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01_sound.ipynb
Running the cell code

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import rospy
from std_msgs.msg import Int32MultiArray

Import the rospy module
Import Int32MultiArray from std_msgs.msg module

sound = Int32MultiArray()

Set sound variable as Int32MultiArray() Message Type

def play(number):
    sound.data=[1,number]

Create play(number) function
Specify the data of the sound message in [1,number] format

def sounds():
    sound_pub = rospy.Publisher('robot_sound',Int32MultiArray, queue_size=1)
    try:
        number = input("0~9 까지 중 골라주세요")
        play(number)
        sound_pub.publish(sound)
        rospy.sleep(2)
    except Exception as ex:
        print(ex)


def start_node():
    rospy.init_node('zetabot')
    while True:
        sounds()
    rospy.spin()
try:
    start_node()
except rospy.ROSInterruptException as err:
    print(err)

Create the sounds() function
Create robot_sound Topic Publisher
Get user input into number variable
Execute the play(number) function
sound Message Publish
2 second time delay and exception handling
Create start_node() function
Create zetabot Node
runs the sounds() function
start_node() function execution and exception handling