Ok then, if there is interest, let's start by choosing a standard chip, I have a few kind digital and analog output, to collect raw force data, then we can put them in some equation, code, to start with.

2aΔs= v_{f}^{2} - v_{i}^{2}

v_{i}^{2}= v_{f}^{2} - 2aΔs

v_{f}^{2} = v_{i}^{2} + 2aΔs

Δs= (v_{f}^{2} - v_{i}^{2}) ÷ 2a

a = (v_{f}^{2} - v_{i}^{2}) ÷ 2Δs

Where

*a* is the acceleration, Δs the space within where

*a* happen,

*v*_{f} the final velocity and

*v*_{i} the initial velocity.

From those simple elements, we can deduce lots of stuff.