Month: December 2022
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Lidar Failing to Start – ROS2 and RaspberryPi
Hi everyone, I’m messing around with a diff-drive robot and have been hitting an intermittent issue with my Lidar: This turned out to be a low power issue. The Pi’s voltage had been dropping to about 4.5v as my 12v battery grew a little flat. Recharging the battery immediately fixed the issue. For a more…
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Wheel Going in the Wrong Direction – RVIZ2 and FoxGlove
Hi everyone, I hope you’re having a good break! I’m currently following this tutorial and messing around with a diffdrive robot. After making a few changes I noticed that my simulations were playing up. Strangely, the robot itself was still working perfectly fine. The problem I was having was that even though my robot was…
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ros2 controller manager not available – articubot tutorials
Hey everyone,I’m currently working through a great tutorial series on youtube for ROS2. Unfortunately, I ran into a bit of an issue with a race condition in a launch file. The controller managers were timing out before Gazebo was able to launch. The author offers a suggestion to try using OnProcessExit to work around this…
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RaspberryPi Camera not detected – Ubuntu 20.04.5 LTS
Hi everyone, I ran into a bit of an issue with a RaspberryPi 4 running Ubuntu 20.04.5 this morning. Running vcgencmd get_camera should have returned supported=1 detected=1 but instead I was getting supported=0 detected=0. This was a bit of a hard one to track down with Google but I eventually came across a stackoverflow post…
What I Broke - Programming and Web Development 