Clamping Negative Float

I have made something similar to speedometer. Where angle sets from 0.1 (left side) to -0.1 (right side). Am trying to make a smooth animation update in blueprint. When the collision box is activated value goes at (6) look first picture. After battery gets 100% value show (15 look first picture). I want to slowly update that scalar parameter with progress and all pictures below:

You don’t need the lerp there, you might as well just plug the parameter into the rotator.

You might find you get a pretty good needle movement using finterp:

Value of Current charge is from 0 to 100 and scalar parameter goes from 0.1 to -0.1. “Finterp” won’t work with my function because I don’t run delta time I am setting timer function every 1s. Any other idea?

If you want to do it that way, then

That helped, thank you so much!