Modular Display Clock

def set_mode():
    global set_enable
    set_enable = pins.digital_read_pin(DigitalPin.P1)
    if set_enable == 0:
        pass
    else:
        basic.show_string("+")

def on_button_pressed_a():
    global set_hr
    if set_enable == 1:
        set_hr += 1
        if set_hr > 23:
            set_hr = 0
        basic.show_number(set_hr)
input.on_button_pressed(Button.A, on_button_pressed_a)

def pixel_time():
    global step, segment_value, digit, inc
    step = 3
    # Number of 7 segment units
    index = 0
    while index <= displays - 1:
        segment_value = parse_float(time.substr(step, 1))
        if index == 3 and msb == 1:
            segment_value = 10
        digit = segment_list[segment_value]
        inc = index * (LED_SEG * 7)
        # segment status 1=on, 0=off
        for value in digit:
            # Number of LED's per segment
            for index2 in range(LED_SEG):
                if parse_float(value) == 1:
                    strip.set_pixel_color(inc, neopixel.colors(NeoPixelColors.RED))
                else:
                    strip.set_pixel_color(inc, neopixel.colors(NeoPixelColors.BLACK))
                inc += 1
        strip.show()
        step += -1
        index += 1
    basic.pause(1000)
def settime():
    DS3231.date_time(2020, 2, 15, 4, set_hr, set_min, 0)
    basic.show_number(set_hr)
    basic.pause(500)
    basic.show_number(set_min)
    basic.pause(500)

def on_button_pressed_ab():
    if set_enable == 1:
        settime()
input.on_button_pressed(Button.AB, on_button_pressed_ab)

def Time_split(num: number, num2: number):
    global msb, hr_time, min_time, time
    msb = 0
    basic.show_number(num)
    basic.pause(500)
    basic.show_number(num2)
    basic.pause(500)
    if num < 10:
        msb = 1
        hr_time = "0" + convert_to_text(num)
    else:
        hr_time = convert_to_text(num)
    if num2 < 10:
        min_time = "0" + convert_to_text(num2)
    else:
        min_time = convert_to_text(num2)
    time = "" + hr_time + min_time

def on_button_pressed_b():
    global set_min
    if set_enable == 1:
        set_min += 1
        if set_min > 59:
            set_min = 0
        basic.show_number(set_min)
input.on_button_pressed(Button.B, on_button_pressed_b)

inc = 0
digit = ""
msb = 0
segment_value = 0
step = 0
set_min = 0
set_hr = 0
set_enable = 0
time = ""
min_time = ""
hr_time = ""
LED_SEG = 0
displays = 0
segment_list: List[str] = []
strip: neopixel.Strip = None
strip = neopixel.create(DigitalPin.P0, 56, NeoPixelMode.RGB)
strip.clear()
strip.show()
basic.show_string("lclk")
basic.pause(1000)
# Segment assignments for numbers 0 to 9
segment_list = ["0111111",
    "0000110",
    "1011011",
    "1001111",
    "1100110",
    "1101101",
    "1111101",
    "0000111",
    "1111111",
    "1101111",
    "0000000"]
# Number of 7 segment displays
displays = 4
# Number of LED's per segment
LED_SEG = 2
hr_time = ""
min_time = ""
time = ""
set_enable = 0
set_hr = 0
set_min = 0

def on_forever():
    set_mode()
    if set_enable == 0:
        Time_split(DS3231.hour(), DS3231.minute())
        pixel_time()
        basic.clear_screen()
basic.forever(on_forever)