Well, unfortunately, it does not work. Nothing happens. I’ve not used exactly your code, I have the logger block before the lambda block but I cannot imagine that this changes anything.
I also tried adding call_setup() from this post: Dynamically change update_interval - #10 by 0x3333
Then something happens: In every loop run (at least it seems to me) the interval is triggered. In my case this means a direction is changed from forward to reverse.
So, this does not seem to be the right approach, either. 