[Digi-Key FollowMe Issue 3] Task 3: Control the buzzer to play music | refresh animation

alanlan86 · Published on 2023-11-18 20:40

[Digi-Key FollowMe Issue 3] Task 3: Control the buzzer to play music | refresh animation [Copy link]

<i class="pstatus">This post was last edited by alanlan86 on 2023-11-18 20:41</i> #Preparation- ESP32-C3 XIAO and an expansion board![](https://files.seeedstudio.com/wiki/XIAO_WiFi/board-pic.png) - "Accident"/story: Because my onboard chip ETA6003 is broken :Onion-3:, the hot air gun also ruined the SSD1306 OLED during maintenance, so I can only use the external OLED SSD1306 small board from Follow Me 1 - After the XIAO's micropython firmware is refreshed and built, you can use Thonny IDE to start it. - Reference example code: [ESP32-C3 XIAO Micropython Getting Started](https://wiki.seeedstudio.com/XIAO_ESP32C3_MicroPython/ "ESP32-C3 XIAO Micropython Getting Started") #Hardware##Buzzer playing music - The buzzer is active, so it can make a sound when it is powered on. Use PWM to drive the buzzer, and different frequencies and rhythms make up the music played. ##OLED animation - The SSD1306 OLED screen is driven by I2C, SCL=7, SDA=6, and power supply GND and VCC are provided. - The driver library of SSD1306 is relatively easy to obtain. #Software - In terms of software functions, OLED animation and buzzer music are integrated. ```python import time import machine from machine import Pin, SoftI2C import ssd1306 import math # Buzzer settings buzzer_pin = machine.Pin(5, machine.Pin.OUT) buzzer = machine.PWM(buzzer_pin) buzzer.freq(1047) # Defining frequency of each music note NOTE_C4 = 262 NOTE_D4 = 294 NOTE_E4 = 330 NOTE_F4 = 349 NOTE_G4 = 392 NOTE_A4 = 440 NOTE_B4 = 494 NOTE_C5 = 523 NOTE_D5 = 587 NOTE_E5 = 659 NOTE_F5 = 698 NOTE_G5 = 784 NOTE_A5 = 880 NOTE_B5 = 988 # Music notes of the song, 0 is a rest/pulse notes = [ NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0, NOTE_A4, NOTE_G4, NOTE_A4, 0, NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0, NOTE_A4, NOTE_G4, NOTE_A4, 0, NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_C5, NOTE_D5, NOTE_D5, 0, NOTE_D5, NOTE_E5, NOTE_F5, NOTE_F5, 0, NOTE_E5, NOTE_D5, NOTE_E5, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, NOTE_D5, NOTE_E5, NOTE_A4, 0, NOTE_A4, NOTE_C5, NOTE_B4, NOTE_B4, 0, NOTE_C5, NOTE_A4, NOTE_B4, 0, NOTE_A4, NOTE_A4, #Repeat of first part NOTE_A4, NOTE_B4, NOTE_C5, NOTE _C5, 0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0, NOTE_A4, NOTE_G4, NOTE_A4, 0, NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0, NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0, NOTE_A4, NOTE_G4, NOTE_A4, 0, NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0, NOTE_A4, NOTE_C5, NOTE_D5, NOTE_D5, 0, NOTE_D5, NOTE_E5, NOTE_F5, NOTE_F5, 0, NOTE_E5, NOTE_D5, NOTE_E5, NOTE_A4, 0, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C 5, 0, NOTE_D5, NOTE_E5, NOTE_A4, 0, NOTE_A4, NOTE_C5, NOTE_B4, NOTE_B4, 0, NOTE_C5, NOTE_A4, NOTE_B4, 0, #End of Repeat NOTE_E5, 0, 0, NOTE_F5, 0, 0, NOTE_E5, NOTE_E5, 0, NOTE_G5, 0, NOTE_E5, NOTE_D5, 0, 0, NOTE_D5, 0, 0, NOTE_C5, 0, 0, NOTE_B4, NOTE_C5, 0, NOTE_B4, 0, NOTE_A4, NOTE_E5, 0, 0, NOTE_F5, 0, 0, NOTE_E5, NOTE_E5, 0, NOTE_G5, 0, NOTE_E5, NOTE_D5, 0, 0, NOTE_D5, 0, 0 , NOTE_C5, 0, 0, NOTE_B4, NOTE_C5, 0, NOTE_B4, 0, NOTE_A4 ] # Durations (in ms) of each music note of the song # Quarter Note is 250 ms when songSpeed = 1.0 durations = [ 125, 125, 250, 125, 125, 125, 125, 250, 125, 125, 125, 125, 250,125, 125,
    125, 125, 375, 125,

125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 375, 125,

125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 125, 250, 125,

125, 125, 250, 125, 125,
    250, 125, 250, 125,
    125, 125, 250, 125, 125,
    125, 125, 375, 375,

250, 125,
    #Rpeat of First Part
    125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 375, 125,

125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 375, 125,

125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 125, 250, 125,

125, 125, 250, 125, 125,
    250, 125, 250, 125,
    125, 125, 250, 125, 125,
    125, 125, 375, 375,
    #End of Repeat

250, 125, 375, 250, 125, 375,
    125, 125, 125, 125, 125, 125, 125, 125, 375,
    250, 125, 375, 250, 125, 375,
    125, 125, 125, 125, 125, 500,

250, 125, 375, 250, 125, 375,
    125, 125, 125, 125, 125, 125, 125, 125, 375,
    250, 125, 375, 250, 125, 375,
    125, 125, 125, 125, 125, 500
]
        
# ESP32-C3 Pin assignment
i2c = SoftI2C(scl=Pin(7), sda=Pin(6))  # Adjust the Pin numbers based on your connections
oled_width = 128
oled_height = 64
oled = ssd1306.SSD1306_I2C(oled_width, oled_height, i2c)

center_x = oled_width // 2
center_y = oled_height // 2
square_size = 6  # Size of each square
num_squares = 12  # Number of squares
angle_increment = 2 * math.pi / num_squares

total_notes = len(notes)
num = 0

while True:
    #play song
    for i in range(total_notes):
        current_note = notes<i>
        wait = durations<i>
        if current_note != 0:
            buzzer.duty(512)  # Set duty cycle for sound
            buzzer.freq(current_note)  # Set frequency of the note
        else:
            buzzer.duty(0)  # Turn off the sound
        time.sleep_ms(wait)
        buzzer.duty(0)  # Turn off the sound
        
        oled.fill(0)  # Clear the screen

num = num + 1
        if (num > num_squares):
            num = 0

angle = num * angle_increment
        x = int(center_x + (center_x - square_size-30) * math.cos(angle))
        y = int(center_y + (center_x - square_size-30) * math.sin(angle))
        
        # Draw all squares
        for j in range(num_squares):
            angle_j = j * angle_increment
            x_j = int(center_x + (center_x - square_size-30) * math.cos(angle_j))
            y_j = int(center_y + (center_x - square_size-30) * math.sin(angle_j))
            
            oled.fill_rect(x_j, y_j, square_size, square_size, 1)  # Draw the square
        
            oled.fill_rect(x, y, square_size, square_size, 0)  # Erase the current square
    
        oled.show()
        #time.sleep_ms(100)  # Pause before next iteration

```
#调试

<div id="player_1d4d2a28d5d852fa4ef7ab872475abfb0" class="localvideo-box"></div><div class="localvideo-title">任务3播放音乐</div>125, 125, 250, 125, 125,
    125, 125, 250, 125, 125,
    125, 125, 375, 125,