Now that the system is build and the vibration motors are all working well, I have added serial control so that I can have an external device tell the arduino when to activate the motors. For this prototype I am going to add a Raspberry Pi Zero W which will communicate with the Arduino via serial and give it commands of when to activate the motors. My arduino is setup so when it gets an "R" , "C" or "L" on the serial port it will activate the right center or left vibration motor respectively. The arduino code is uploaded. A python example is shown below for controlling it from my windows machine.
import serial s = serial.Serial('COM4') s.write('R') #Activate Right Motor s.write('L') #Activate Left motor s.write('C') #Activate Center Motor s.write('RRCCLLLLCCRRCCLLLLCCRR') #Back Massage s.write('0') # Off