import time
from grove.gpio import GPIO
import RPi.GPIO as rGPIO

led = GPIO(5, GPIO.OUT)
button = GPIO(6, GPIO.IN)

# create PWM instance
pwm = rGPIO.PWM(12, 10) # pin 12
pwm.start(0) 
# 1000 Hz sound
pwm.ChangeFrequency(1000)
pwm.ChangeDutyCycle(100)

while True:
    if button.read():
        led.write(1)
    else:
        led.write(0)
    time.sleep(0.1)