Tony is a Geek

Continuing my ongoing quest to see if I can get anything from ROS2 and a small Lidar device ( I just found a YT video of a very young person, maybe 12? that, of course, got this working using Rviz2 in about 8minutes, pfhh... guess my technical days are numbered?! ) However, not to be deterred, I am choosing to do this the "hard way", ie. I want to see RAW data, I want to see the values being spat out of the Lidar, I want to see the numbers - I then want to record that or process it on the fly - yes, I know that RViz2 will do that, but I want to be able to use it for some autonomous sensor usage, ie. make the thing self-drive & navigate.  Maybe I should search YT to follow another 12year old that has already done that already? Anyway, I suppose it's a bit like sitting on a couch in your socks & pants, eating biscuits, watching p0rn on the TV, saying, "yeah, I can do that", "that's easy, anyone can do it" - but IRL, it's somewhat more com...

of course I got one.  It was on pre-order with thepihut.com (actually this one was registered to Mrs.IsAGeek - but shhhh!), I missed my one being delivered as I was "out" and they wanted it signed for..that will arrive on Monday, that one is the 8GB version with the new PSU and fan... What can I say?  Well...I had a minor niggle out-of-the-box that I'll cover here. I went to here:  https://www.raspberrypi.com/software/operating-systems/#raspberry-pi-os-64-bit I downloaded this file:  https://downloads.raspberrypi.com/raspios_arm64/images/raspios_arm64-2023-10-10/2023-10-10-raspios-bookworm-arm64.img.xz I burnt it to an SD-Card: Stuck the SD-Card into the device, booted it up and was shown some looping time out issues and errors. I thought that the SD-Card was at fault? So I did it a few times, even used another SD-Card. Then I actually read the prompt on the screen - It was complaining that a specific RPi-5.dtd file was missing, nope there it was in the main folder,...