from machine import Pin
from utime import sleep
 
seg_A = 15
seg_B = 2
seg_C = 4
seg_D = 5
seg_E = 18
seg_F = 19
seg_G = 21
segments = [Pin(seg_A, Pin.OUT), Pin(seg_B, Pin.OUT),Pin(seg_C, Pin.OUT),
Pin(seg_D, Pin.OUT),Pin(seg_E, Pin.OUT),
Pin(seg_F, Pin.OUT),Pin(seg_G, Pin.OUT)  ]
 
signals = (
(0,0,0,0,0,0,1),  
(1,0,0,1,1,1,1),  
(0,0,1,0,0,1,0),
(0,0,0,0,1,1,0),
(1,0,0,1,1,0,0),
(0,1,0,0,1,0,0),
(0,1,0,0,0,0,0),
(0,0,0,1,1,1,1),
(0,0,0,0,0,0,0),
(0,0,0,0,1,0,0)  
 )
start_button = Pin(17, Pin.IN)
def clear():
    for seg in segments:
        seg.value(1)
clear()
while True:
    if start_button.value():
        for number in range(10):
            for i in range(len(segments)):
                segments[i].value(signals[number][i])
            sleep(1)        
        for number in range(9, -1, -1):
            for i in range(len(segments)):
                segments[i].value(signals[number][i])
            sleep(1)