import machine
import math
import time
from machine import ADC,Timer,pin

display_value = 0
seven_segment_pins = [machine.Pin(i,machine.Pin.OUT)for i in range]
dp_pin =machine.Pin(7.machine.Pin.OUT)
seven_segment_digit_pins = (machine.Pin(i,machine.Pin.OUT)for i in range[8,12])
adc_pin = machine.ADC(28)
button_pin = machine.Pin(16,machine.Pin.IN,machine.Pin.pull_up)
seven_segment_timer = machine.Timer(-1)
seven_segments_values =  [    
    0xC0,
    0xF9,
    0xA4,
    0xB0,
    0x99,
    0x92,
    0x82,
    0xF8,
    0x80,
    0x90,
    ]
def read_analogue_voltage(pin):

def disable_display_timer():

def enable_display_timer():

def scan_display(timer_int):
    global display_value
    value = display_value
    for i in range (4):
        digit = value % 10
        dp_enable = i ==3
        display_digit = (digit,i,dp_enable)
        value = value //10
def display_digit(digit_value, digit_index, dp_enable=False):
    for i in range (4):
        seven_segment_digit_pins[i].value(0)
    for i in range(7):
        seven_segment_pins[i].value((seven_segments_values[digit]>>i)& 0x01)

    dp_pin.value(not dp_enable)
    seven_segment_digit_pins[digit_index].value(1)
def display_value_test():

def setup():

if __name__ == '__main__':
    setup()