Programming Pygame Zero to make images move and play sounds

Pygame Zero open a window and draw a circle code in Mu:

# size of the window that opens
WIDTH = 800
HEIGHT = 600
# this function is called 60 times per second
def draw():
   screen.clear()
   screen.draw.circle((400, 300), 30, 'white')

Pygame Zero draw eyes that follow the mouse code in Mu:

import math
import pygame
WIDTH = 600
HEIGHT = 600
def update():
   pass
def draw():
   screen.fill((0, 0, 0))
   def draw_eye(eye_x, eye_y):
       mouse_x, mouse_y = pygame.mouse.get_pos()
       screen.draw.text('x: ' + str(mouse_x)+ '\n' + 'y: ' + str(mouse_y),(0, 0))
       distance_x = mouse_x - eye_x
       distance_y = mouse_y - eye_y
       distance = min(math.sqrt(distance_x**2 + distance_y**2), 30)
       angle = math.atan2(distance_y, distance_x)
       pupil_x = eye_x + (math.cos(angle) * distance)
       pupil_y = eye_y + (math.sin(angle) * distance)
       screen.draw.filled_circle((eye_x, eye_y), 50, color=(255, 255, 255))
       screen.draw.filled_circle((pupil_x, pupil_y), 15, color=(0, 0, 100))
   draw_eye(WIDTH/3, HEIGHT/2)
   draw_eye(WIDTH*2/3, HEIGHT/2)

Pygame Zero draw the mouse position as text code in Mu:

import pygame
import math
WIDTH = 600
HEIGHT = 600
def update():
   pass
def draw():
   screen.fill((0, 0, 0))
   def draw_mouse(x,y):
       screen.draw.text('x: ' + str(x)+ '\n' + 'y: ' + str(y),(0, 0))
       screen.draw.filled_circle((x, y), 10, color=(255, 0, 0))
   mouse_x, mouse_y = pygame.mouse.get_pos()
   draw_mouse(mouse_x, mouse_y)

Pygame Zero Piano code in Mu:

WIDTH = 400
HEIGHT = 300
beep_a = tone.create('E3', 0.1)
beep_s = tone.create('D3', 0.1)
beep_d = tone.create('C3', 0.1)
# this function is called when a keyboard key is pressed down
def on_key_down(key):
   if key == keys.A:
       beep_a.play()
   if key == keys.S:
       beep_s.play()
   if key == keys.D:
       beep_d.play()
def draw():
   screen.fill((0, 0, 0)) # a black background, (red, green, blue)

Pygame Zero open a serial port and draw the number received code in Mu:

import serial
ser = serial.Serial('/dev/tty.usbmodem1101') # the name of your port here
print('Opening port: ' + str(ser.name))
import pygame
WIDTH = 600
HEIGHT = 600
n1_int = 0
n2_int = 0
def update():
   n_bytes = ser.readline() # read all the letters available
   s = str(n_bytes) # turn them into a str
   result1 = s[s.find('(')+1:s.find(',')] # find everything beween ( and ,
   result2 = s[s.find(',')+1:s.find(')')] # find everything between , and )
   global n1_int
   n1_int = int(result1) # convert str to int
   global n2_int
   n2_int = int(result2)
def draw():
   screen.fill((0, 0, 0))
   screen.draw.text('a0: ' + str(n1_int)+ '\n' + 'a1: ' + str(n2_int),(0, 0))

and the code that would run on the Pico to send the data:

import time # for time.sleep()
import board # for pin names
import analogio # for adc

a0 = analogio.AnalogIn(board.A0) # read the voltage on A0
a1 = analogio.AnalogIn(board.A1) # read the voltage on A1

while 1:
    print("("+str(a0.value)+","+str(a1.value)+")")
    time.sleep(1/30) # print out 30 times per second