buzzer_music

Play thousands of songs on your Raspberry Pi Pico with a buzzer

Micropython library to play music through a buzzer, automatically replaces chords with fast arpeggios to simulate polyphony. Music can be easily taken from onlinesequencer.net

Also supports playing music through multiple buzzers, dividing the currently playing notes across them for polyphony

Online Simulator

See it working or test it out using this online simulator! One Buzzer | Multiple Buzzers

Demo.mp4

Usage with RPi Pico / Other Micropython Board

1. Connect your buzzer to a ground pin and pin 0 on your Pico
2. Install micropython on your Pico and copy the files in this repository to it
3. Find some music on onlinesequencer.net (music aligned to the grid works best), click edit, select all notes with CTRL + A and then copy them with CTRL + C
4. Paste the string in place of the one in the example file, making sure to remove the "Online Sequencer:120233:" from the start and the ";:" from the end

You can pause and resume with mySong.stop() and mySong.resume()

Board Compatibility

Board	Compatible?
Raspberry Pi Pico	Yes
Wemos D1 mini (ESP8266)	Yes i8
Raspberry Pi 3, 4	Follow steps below
ESP32	Yes i14

Raspberry Pi 3, 4 Compatibility

The following code was contributed by @Miniontoby in i10, simply create a file called machine.py in the same folder as the other files and put this code in it:

import RPi.GPIO as GPIO
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)

class PWMchanged(GPIO.PWM):
    def __init__(self, chan, freq):
        super().__init__(chan, freq)
        self.start(freq)
    def duty(self,dutycycle): self.ChangeDutyCycle(dutycycle/65535)
    def freq(self, value): self.ChangeFrequency(value)
    def deinit(self): self.stop()
    pass

def PWM(pin):
    GPIO.setup(pin, GPIO.OUT) # Just to make sure
    return PWMchanged(pin, 50)

def Pin(pin):
    GPIO.setup(pin, GPIO.OUT)
    return pin