PRESTO WiFi demo

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If you look at the schematic it is on GPIO pin 43

I tried changing this demo from Cytronic but it is very quiet (much to the delight of my wife, who hates computer generated ‘tunes’.)

###  This example code uses: Maker Pi Pico ;; Reference: www.cytron.io/p-maker-pi-pico

import machine
import utime
from pitches import *

# Melody Mario

#buzzer = machine.PWM(machine.Pin(18))  # set pin 18 as PWM OUTPUT

buzzer = machine.PWM(machine.Pin(43))  # set pin 43 as PWM OUTPUT PRESTO

# mario notes
mario = [E7, E7, 0, E7, 0, C7, E7, 0, G7, 0, 0, 0, G6, 0, 0, 0, C7, 0, 0, G6, 0, 0, E6, 0, 0, A6, 0, B6, 0, AS6, A6, 0, G6, E7, 0, G7, A7, 0, F7, G7, 0, E7, 0,C7, D7, B6, 0, 0, C7, 0, 0, G6, 0, 0, E6, 0, 0, A6, 0, B6, 0, AS6, A6, 0, G6, E7, 0, G7, A7, 0, F7, G7, 0, E7, 0,C7, D7, B6, 0, 0]

for i in mario:
    if i == 0:
        buzzer.duty_u16(0)            # 0% duty cycle
    else:
        buzzer.freq(i)                # set frequency (notes)
    #    buzzer.duty_u16(19660)        # 30% duty cycle
        buzzer.duty_u16(60000)        # Louder - but not much
    utime.sleep(0.15)

It needs the following stored library, pitches.py:

B0  = 31
C1  = 33
CS1 = 35
D1  = 37
DS1 = 39
E1  = 41
F1  = 44
FS1 = 46
G1  = 49
GS1 = 52
A1  = 55
AS1 = 58
B1  = 62
C2  = 65
CS2 = 69
D2  = 73
DS2 = 78
E2  = 82
F2  = 87
FS2 = 93
G2  = 98
GS2 = 104
A2  = 110
AS2 = 117
B2  = 123
C3  = 131
CS3 = 139
D3  = 147
DS3 = 156
E3  = 165
F3  = 175
FS3 = 185
G3  = 196
GS3 = 208
A3  = 220
AS3 = 233
B3  = 247
C4  = 262
CS4 = 277
D4  = 294
DS4 = 311
E4  = 330
F4  = 349
FS4 = 370
G4  = 392
GS4 = 415
A4  = 440
AS4 = 466
B4  = 494
C5  = 523
CS5 = 554
D5  = 587
DS5 = 622
E5  = 659
F5  = 698
FS5 = 740
G5  = 784
GS5 = 831
A5  = 880
AS5 = 932
B5  = 988
C6  = 1047
CS6 = 1109
D6  = 1175
DS6 = 1245
E6  = 1319
F6  = 1397
FS6 = 1480
G6  = 1568
GS6 = 1661
A6  = 1760
AS6 = 1865
B6  = 1976
C7  = 2093
CS7 = 2217
D7  = 2349
DS7 = 2489
E7  = 2637
F7  = 2794
FS7 = 2960
G7  = 3136
GS7 = 3322
A7  = 3520
AS7 = 3729
B7  = 3951
C8  = 4186
CS8 = 4435
D8  = 4699
DS8 = 4978

Cannot find any other info at the moment.

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