The VNC server will start on default port 5900. As you maybe know, ROS Noetic does not support JetPack 4.4 which comes with Ubuntu 18.04 Bionic. It is based on the LiDAR sensor data and an approximative position of the robot. If everything is correct, we will get the following screen: Connect your RPLiDAR to your Jetson Nano using Micro USB Cable. Save the Map. Through this connection, we are able to obtain scan data and control speed of scanning. Scanning dependencies of target hector_mapping_generate_messages_lisp The recommended approach is to create an. -- ==> add_subdirectory(hector_slam/hector_geotiff_plugins) Select Active a connection and hit OK. I wished to do SLAM with slam_gmapping. The map is a 2D grid based SLAM map created by the hector_slam library for ROS. I was able to build hector_slam on ROS Melodic / Ubuntu 18.04 - it's a laptop though, not an embedded platform. Do not forget to replace username and server_ip_address with your username and the IP address of your Jetson Nano. Leave command prompt running. Just install the debian package. Save the Map. -- Found gtest sources under '/usr/src/googletest': gtests will be built When you try to use the rviz command by redirecting GUI display using X11 forwarding: You will still see the bellow error message: Rviz cannot be started remotely. The topic produces message type sensor_msgs/LaserScan I'm locking this now since it attracted lots of unrelated comments. So lets do it. I still don't understand how to download the cv_bridge after looking at the wikiros link that you have provided. Can you suggest how to install hector_slam package for ros-melodic. If anyone has a clue of how I could use hector_slam on ROS Melodic, I will be very grateful! License: BSD. Hi I am semi-new to ROS and am trying to run the tutorial.launch file in hectorSLAM and Ive hit a roadblock and keep getting an error when I try to run the tutorial.launch. ROS packaging, build, and communication libraries. *** RPLidar ROS Package: https://github.com/robopeak/rplidar_ros*** Hector SLAM ROS Package: https://github.com/tu-darmstadt-ros-pkg/hector_slam*** RPLidar SDK: https://www.robotshop.com/media/files/content/r/rpk/zip/rb-rpk-02-03-05-07_rplidar_sdk_v1.9.0_1.zip- Raspberry Pi 4 (4 GB RAM): https://amzn.to/36GqwXf- Raspberry Pi 4 (2 GB RAM): https://amzn.to/2Aj7Pg3- Wide angle camera: https://amzn.to/2Pwc6P7*** Special mention to NickL77: https://github.com/NickL77/RPLidar_Hector_SLAM** Go to my channel: https://goo.gl/BjLGnS** Check out my latest video: https://goo.gl/ZhcNi4** Check out my most popular video: https://goo.gl/5KMJnU******** SHOP - Never Stop Learning Apparelhttps://teespring.com/stores/geekmeup******** Find me on Facebookhttps://www.facebook.com/tizianotutorials******** Find me on Reddithttps://www.reddit.com/user/tizianofiorenzani/******** Find me on Linkedinhttps://www.linkedin.com/in/tiziano-fiorenzani/******** Find me on Twitterhttps://twitter.com/TFiorenzani#ros #rostutorial #hectorslam #rplidar You can either connect your Jetson Nano directly to your laptop using an ethernet cable and then set up a static IP and share your network, or you can add a USB WiFi adapter and connect the Nano to the same WiFi network that your laptop is using. It only needs the data from Lidar and relies on scan matching approach to construct a complete map. -- BUILD_SHARED_LIBS is on This tutorial explains the different options. Considering the limited RAM (4GB) and the fact that many use cases do not require desktop environment, replacing Ubuntu Desktop with a simpler but more memory-efficient one can save you around 1GB RAM. Set the Coordinate Frame Parameters. Now you should see the visualization of LiDAR sensor measurements in the RViZ GUI. -- Looking for pthread.h - found program is easily installed and it can also be used to connect to serial ports from a terminal program or system console. The LIDAR uses laser sensor data to create a map of its surrounding using a technique called SLAM Simultaneous Localization and Mapping. i am facing the exact same issue as @henryfhq-drone. However, as I am still a beginner. Rosdep enables you to easily install system dependencies for source code you want to compile and is required to run some core components in ROS: echo "source /opt/ros/melodic/setup.bash" >> ~/.bashrc, crw-rw---- 1 root dialout 188, 0 Oct 30 18:10 ttyUSB0, Step 9 - Configure a catkin workspace and installing ROS packages for the RPlidar, sudo apt-get install cmake python-catkin-pkg python-empy python-nose python-setuptools libgtest-dev python-rosinstall python-rosinstall-generator python-wstool build-essential git, echo "source $HOME/catkin_ws/devel/setup.bash" >> ~/.bashrc, sudo git clone https://github.com/Slamtec/rplidar_ros.git. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . No GUI tools. -- Found Qt4: /usr/bin/qmake (found suitable version "4.8.7", minimum required is "4.6") We are currently evaluating a switch to Melodic and haven't had an issue compiling hector_slam on Melodic. Build space: /home/beagle/catkin_project/build privacy statement. By clicking Sign up for GitHub, you agree to our terms of service and $ sudo apt install ros-melodic-usb . Run below command on terminal: And then press CRTL + X and then Y. -- atomic I recommend to do calibration with inbuilt ROS camera calibration tools. I am trying to build slam_gmapping since I could not find apt-get package "ros-melodic-slam-gmapping". -- ==> add_subdirectory(hector_slam/hector_imu_attitude_to_tf) ROS has many different flavors of installations: plus 2D/3D simulators and 2D/3D perception packages. So lets do it. Lets check it further with Rviz. Or go to your workspace src folder and run rosdep install -i --from-paths . Installation. Step 12 - Connecting to VNC server using VNC client, Now that the SSH tunnel is created, it is time to open your Vncviewer and to connect to the VNC Server at, You can use any VNC viewer such as TigerVNC, TightVNC, RealVNC, UltraVNC, Vinagre and etc.Well be using. Already on GitHub? [ 31%] Generating EusLisp code from hector_mapping/HectorDebugInfo.msg The actual error you're getting comes from cv_bridge not hector_slam. -- Detecting CXX compile features - done Sign in When trying to setup networking, it can ran into a failure. This program is not only free of charge, open source, but also supports OpenGL programs. It is based on the LiDAR sensor data and an approximative position of the . I'm sorry but no one can help you solve an issue if you don't provide any information. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This tutorial will cover how to install ROS Melodic on the Jetson Nano and build a map of our environment using LiDAR and Hector SLAM. -- Configuring done As you know, Jetson Nano has only 4GB RAM, it is not enough to run a high-load ROS applications. Nano is ready to communicate with LiDAR without any additional drivers. -- ==> add_subdirectory(hector_slam/hector_trajectory_server) The most popular client for Windows is PuTTY, which is free and works well. Binaries would also be appreciated. Now you should be able to see the map in rviz like below: Hector_geotiff saves the map and robot trajectory to geotiff image files. -- Found PythonInterp: /usr/bin/python2 (found suitable version "2.7.15", minimum required is "2") While installing XFCE, youll see a prompt to select your default display manager: Use the arrow-keys to select lightdm instead of gdm3, press Tab to move to OK, and press Enter. The most popular client for Windows is PuTTY, which is free and works well. Run the below command. So, let's get started. Open up a second terminal and start the mapping process using below command: roslaunch hector_slam_launch tutorial.launch. . hector_slam uses the hector_mapping node for learning a map of the environment and simultaneously estimating the platform's 2D pose at laser scanner frame rate. -- Using CATKIN_TEST_RESULTS_DIR: /home/beagle/catkin_project/build/test_results I am using rplidar to generate rostopic /scan. [ 0%] Built target _hector_mapping_generate_messages_check_deps_HectorIterData Building a Map Using LiDAR with ROS Melodic on Jetson Nano, Step 3 - How to connect to WiFi network from the command line, Step 11 - Set Up SSH Tunneling on Linux and macOS(optional, RPLIDAR Low Cost 360 degree 2D Laser Scanner (LIDAR)System, RPLIDAR S1 Low Cost 360 Degree Laser Range Scanner, RPLidar and Hector SLAM for Beginners | ROS Tutorial #8, How to Install and Configure VNC on Ubuntu 18.04, How to Install ROS Noetic on Raspberry Pi 4, Installing ROS Melodic on Raspberry Pi 4 and RPLIDAR A1M8. Move into catkin_w/src folder: Since, we do not have base_footprint and our base_llink will be our odometry frame, there is need to modify two files. I have tried to launch the file multiple times and sometimes I get the error: I have set roscd as ~a_ws/devel and the HectorSLAM package has the hector_geotiff package in it. [ 12%] Generating Python from MSG hector_mapping/HectorDebugInfo After reboot, verify it using below command: Let's get started with installing ROS Melodic on the Jetson Nano. -- +++ processing catkin package: 'hector_marker_drawing' So now the next step will be to create a map out of it. I use ubuntu 18.04. @henryfhq-drone I can understand that you have problems with cv-bridge because of the terminal output. [ 37%] Built target hector_mapping_generate_messages_eus Rosdep enables you to easily install system dependencies for source code you want to compile and is required to run some core components in ROS: If you are not comfortable with entering environment variables manually each time, you may configure it in a way that it add itself in your bash session on every new shell startup. -- catkin 0.7.14 I am currently operating on Ubuntu 18.04 with ROS Melodic and I wanted to use the hector_slam package (or group of package). -- ==> add_subdirectory(hector_slam/hector_slam) [ 6%] Generating Python from MSG hector_mapping/HectorIterData Run the following command launch the nmtui interface. Open up a second terminal and start the mapping process using below command: This launch file starts the hector_mapping node as well as the hector_trajectory_server and hector_geotiff nodes needed for generating geotiff maps. Install Qt4. -- date_time If you have already installed try to remove that package and reinstall package and update all dependencies and check it out.Hopefully it will fix your error. -- +++ processing catkin package: 'hector_slam_launch' -- Looking for Q_WS_QWS No API documentation. Source space: /home/beagle/catkin_project/src I'm assuming . any help fixing this error would be greatly appreciated. -- +++ processing catkin package: 'hector_geotiff_plugins' -- Detecting C compiler ABI info - done My guess for the original issue post is that cc1plus was killed due to OOM on the Beaglebone. -- Using these message generators: gencpp;geneus;genlisp;gennodejs;genpy anyone can give a list of steps to install hector_slam for melodic? Here well be using laptop. [ 18%] Generating Python msg init.py for hector_mapping Find this and other hardware projects on Hackster.io. [ 43%] Generating C++ code from hector_mapping/HectorIterData.msg You can install and build ROS Noetic from source for Ubuntu 18.04 if you want, however it can be a frustrating and time-consuming process. The Jetson Nano will then walk you through the install process, including setting your language, username/password, timezone, keyboard layout, wifi setup etc. Step 14 - How to build a Map Using Hector SLAM, We will now add the mapping functionality to our system. -- Looking for pthread_create - not found Please start posting anonymously - your entry will be published after you log in or create a new account. -- +++ processing catkin package: 'hector_geotiff' -- +++ processing catkin package: 'hector_map_tools' We will now add the mapping functionality to our system. Using lightweight desktop environment reduces the startup memory consumption. Hello, I'm quite new to ROS system and I'm trying to build an autonomous robot for a school project using a Jetson Nano (Ubuntu 18.04) with an YDLIDAR X4 Lidar. If it is installed ask the cv_bridge maintainers, they might know what could cause this. It is a command-line tool for controlling Network Manager and reporting network status. Do you have this folder: /opt/ros/melodic/share/hector_geotiff if you have already installed? If you run Linux, macOS, or any other Unix-based operating system on your machine, you can easily create an SSH tunnel with the following command: You will be prompted to enter the user password. The text was updated successfully, but these errors were encountered: All reactions Copy link Member StefanFabian commented May 18, 2019. To build "ros-melodic-slam-gmapping", It is seems to necessary to prepare for "ros-melodic-openslam-gmapping". -- Detecting CXX compiler ABI info - done [ 62%] Built target hector_mapping_generate_messages_lisp On Linux and OS X operating systems, the. Set the Coordinate Frame Parameters. @skohlbr @StefanFabian I don't know whether did we install wrongly or is there anything else that I need to install? See file:///usr/share/doc/gcc-7/README.Bugs for instructions. Excessive amount of memory would be required for building those packages. [ 0%] Built target _hector_mapping_generate_messages_check_deps_HectorDebugInfo You can resolve the errors with the following command: And then run the following at the command line: Alright we are almost there, now the final step is to launch the above file and see the result in rviz. [ 75%] Generating Javascript code from hector_mapping/HectorDebugInfo.msg [ 25%] Generating EusLisp code from hector_mapping/HectorIterData.msg You can do that by entering the commands below on the Nano. -- Using these message generators: gencpp;geneus;genlisp;gennodejs;genpy By clicking Sign up for GitHub, you agree to our terms of service and For example, rviz and other programs can also open normally. Scanning dependencies of target hector_mapping_generate_messages is a low-cost LIDAR sensor suitable for indoor robotic SLAM(Simultaneous localization and mapping) application. Once you have connected the RPLiDAR to your Raspberry Pi, type the following command line to check the permissions: Open your terminal and run the following command. A map is a representation of the environment where the LIDAR is operating. , is primarily targeted to Ubuntu 18.04, which is why we have this installation tutorial on 18.04. After the successful installation of the x11vnc server on your system. The LIDAR uses laser sensor data to create a map of its surrounding using a technique called SLAM Simultaneous Localization and Mapping. System: ROS Melodic. Be sure to source your ROS setup.bash script by following the instructions on the ROS installation page. Make sure you have installed the cv_bridge dependencies using rosdep install cv_bridge as @sandeepmaddula suggested. Launch Mapping. Handheld Mapping System in the RoboCup 2011 Rescue Arena. -- Looking for Q_WS_WIN Scanning dependencies of target hector_mapping_generate_messages_eus package, since it enables us to create maps. It can be used in the other applications such as: Step 1 - Flash the image to the SD card and boot it up, Download the latest Jetpack image from the. Maintainer: Johannes Meyer <meyer AT fsr.tu-darmstadt DOT de>. Run the below command on a new terminal prompt: The savegeotiff map can be found in the hector_geotiff/map directory. -- Looking for pthread_create in pthread Xrandr is used to set the size, orientation and/or reflection of the outputs for a screen. Launch Mapping. -- Looking for Q_WS_MAC can configure the system through the default debugging port. The orb_slam_2_ros package supports the use of Intel RealSense, and Mynteye S cameras. This is the first time to use ROS for me. with preprocessed source if appropriate. If you have any questions or feedback? $ roslaunch turtlebot3_slam turtlebot3_slam.launch . Next, we will lock Jetson Nano at its maximum frequency and power mode by running the following commands: This will spin the fan, as well as set the CPU and GPU clocks to their maximum value in the current performance profile. RPLidar A1M8 with connector. Linux, the macOS comes with a command-line SSH client already installed. General robot navigation and localization. rosdep install hector_slam should be all you need if you want to build it from source. [ 81%] Building CXX object hector_slam/hector_mapping/CMakeFiles/hector_mapping.dir/src/HectorMappingRos.cpp.o So now the next step will be to create a map out of it. Ill go with installing Desktop Install here. Select the interface which you want to bring online then hit Activiate button. To add objects you want to visualize, click Add button located in the left bottom corner of the RViZ GUI and then select LaserScan object, and then set the topic of LaserScan object to /scan. If you look at the header for this topic it has frame_id: "laser" sudo x11vnc -forever -loop -noxdamage -repeat -rfbauth /etc/x11vnc.pwd -rfbport 5900 -shared, Step 11 - Set Up SSH Tunneling on Linux and macOS(optional), VNC is not an encrypted protocol and can be subject to packet sniffing. On your standalone computer or laptop, the serial port device name must be determined so that the client software can be used on the correct port. -- +++ processing catkin package: 'hector_trajectory_server' Install space: /home/beagle/catkin_project/install -- Build files have been written to: /home/beagle/catkin_project/build, Scanning dependencies of target _hector_mapping_generate_messages_check_deps_HectorDebugInfo I tested hector-slam on Ubuntu 16.04 with ROS Kinetic. This tutorial will cover how to install ROS Melodic on the Jetson Nano and build a map of our environment using LiDAR and Hector SLAM. On Windows clients, Open, to find the port assignment. You have ROS Melodic installed and generated a map using Hector Slam algorithm. -- Found PythonInterp: /usr/bin/python2 (found version "2.7.15") -- Using these message generators: gencpp;geneus;genlisp;gennodejs;genpy If your system does not have swap space available, run the below script to add a 4GB swap file. Please submit a full bug report, To enable automatic login open a terminal and use any text editor for configuration file , If the configuration file already exists then edit it. Firstly, we need to install, echo 1 > /sys/devices/system/cpu/cpu0/online, echo 1 > /sys/devices/system/cpu/cpu1/online, echo 1 > /sys/devices/system/cpu/cpu2/online, echo 1 > /sys/devices/system/cpu/cpu3/online, echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor, ( sleep 60 && jetson_clocks && /usr/bin/jetson_clocks --fan )&, sudo bash -c 'echo "/var/swapfile swap swap defaults 0 0" >> /etc/fstab', Step 7 - ROS Melodic package installation and setup, The official steps for installing ROS are at. -- ~~ - hector_trajectory_server -- ~~ - hector_geotiff . Insert the microSD card into the Jetson Nano. Thats it for today! I recommend you use the ICE Tower CPU Cooling Fan for Nvidia Jetson Nano. Here are steps that worked for me (on debian linux) after git clone of the source. Then go to /catkin_ws/src/hector_slam/hector_slam_launch/launch folder and open tutorial.launch file: Open a terminal window and run the following command: The catkin build command is part of the catkin_tools package. Build a Map Using the Hector - SLAM ROS Package. Hi, hello, how did you manage to install and execute hector_slam in ROS Melodic on a PC? Change fixed frame to laser. -- Detecting CXX compiler ABI info make[1]: *** [hector_slam/hector_mapping/CMakeFiles/hector_mapping.dir/all] Error 2 -- +++ processing catkin package: 'hector_map_server' Ubuntu 18.04LTS $ cd ~ $ sudo apt-get install ros-melodic-rplidar . -- +++ processing catkin package: 'hector_nav_msgs' -- ~~ - hector_map_server if you are on embedded try to build with -j1 or -j2 since building hector_slam take too much memory (or add swap file alternatively). -- Looking for Q_WS_QWS - not found Already on GitHub? -- Using these message generators: gencpp;geneus;genlisp;gennodejs;genpy -- Detecting C compiler ABI info . The next goal is to create a workspace - a catkin workspace - for our RPLIDAR application and its supplements. On Windows clients, Open Device Manager in Windows and expand Ports (COM & LPT) to find the port assignment. -- Found gmock sources under '/usr/src/googletest': gmock will be built I am a hardcore robotics and IoT enthusiast. hector_trajectory_server Saving of tf based trajectories. Overview. You can use. Firstly, we need to install nano editor. Sign in Run rviz. -- +++ processing catkin metapackage: 'hector_slam' You can reach me through email: shahizat005@gmail.com. -- ~~ - hector_marker_drawing On Mac OS X and Linux use below command. (optional) Then run below command to adjust the screen resolution of a virtual desktop. Saving of map and robot trajectory to geotiff images files. The Jetson Nano Developer Kit doesnt include a WiFi module, so you have two options. -- ==> add_subdirectory(hector_slam/hector_mapping) First install turtlebot3 ROS package. The recommended approach is to create an SSH tunnel that will securely forward traffic from your local machine on port 5901 to the server on the same port. -- +++ processing catkin package: 'hector_mapping' JetPack 4.4 is the NVIDIA stack containing Linux, board drivers and SDKs for GPU, AI and ML processing. is a mapping algorithm which only uses laser scan information to extract the map of the environment. We now need to tell, which fixed frame we want to use. -- Using these message generators: gencpp;geneus;genlisp;gennodejs;genpy Then run to source the environment with your current terminal. There are a large number of windows managers available for Linux. library for ROS. . . $ sudo apt-get install ros-melodic-hector-mapping Launch the Hector SLAM node. Hector-Slam on Jetson Nano. -- ~~ - hector_imu_attitude_to_tf -- Looking for pthread_create in pthread - found See the ROS installation page for more details. -- Detecting C compile features @sandeepmaddula Thank you for your advice. -- hector_nav_msgs: 0 messages, 5 services ROS Melodic installation instructions. -- Looking for pthread_create in pthreads How to create ocupancy grid map from my camera topic, Creative Commons Attribution Share Alike 3.0. The Hector SLAM method can be used without odometry. -- Found OpenCV: /usr (found version "3.2.0") Asked: 2020-03-11 10:38:48 -0600 Seen: 2,947 times Last updated: Mar 11 '20 I installed melodic on Ubuntu 18.04. I hope you found this guide useful and thanks for reading. and make sure that you install all dependencies using rosdep install package_name. We want to ensure that these settings will be saved at next jetson boot up. Leave a comment below. @henryfhq-drone . Connect your RPLiDAR to your Jetson Nano using Micro USB Cable. Just follow the steps below. and make sure to have all the dependencies installed (you can find them in package.xml), I've tested this on Odroid XU4 with Ubuntu 18.04 and ROS Melodic. Build a Map Using the Hector-SLAM ROS Package. Increase the size to 0.03 to see the laser scan data clearly. You can use any VNC viewer such as TigerVNC, TightVNC, RealVNC, UltraVNC, Vinagre and etc.Well be using RealVNC. Run rviz. -- This workspace overlays: /opt/ros/melodic RPLIDAR is a low-cost LIDAR sensor suitable for indoor robotic SLAM(Simultaneous localization and mapping) application. Turtlebot 3 + gmapping For slam with ROS melodic + Rviz GitHub.com/insper/robot19By Arnaldo Viana at INSPER. If it is successful, to connect to your Jetson Nano via your local area network, you will need to know the IP address or the hostname of your device. [ 37%] Generating EusLisp manifest code for hector_mapping The frame names and options for hector_mapping have to be set correctly. to your account. This program is not only free of charge, open source, but also supports OpenGL programs. Now you should be able to see in the terminal the data from the LiDAR sensor. should be installed by default on Ubuntu Desktop installs, as well as most flavours of Ubuntu. there is need to modify two files. make: *** [all] Error 2 Select the interface which you want to bring online then hit, Step 4 - Upgrade all installed packages on your Jetson, Step 5 - Turn on the fan and maximum the frequency, SOC family:tegra210 Machine:NVIDIA Jetson Nano Developer Kit, cpu0: Online=1 Governor=schedutil MinFreq=1479000 MaxFreq=1479000 CurrentFreq=1479000 IdleStates: WFI=0 c7=0, cpu1: Online=1 Governor=schedutil MinFreq=1479000 MaxFreq=1479000 CurrentFreq=1479000 IdleStates: WFI=0 c7=0, cpu2: Online=1 Governor=schedutil MinFreq=1479000 MaxFreq=1479000 CurrentFreq=1479000 IdleStates: WFI=0 c7=0, cpu3: Online=1 Governor=schedutil MinFreq=1479000 MaxFreq=1479000 CurrentFreq=1479000 IdleStates: WFI=0 c7=0, GPU MinFreq=921600000 MaxFreq=921600000 CurrentFreq=921600000, EMC MinFreq=204000000 MaxFreq=1600000000 CurrentFreq=1600000000 FreqOverride=1, We want to ensure that these settings will be saved at next jetson boot up. Create the catkin root and source folders: Okay, were ready to start installing RPLIDAR ROS package. that will securely forward traffic from your local machine on port 5901 to the server on the same port. will open with a map of the RPLIDARs surroundings. Here well be using a USB WiFi adapter. A computer with an internet connection and the ability to flash your microSD card. In this tutorial, I would like to set up Hector-slam with Rplidar on Jetson Nano. -- Check for working C compiler: /usr/bin/cc The text was updated successfully, but these errors were encountered: I was able to build hector_slam on ROS Melodic / Ubuntu 18.04 - it's a laptop though, not an embedded platform. Scanning dependencies of target hector_mapping_generate_messages_py i was able to build hector_slam package on odroid XU4 for melodic, using catkin_tools and with j1 argument. -- Using CATKIN_DEVEL_PREFIX: /home/beagle/catkin_project/devel Change the parameters as per your setup. Have a question about this project? -- Looking for pthread_create in pthreads - not found By running the following command, we will download the key from Ubuntus keyserver into the trusted set of keys: Now pick how much of ROS you would like to install. A playlist with example applications of the system is also available on YouTube. Otherwise, create a new configuration file , There are also several different VNC servers available in Ubuntu repositories such as. [ 75%] Built target hector_mapping_generate_messages_nodejs -- ~~ traversing 13 packages in topological order: To use a 5V 4A supply you will need a 2-pin jumper. [ 50%] Generating C++ code from hector_mapping/HectorDebugInfo.msg We are done with the VNC connection. [ 18%] Built target hector_mapping_generate_messages_py ** Get started with ROS with my Zero to ROS course for beginners! -- Looking for pthread.h +1 for this. Go to the source folder of the catkin workspace that you just created: Clone the ROS node for the Lidar in the catkin workspace. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. -- ==> add_subdirectory(hector_slam/hector_map_server) The robots need to be autonomous (hence the lidar) and needs to do social-distancing measurements (Jetson-inference will be used). The launch file is located in ~/a_ws/src/hector_slam/hector_slam_launch/launch and I run: administrator@administrator-OptiPlex-3010:~/a_ws/src/hector_slam/hector_slam_launch/launch$ roslaunch tutorial.launch. To enable automatic login open a terminal and use any text editor for configuration file lightdm.conf. Install Qt4. -- Looking for Q_WS_X11 We use the Hector-SLAM package, since it enables us to create maps. To avoid from memory crashing, we should define swap-space for Jetson Nano. To install these do (you can install on your Ubuntu PC): sudo apt-get install ros-melodic-camera-calibration The official steps for installing ROS are at this link, but I will walk you through the process below so that you can see what each step should look like. Consider adding a cooling fan. Hector SLAMs launch file which can be found at: replace base_footprint and nav into base_link: Then, at the end of this file, find out the below line. Once the permissions are configured, you have to download and install the RPLIDAR ROS packages. Move into, git clone https://github.com/tu-darmstadt-ros-pkg/hector_slam.git. Now pick how much of ROS you would like to install. Hello GuysRobot Kit :https://amzn.to/3fTZUpURplidar : https://amzn.to/3bAe5gwYou guys can also use RPlidar rather than Hokuyo LIdar. [ 68%] Generating Javascript code from hector_mapping/HectorIterData.msg -- Looking for Q_WS_MAC - not found -- ~~ - hector_nav_msgs to your account, Hi Can anyone help how to install hector_slam package for Melodic. There are also several different VNC servers available in Ubuntu repositories such as TightVNC , TigerVNC and x11vnc . When I tried to build the package on jetson nano, running on ubuntu 18.04 LTS with ROS melodic desktop version installed, Error shows something like this. Have a question about this project? If you run Windows, you can set up SSH Tunneling using the PuTTY SSH client. Otherwise, create a new configuration file lightdm.conf. I'm closing this for now since the error message is not due to the code in this repo but most likely an out of memory error on your machine, see this question on stackoverflow for potential solutions. 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