Include 3 for() loop

Now program will:
1. Read all the sensors x 5 fingers
2. Calculate its angle x 5 fingers
3. Write this angle x 5 finguers

Old methos make all those steps for 1 finger, and then start again for
the 2nd finger.
Get back delay function

It was missed on last commit, always welcomed to refrierate system
between a whole written of the 5 sensors.