Bus Track Version 2:  

In this version, fewer thing you can adjust but can affect the whole process.

Compared to version 1, you can adjust the number of phases you need for the alert from 2 to 10 (default: 3)

And the speed of the motor in different phase will perform differently according to the phase number you set by multiply (phasenum/i)

Tips: The time every phase remain after motor performs will be calculate by the function: pow (1/2, i+1) *timelef*minite - (delay1*(phasenum/i)) which can automatically make up the time to every phase should last.