Wanted to update the Klipper software for my Ender 3. Has taken most of the morning. Needed to rewrite parts of my printer.cfg file. To do this had quite a lot of maths to do with variables whose values I didn't know. Got round that to find they had changed how to define your own variables for Macro routines. No documentation on how this now works but did find a forum where someone else had the same problem.
Thought all solved now. NO! Error due to mismatch between version on printer and Raspberry Pi. Could not update that as Raspbian Linux system had been updated and needed to find commands to force update. Another forum had that solution.
Lack of full level documentation is a weak point of opensource software, just because the developers are wizards of Linux, Python and gcode does not mean everyone else knows it all. Need to put in references to underlying syntax and commands.
Success (I hope)
Recv: ok FIRMWARE_VERSION:v0.10.0-426-gaf38d708 FIRMWARE_NAME:Klipper
