Hi guys. I'm trying to make an analog counter like an odometer. Aharon Rabinowitz made a great poscast on that subject. But the way it's made, the decade number has an expression that it goes 1/10 the speed of the units number. The hundred number is 1/10 the speed of the decade number and so on.
What I'm looking for is an expression that make the decade number change between number 9 and 0 of the unit number. Each time the unit number switch from 9 to 0, the decade number increments of one.
I hope it's clear for you. English is not my first language.