SJ Cam 4000, a GoPro clone but nothing like so expensive.
similar cameras are available, some very cheap. But not all have time
lapse. I wasted money (under £20) on one that didn't have time lapse,
my main reason for getting it. None give High Def images but perfectly
adeque for the intended use.
those clever people who can spell SmartPhone, I believe that these
things can have an "app" to make time lapse. I don't have a SmartPhone,
just a StupidPhone that makes and receives telephone calls but does nothing else.
Today's (23rd) skies looked interesting but until I see the time lapse later, I
am unsure if the clouds were entirely lee wave or convective - probably
a mixture of the two.