# Latest **URL:** https://forum.ubiquityrobotics.com/latest.md?page=2 [Latest](https://forum.ubiquityrobotics.com/latest.md) · [Categories](https://forum.ubiquityrobotics.com/categories.md) **Page:** 3 --- ## [Conveyorbot not turning on STOP marker](https://forum.ubiquityrobotics.com/t/conveyorbot-not-turning-on-stop-marker/1005)
**Author:** [@gjkeena](https://forum.ubiquityrobotics.com/u/gjkeena)\ **Replies:** 5\ **Last updated:** [August 29, 2022, 7:21pm UTC](https://forum.ubiquityrobotics.com/t/conveyorbot-not-turning-on-stop-marker/1005 "2022-08-29T19:21:37Z")
Just got the Magni with Conveyorbot. All the markers seem to work except the Stop Marker. On a Stop marker that points in the opposite direction the Conveyorbot is originally moving, the Conveyorbot does not detect the S… --- ## [Docker Magni Simulation](https://forum.ubiquityrobotics.com/t/docker-magni-simulation/500)
**Author:** [@PedroDesRobots](https://forum.ubiquityrobotics.com/u/PedroDesRobots)\ **Replies:** 4\ **Last updated:** [August 29, 2022, 6:58pm UTC](https://forum.ubiquityrobotics.com/t/docker-magni-simulation/500 "2022-08-29T18:58:18Z")
Hi all, For information, I have created a docker file to setup nicely a docker image based-on ubuntu 16.04 / ROS Kinetic and install all the needed Magni’s dependencies for gazebo simulation. https://github.com/PedroDe… --- ## [Magni\_lidar with ROС noetic?](https://forum.ubiquityrobotics.com/t/magni-lidar-with-ro-noetic/1006)
**Author:** [@tiho\_bg](https://forum.ubiquityrobotics.com/u/tiho_bg)\ **Replies:** 2\ **Last updated:** [August 28, 2022, 1:30pm UTC](https://forum.ubiquityrobotics.com/t/magni-lidar-with-ro-noetic/1006 "2022-08-28T13:30:03Z")
Hi, I would like to ask how to get your demo launch files? I have to update ~/catkin\_ws/src/demos repository. Using ROS noetic I didn’t found demos folder. My question is: Is it possible to use your launch files like ma… --- ## [Sonar / Ultrasound Sensor persistence in cost map](https://forum.ubiquityrobotics.com/t/sonar-ultrasound-sensor-persistence-in-cost-map/970)
**Author:** [@mikarvi1](https://forum.ubiquityrobotics.com/u/mikarvi1)\ **Replies:** 1\ **Last updated:** [August 24, 2022, 9:29am UTC](https://forum.ubiquityrobotics.com/t/sonar-ultrasound-sensor-persistence-in-cost-map/970 "2022-08-24T09:29:52Z")
Hi Ubiquity and Robotic enthusiasts, I added sonars to ubiquity and wanted to sense glass or mirrors as the lidar could not sense the glass or mirror but sonar data is not persistant in the costmap ubiquity\_magni\_silve… --- ## [Magni with Ubuntu 20.04](https://forum.ubiquityrobotics.com/t/magni-with-ubuntu-20-04/999)
**Author:** [@Tanay13](https://forum.ubiquityrobotics.com/u/Tanay13)\ **Replies:** 4\ **Last updated:** [August 19, 2022, 2:36am UTC](https://forum.ubiquityrobotics.com/t/magni-with-ubuntu-20-04/999 "2022-08-19T02:36:49Z")
Hi, I am trying to run the Magni Silver’s mapping functions with Ubuntu 20.04 and ROS Noetic. I’ve downloaded and flashed the latest Noetic image onto the SD card and have a dual boot Ubuntu 20.04 workstation. However o… --- ## [‘python\\r’ no such file or directory](https://forum.ubiquityrobotics.com/t/python-r-no-such-file-or-directory/1000)
**Author:** [@hchoi](https://forum.ubiquityrobotics.com/u/hchoi)\ **Replies:** 1\ **Last updated:** [August 18, 2022, 7:26am UTC](https://forum.ubiquityrobotics.com/t/python-r-no-such-file-or-directory/1000 "2022-08-18T07:26:14Z")
When I do rosrun mypython.py, I have error : /usr/bin/env: ‘python\\r’ : No such file or directory However python mypython.py work fine, --- ## [Preventing Theft/vandalism of Magni Robot in public](https://forum.ubiquityrobotics.com/t/preventing-theft-vandalism-of-magni-robot-in-public/989)
**Author:** [@justinzw](https://forum.ubiquityrobotics.com/u/justinzw)\ **Replies:** 3\ **Last updated:** [August 9, 2022, 2:23am UTC](https://forum.ubiquityrobotics.com/t/preventing-theft-vandalism-of-magni-robot-in-public/989 "2022-08-09T02:23:57Z")
We have somewhat of a unique situation. We will be using our Magni outside and maybe sometimes unsupervised. Has anyone have any experience with preventing theft/vandalism of the robot? Any creative ideas that have de… --- ## [CONVEYORBOT software with STag](https://forum.ubiquityrobotics.com/t/conveyorbot-software-with-stag/986)
**Author:** [@ryan](https://forum.ubiquityrobotics.com/u/ryan)\ **Replies:** 11\ **Last updated:** [August 4, 2022, 9:38am UTC](https://forum.ubiquityrobotics.com/t/conveyorbot-software-with-stag/986 "2022-08-04T09:38:13Z")
So, I am using a default magni silver. I attached it to a lcd and tried to run the CONVEYORBOT software. I have put the HD15 000 and HD 17 000 in font of the camera, but there is no response.(It said nothing detected) I … --- ## [Ubiquity magni robot supply problems](https://forum.ubiquityrobotics.com/t/ubiquity-magni-robot-supply-problems/993)
**Author:** [@marcelocunha65](https://forum.ubiquityrobotics.com/u/marcelocunha65)\ **Replies:** 5\ **Last updated:** [August 4, 2022, 5:18am UTC](https://forum.ubiquityrobotics.com/t/ubiquity-magni-robot-supply-problems/993 "2022-08-04T05:18:40Z")
Hello, I am working with the magni robot for my master’s degree thesis in the Politechnic Institute of Engineering in Porto, Portugal. Lately I am having some problems regarding the power supply of the robot. First the… --- ## [How to get the EZ Map image](https://forum.ubiquityrobotics.com/t/how-to-get-the-ez-map-image/990)
**Author:** [@Jerry](https://forum.ubiquityrobotics.com/u/Jerry)\ **Replies:** 3\ **Last updated:** [July 28, 2022, 1:31pm UTC](https://forum.ubiquityrobotics.com/t/how-to-get-the-ez-map-image/990 "2022-07-28T13:31:05Z")
How to get / download the EZ Map image ? Thanks and Best Regards, Jerry --- ## [EZ Map mapping efficiency](https://forum.ubiquityrobotics.com/t/ez-map-mapping-efficiency/985)
**Author:** [@ryan](https://forum.ubiquityrobotics.com/u/ryan)\ **Replies:** 1\ **Last updated:** [July 18, 2022, 4:48pm UTC](https://forum.ubiquityrobotics.com/t/ez-map-mapping-efficiency/985 "2022-07-18T16:48:42Z")
I have question for the ezmap mapping efficiency. For a small area, the mapping work great and be able to map it in a quick manner. However, when it comes to a large area, the map update slow down on the device(e.g. ipa… --- ## [Magni robot with ubuntu 20.04 LTS?](https://forum.ubiquityrobotics.com/t/magni-robot-with-ubuntu-20-04-lts/987)
**Author:** [@tiho\_bg](https://forum.ubiquityrobotics.com/u/tiho_bg)\ **Replies:** 1\ **Last updated:** [July 18, 2022, 4:27pm UTC](https://forum.ubiquityrobotics.com/t/magni-robot-with-ubuntu-20-04-lts/987 "2022-07-18T16:27:44Z")
Hello, I saw that you have uploaded Raspberry Pi Images for ubuntu 20.04 LTS. Till now I was using Raspberry Pi 4 and ubuntu 16.04 LTS but I wanted to update ubuntu and ROS versions to the latest ones. I see that it is … --- ## [Can not run rostopic battery state](https://forum.ubiquityrobotics.com/t/can-not-run-rostopic-battery-state/979)
**Author:** [@dysqrencia](https://forum.ubiquityrobotics.com/u/dysqrencia)\ **Replies:** 2\ **Last updated:** [July 16, 2022, 8:18am UTC](https://forum.ubiquityrobotics.com/t/can-not-run-rostopic-battery-state/979 "2022-07-16T08:18:32Z")
I tried running rosrun teleop\_twist\_keyboard teleop\_twist\_keyboard.py command to move magni but it says “Waiting for subscriber to connect to /cmd\_vel”. And then, I saw someone had the same problem as me and the comment … --- ## [Having trouble with recent images in older boards](https://forum.ubiquityrobotics.com/t/having-trouble-with-recent-images-in-older-boards/983)
**Author:** [@FFelizpe](https://forum.ubiquityrobotics.com/u/FFelizpe)\ **Replies:** 2\ **Last updated:** [July 16, 2022, 8:15am UTC](https://forum.ubiquityrobotics.com/t/having-trouble-with-recent-images-in-older-boards/983 "2022-07-16T08:15:10Z")
Hello there! I have a Ubiquity Board here, Rev 5.0, and was trying to update it to the newest Pi images. However, I stumbled upon a problem - the navigation, overall, started getting very weird, much like the robot was … --- ## [Motor\_node fails with 'Firmware not reporting its version'](https://forum.ubiquityrobotics.com/t/motor-node-fails-with-firmware-not-reporting-its-version/183)
**Author:** [@bhuvanchandradv](https://forum.ubiquityrobotics.com/u/bhuvanchandradv)\ **Replies:** 14\ **Last updated:** [July 8, 2022, 1:24pm UTC](https://forum.ubiquityrobotics.com/t/motor-node-fails-with-firmware-not-reporting-its-version/183 "2022-07-08T13:24:26Z")
Hello! Lately I’m facing issues with motor\_node. The logs of magni\_base shows " Firmware not reporting its version". I’m using the Ubiquity Robotics Ubuntu image. One thing I did is enabling the uart to use for debug se… --- ## [ROS2 support and when](https://forum.ubiquityrobotics.com/t/ros2-support-and-when/373)
**Author:** [@cowabunga](https://forum.ubiquityrobotics.com/u/cowabunga)\ **Replies:** 6\ **Last updated:** [July 8, 2022, 12:26am UTC](https://forum.ubiquityrobotics.com/t/ros2-support-and-when/373 "2022-07-08T00:26:43Z")
Do you guys intend to get magni working on ROS2 soon? Any dates to that as well? Mind if I took a look at the development? --- ## [Magni move base, does it work properly?](https://forum.ubiquityrobotics.com/t/magni-move-base-does-it-work-properly/849)
**Author:** [@inmoov](https://forum.ubiquityrobotics.com/u/inmoov)\ **Replies:** 14\ **Last updated:** [July 2, 2022, 1:30pm UTC](https://forum.ubiquityrobotics.com/t/magni-move-base-does-it-work-properly/849 "2022-07-02T13:30:55Z")
Hi Ubiquityrobotics, All, I’m trying to use move base (path planners) with Magni in a Gazebo enviroment, first question is are the parameters tweaked to optimal? (below, say for global costmap, local costmap and common… --- ## [noMachine on Ubiquity robot image](https://forum.ubiquityrobotics.com/t/nomachine-on-ubiquity-robot-image/982)
**Author:** [@deleolubodun](https://forum.ubiquityrobotics.com/u/deleolubodun)\ **Replies:** 1\ **Last updated:** [July 2, 2022, 9:52am UTC](https://forum.ubiquityrobotics.com/t/nomachine-on-ubiquity-robot-image/982 "2022-07-02T09:52:37Z")
Hello There, can I use nomachine on Ubiquity robot image? --- ## [Battery Charger Problem](https://forum.ubiquityrobotics.com/t/battery-charger-problem/976)
**Author:** [@alexjr](https://forum.ubiquityrobotics.com/u/alexjr)\ **Replies:** 3\ **Last updated:** [June 30, 2022, 6:12pm UTC](https://forum.ubiquityrobotics.com/t/battery-charger-problem/976 "2022-06-30T18:12:38Z")
Hello, my battery charger for the Magni robot, is no longer working. When plugged in, none of the indicator LEDs light up. LED1 is on when connected to the robot plug, but LED2 which should indicate the charging procedur… --- ## [Wifi didnt show up](https://forum.ubiquityrobotics.com/t/wifi-didnt-show-up/978)
**Author:** [@dysqrencia](https://forum.ubiquityrobotics.com/u/dysqrencia)\ **Replies:** 2\ **Last updated:** [June 29, 2022, 6:51am UTC](https://forum.ubiquityrobotics.com/t/wifi-didnt-show-up/978 "2022-06-29T06:51:18Z")
I tried turning on the old Magni robot, but the wifi did not show up on my network list. Can someone please help me ? is it because my rasp pi can not detect the sd card ? --- ## [Fiducial is not following](https://forum.ubiquityrobotics.com/t/fiducial-is-not-following/973)
**Author:** [@deleolubodun](https://forum.ubiquityrobotics.com/u/deleolubodun)\ **Replies:** 3\ **Last updated:** [June 16, 2022, 6:59pm UTC](https://forum.ubiquityrobotics.com/t/fiducial-is-not-following/973 "2022-06-16T18:59:12Z")
My Fiducial is not working is not responding, the camera is working, and when i am in the EZ mapping mode the camera sees the fiducial symbol, but the Magni does not follow me. The symbol is 14cmx14cm. DISTRIB\_ID=Ubunt… --- ## [USB's on motor controller](https://forum.ubiquityrobotics.com/t/usbs-on-motor-controller/972)
**Author:** [@deleolubodun](https://forum.ubiquityrobotics.com/u/deleolubodun)\ **Replies:** 1\ **Last updated:** [June 13, 2022, 8:44am UTC](https://forum.ubiquityrobotics.com/t/usbs-on-motor-controller/972 "2022-06-13T08:44:02Z")
What are the usb’s on the mother board for please? --- ## [libEGL warning :DRI2 failed to authenticate while launching rviz](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522)
**Author:** [@msfarhan123456](https://forum.ubiquityrobotics.com/u/msfarhan123456)\ **Replies:** 7\ **Last updated:** [June 1, 2022, 7:38pm UTC](https://forum.ubiquityrobotics.com/t/libegl-warning-dri2-failed-to-authenticate-while-launching-rviz/522 "2022-06-01T19:38:50Z")
Hello everyone, I’m launching rviz for opening my urdf I’m getting the following error libEGL warning : DRI2: failed to authenticate i have tried this method raspbian - Qt applications don't work due to libEGL - Rasp… --- ## [Offset casters cause problems](https://forum.ubiquityrobotics.com/t/offset-casters-cause-problems/962)
**Author:** [@pitosalas](https://forum.ubiquityrobotics.com/u/pitosalas)\ **Replies:** 2\ **Last updated:** [May 28, 2022, 10:46pm UTC](https://forum.ubiquityrobotics.com/t/offset-casters-cause-problems/962 "2022-05-28T22:46:02Z")
I have a robot that looks like the Ubiquity: differential drive, two powered wheels and two casters offeet casters. I like the stability it gives and that it’s more rugged than a ballbearing-wheel. I works mostly correc… --- ## [How to start using LaMa iris with magni-robot?](https://forum.ubiquityrobotics.com/t/how-to-start-using-lama-iris-with-magni-robot/884)
**Author:** [@tiho\_bg](https://forum.ubiquityrobotics.com/u/tiho_bg)\ **Replies:** 4\ **Last updated:** [May 26, 2022, 2:12pm UTC](https://forum.ubiquityrobotics.com/t/how-to-start-using-lama-iris-with-magni-robot/884 "2022-05-26T14:12:05Z")
Hi, I have installed LaMa iris from here: I made a catkin\_make then. I’ve started creation of a map: rosrun iris\_lama\_ros pf\_slam2d\_ros scan\_topic:=base\_scan Now I would like to create a map using magni robot. Ple… --- ## [Where can I order this charger board?](https://forum.ubiquityrobotics.com/t/where-can-i-order-this-charger-board/961)
**Author:** [@inmoov](https://forum.ubiquityrobotics.com/u/inmoov)\ **Replies:** 1\ **Last updated:** [May 26, 2022, 2:09pm UTC](https://forum.ubiquityrobotics.com/t/where-can-i-order-this-charger-board/961 "2022-05-26T14:09:11Z")
Hi All, The black connector showing in the picture just popped up strangely, where can I order this board to replace please? now it wont charge, I need it urgently thanks --- ## [No Power on Aux or Main Molex Connectors](https://forum.ubiquityrobotics.com/t/no-power-on-aux-or-main-molex-connectors/958)
**Author:** [@z0rak](https://forum.ubiquityrobotics.com/u/z0rak)\ **Replies:** 3\ **Last updated:** [May 18, 2022, 8:18pm UTC](https://forum.ubiquityrobotics.com/t/no-power-on-aux-or-main-molex-connectors/958 "2022-05-18T20:18:42Z")
Hello, we are attempting to power a LIDAR unit from the AUX connector, and I’m not able to measure any voltage on either the AUX or MAIN molex connectors. The indicators for 5V and 12V power are lit. Any troubleshootin… --- ## [Which code routines are handling the shutdown button?](https://forum.ubiquityrobotics.com/t/which-code-routines-are-handling-the-shutdown-button/955)
**Author:** [@FolsomMike](https://forum.ubiquityrobotics.com/u/FolsomMike)\ **Replies:** 2\ **Last updated:** [May 10, 2022, 7:59am UTC](https://forum.ubiquityrobotics.com/t/which-code-routines-are-handling-the-shutdown-button/955 "2022-05-10T07:59:55Z")
I am trying to find the routine which is monitoring the shutdown button (input 6) on the Sonar board. Also, which routine actually generates the system shutdown command? I see where pi\_sonar is using the GPIO signals f… --- ## [Pifi on Focal amd64?](https://forum.ubiquityrobotics.com/t/pifi-on-focal-amd64/896)
**Author:** [@sam\_uk](https://forum.ubiquityrobotics.com/u/sam_uk)\ **Replies:** 4\ **Last updated:** [May 2, 2022, 4:59pm UTC](https://forum.ubiquityrobotics.com/t/pifi-on-focal-amd64/896 "2022-05-02T16:59:31Z")
I really like your Pifi package. Is it possible to install it on a 64 bit Focal? I get an error on your keyserver? ubuntu@ubuntu:~$ sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-key C3032ED8 … --- ## [RTAB-Slam, is it doable on the rpi3?](https://forum.ubiquityrobotics.com/t/rtab-slam-is-it-doable-on-the-rpi3/943)
**Author:** [@inmoov](https://forum.ubiquityrobotics.com/u/inmoov)\ **Replies:** 4\ **Last updated:** [April 30, 2022, 3:17pm UTC](https://forum.ubiquityrobotics.com/t/rtab-slam-is-it-doable-on-the-rpi3/943 "2022-04-30T15:17:08Z")
Hi, I’m wondering is RTAB-Slam (mapping and navigation) doable on the existing raspberri Pi 3 on Magni? or will it struggle and crash? [Previous page](https://forum.ubiquityrobotics.com/latest.md?page=1) [Next page](https://forum.ubiquityrobotics.com/latest.md?page=3)