# Candle Flicker
# Create a flickering LED connected to pin 16

from machine import Pin, PWM
from time import sleep_ms
import random

red = Pin(16, Pin.OUT)
red16 = PWM(Pin(16))
red16.freq(1000)

def randn():
    x = -6
    for i in range(0,12):
        x += random.random()
    return(x)

while(1):
    x = 32000 + randn()*10000
    red16.duty_u16(int(x))
    sleep_ms(50)