from machine import Pin
import time

a = Pin(14, Pin.OUT)
b = Pin(12, Pin.OUT)
c = Pin(25, Pin.OUT)
d = Pin(26, Pin.OUT)
e = Pin(27, Pin.OUT)
f = Pin(32, Pin.OUT)
g = Pin(33, Pin.OUT)

while True:
    a.value(0)
    b.value(0)
    c.value(0)
    d.value(0)
    e.value(0)
    f.value(0)
    g.value(0)
    time.sleep(1)
    a.value(1)
    b.value(1)
    c.value(1)
    d.value(1)
    e.value(1)
    f.value(1)
    g.value(1)
    time.sleep(1)