Gene Heskett wrote: > ISTR there is a "vcg*" sort of thing to read that stuff, but have lost it > in the fog of time. > > Cheers, Gene Heskett Hi Gene, why not ask on the RPI list - I think you are subscribed there. Actually at the moment there is a discussion around this topic going on. vcgencmd get_throttled https://www.raspberrypi.org/forums/viewtopic.php?t=190584