# Super Mario Brothers (take 2)
# Play the opening notes for Super Mario Brothers

from time import sleep_ms
from machine import Pin, PWM

Spkr = PWM(Pin(18))

def Init():
   Spkr.freq(100)
   Spkr.duty_u16(0)
   
def Play(Hz, Eighths):
    if(Hz > 0):
        Spkr.freq(int(Hz))
        Spkr.duty_u16(32768)
    else:
        Spkr.duty_u16(0)
    sleep_ms(75 * Eights - 50)
    Spkr.duty_u16(0)
    sleep_ms(50)

G3 = 195
A3 = 220
B3 = 233
C4 = 262
D4 = 277
E4 = 330
F4 = 349
G4 = 392
A4 = 440
B4 = 494

Notes   =  [E4, E4, E4, 0, C4, E4, G4, 0, G3, 0]
Dur     =  [2,  2,  4,  2,  2,  4,  4, 4,  4, 4]

def Play_Tune():
    for i in range(0, len(Notes)):
        Play(Notes[i], Dur[i])
    
Init()    
while(1):
    Play_Tune()
    time.sleep(1)