from machine import Pin
from time import sleep

# Define pins for a to g
segments = [Pin(i, Pin.OUT) for i in range(0, 7)]

# Digits 0–9, segment ON=1, OFF=0 (common cathode logic)
digits = [
    [1,1,1,1,1,1,0],  # 0
    [0,1,1,0,0,0,0],  # 1
    [1,1,0,1,1,0,1],  # 2
    [1,1,1,1,0,0,1],  # 3
    [0,1,1,0,0,1,1],  # 4
    [1,0,1,1,0,1,1],  # 5
    [1,0,1,1,1,1,1],  # 6
    [1,1,1,0,0,0,0],  # 7
    [1,1,1,1,1,1,1],  # 8
    [1,1,1,1,0,1,1]   # 9
]

def display_digit(n):
    for i in range(7):
        segments[i].value(digits[n][i])

while True:
    for num in range(10):
        display_digit(num)
        sleep(1)