A prototype robotic arm is constructed using 3 sets of servos as shown in Figure Q4. The 3 servos are respectively implemented for rotating the arm at the base, adjusting the tilt of the arm, and enabling the gripper of the arm. Testing will be performed by manual control using 3 potentiometers connected to the Arduino Uno. To prevent servo damage due to possible servo specification tolerances, the test will be performed with servo angle limited to between 26 to 176 degrees. The potentiometers are configured to provide output voltages between 1.66 V to 4.66V. Demonstrate how this can be accomplished by writing the test program in Arduino C. Apply the proper Arduino C setup and loop structure, present suitable comments with each line of your program, and show any necessary calculations/derivations, and assumptions