from machine import Pin, PWM 
from utime import sleep_ms 
import _thread
from neopixel import NeoPixel

np = NeoPixel(Pin(23), 16) 
buzzer = PWM (Pin(14))
for i in range(16):
    np[i]=255,0,0
np.write()

note = {
'a': 392, 'a#': 415, 'b': 440, 'f': 622, 'f#': 659, 'g': 698,
'c': 466, 'C#': 494, 'd': 523, 'd#': 554, 'e': 587, 'g#': 740 }

NOTES=('a', 'a#', 'b', 'c', 'C#', 'd', 'd#','f', 'f#', 'g', 'g#')
buz_pin=14
def freq(note):
    if len(note) ==3:
        octave=int(note[2])
    else:
        octave=int(note[1])
    key_no=NOTES.index(note[:-1])
    if key_no<3:
        key_no=key_no+12+((octave-1)*12)+1
    else:
        key_no=key_no+((octave-1)*12)+1
    return 440* (2**((kry_no-49)/12))
def tone (pin, freq, time):
    buzzer=PWM(Pin(pin), freq=freq, duty=512)
    sleep_ms(time) 
    buzzer.deinit()