Making the final preparations for the participation of MyzharBot-v4 at the next conference GTC 2016 by Nvidia (San Jose, California, APRIL 4-7, 2016), I realized that it would be very helpful to have two guides for the realization of two basic operations for using the Nvidia Jetson TX1 on a…
In the following video you can see one of the first test of the integration of the Ultrasonic Bumper with the ROS framework. The test verifies the response time of two sensors mounted on the front panel of MyzharBot-v4. The ros_ultrasonic_bumper node acquires the ranges from the two sensors and publishes…
The optical spatial sensors mounted on MyzharBot v3 and MyzharBot v4 have a intrinsic limitation that make it unable to perceive obstacle that are too near along its forward motion direction. Asus Xtion Pro Live does not see obstacles nearest than 50cm, Stereolabs ZED does not see obstacles nearest than…
A new ROS package is available to verify the status of the DCDC-USB power converter by Mini-box.com and integrate the information with the ROS diagnostic system.
On MyzharBot v4 the Asus Xtion Pro Live RGB-D sensor has been replaced by the Stereolabs ZED stereo camera, in order to overcome the limitations of the Primesense technology in outdoor environment under the direct sunlight. The installation of the ZED camera on the Nvidia Jetson TK1 is really straigthforward as…
MyzharBot v3 is closed in a box ready to leave Italy for a trip that I will describe in the near future… MyzharBot v4 is almost ready to move its first steps… but I’m not yet convinced about the central closed structure that will contain all the electronic boards… So it’s…
To give to MyzharBot a better 3D knowledge of the environment I’m working on the integration on ROS of the 3D RGB-D sensor DepthSense DS325 by SoftKinetic. DS325 is a RGB-D camera based on Time-of-Flight technology.
I finally added Asus Xtion Pro Live to the virtual model of MyzharBot (not yet fully complete) in Rviz GUI. The result is the following To obtain this result you must run the following commands, every one in a different terminal: $ roslaunch ros_myzharbot_robot myzharbot.launch runs the “serial_bridge” node to…
In this new video a demonstration of the teleoperation of MyzharBot using the “Interactive Marner Twist Server“, an amazing Rviz tool that allows to send Twist (linear and angular speeds) messages to the “serial_bridge” node simply dragging a circular marker. The final effect is really good and driving the robot is…
A short post to show the potentiality of the Asus Xtion Pro Live used in the ROS framework. First of all an image of the full RGB-D power: 3D pointcloud with RGB information in Rviz In the middle of the 3D pointcloud you can see the simulation of the 2D laserscan…
