servo = Servo(board)

if __name__ == "__main__":

# Board begin and check the board's status

while board.begin() != board.STA_OK:

print("Error")

time.sleep(1)

print("Board begin success.")

servo.begin()

# servo control begin

while True:

print("part of servos move to 0°")

servo.move(0, 0) # PWM0

'''

servo.move(1, 0) # PWM1

servo.move(2, 0) # PWM2

servo.move(3, 0) # PWM3

'''

print("part of servos move to 180°")

servo.move(0, 0) # PWM0

'''

servo.move(1, 0) # PWM1

servo.move(2, 0) # PWM2

servo.move(3, 0) # PWM3

'''

print("All servos move between 0°~180°")

for i in range(0, 181):

servo.move(board.ALL, i)

time.sleep(0.008)

time.sleep(0.002)

for i in range(0, 181):

i = 181 - i

servo.move(board.ALL, i)

time.sleep(0.008)

time.sleep(0.002)

In the function servo.move() of the example, the first parameter is the PWM pin of the

expansion board, the second one is rotation degree. The PWM selection list is shown

below:

PWM Pin of IO expansion board

Value of the first parameter

0

0

1

1