import random
from machine import Pin
from utime import sleep

# initialize leds
led = [1, 2, 3, 4, 5, 6, 7, 8]
g = Pin(4, Pin.OUT)
r = Pin(5, Pin.OUT)
# add port nos. according to your model
port = [6, 7, 8, 9, 10, 11, 12, 13]
# implement Pin function to your leds to make them blinkable
def conf_port():
    for i in range (8):
        led[i] = Pin(port[i], Pin.OUT)

# recieve one digit and convert to binary, returns the list
def dec_2_bin(n):
    s = [0, 0, 0, 0, 0, 0, 0, 0]
    for i in range (len(s)):
        s[len(s)-1-i] = n % 2
        n //= 2
    return s

def is_prime(n):
    for i in range (2, n):
        if i % 2 == 0:
            return False
    return True


# call this to make leds start working
conf_port()

while True:
    # generate random number
    num = random.randint(0, 255)
    # convert that number to binary
    s = dec_2_bin(num)

    # using loop turn on leds according to values in list "s"
    for i in range (8):
        led[i].value(s[i])
    print(num,":",s)
    

    if is_prime(num):
        g.on()
        sleep(1)
        g.off()
    else:
        r.on()
        sleep(1)
        r.off()

    sleep(4)