import time
import machine

hex_numbers = [
    0xC0, #0  
    0xF9, #1
    0xA4, #2
    0xB0, #3
    0x99, #4
    0x92, #5
    0x82, #6
    0xF8, #7
    0x80, #8
    0x90  #9
]

segments = []
selection_digits = []
adc = machine.ADC(machine.Pin(26))

def initialize():
    global segments, selection_digits

    segments = []
    for i in range(7):
        segments.append(machine.Pin(i, machine.Pin.OUT))
        segments[i].value(1)

    selection_digits = [] 
    for j in range(8, 12):
        selection_digits.append(machine.Pin(j, machine.Pin.OUT))
        selection_digits[j-8].value(0)

dp = machine.Pin(7, machine.Pin.OUT)

def scan_value(num):
    global selection_digits
    for x in range(4):
        display_value(int(num % 10))
        selection_digits[x].value(1) 
        time.sleep(0.01)
        selection_digits[x].value(0) 
        num /= 10

        
def display_value(num):
    global segments, selection_digits
    for i in range(7):
        for d in selection_digits:
            d.value(0)
        value = (1 << i) & hex_numbers[num]
        segments[i].value(value)




if __name__ == '__main__':
    initialize()
    while True:
        adc_value = adc.read()
        for i in range(10, 201, 10):
            for _ in range(20):  
                scan_value(adc_value)
        
        print(adc_value)