using PhpMyAdmin as part of WAMP(Windows, Apache, MySQL and PHP), then you need to take care of the root password and hence follow the steps.

If you change, only the MySQL password or PHPMyAdmin Password, then the PHPMyAdmin screen does not show the databases, files, etc (instead it will show access denied).

  1. So Both MySQL and PhpMyAdmin password should be changed and both password should be equal.
  2. Go to mysql command window (by default the MySQL has no password)
  3. Execute the command set password=password("abc123");
  4. find the config.inc.php file under phpmyadmin folder (usually in WAMP it will be under C:\wamp\apps\phpmyadmin2.11.6) and find the following line in the config.inc.php file $cfg['Servers'][$i]['password'] = ' '; // MySQL password
  5. Replace the line to $cfg['Servers'][$i]['password'] = 'abc123'; (as the password the mysql is also "abc123".
  6. now restart the server and now open http://localhost/phpmyadmin/
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  1. Raja SekharanNovember 21, 2008 at 3:23 PM

    I think the recent versions of phpMyAdmin don't require you to hardcode a password into the config file. Just put the files in the server and it will automatically try to connect to localhost. You can directly use the local server's user name and password to log in and manage the databases.

    If you want to manage a remote database (other than 'localhost'), you should enter the server info in the config file.

    Raja Sekharan

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