from machine import Pin, Timer
from time import sleep

class Siebensegment:
    def __init__(self, digitPinLst, segPinLst, freq=100):
        self.dig = [0, 0, 0, 0]
        for i in range(4):
            self.dig[i] = Pin(Pin(digitPinLst[i]), Pin.OUT)
        self.a = Pin(segPinLst[0], Pin.OUT)
        self.b = Pin(segPinLst[1], Pin.OUT)
        self.c = Pin(segPinLst[2], Pin.OUT)
        self.d = Pin(segPinLst[3], Pin.OUT)
        self.e = Pin(segPinLst[4], Pin.OUT)
        self.f = Pin(segPinLst[5], Pin.OUT)
        self.g = Pin(segPinLst[6], Pin.OUT)
        self.dp = Pin(segPinLst[7], Pin.OUT)
        self.freq = 4*freq
        self.dp.on()
        self.stelle = 0
        self.clear()
        self.dppos = -1
        Timer(freq=self.freq, callback=self.multiplex)

    def multiplex(self, event):
        self.dig[self.stelle].off()
        self.stelle = (self.stelle+1) % 4
        if self.dppos == self.stelle:
            self.dp.off()
        else:
            self.dp.on()
        self.__setpins(self.anzeige[self.stelle])
        self.dig[self.stelle].on()

    def clear(self):
        self.anzeige = ' '*4

    def show(self, anzeige):
        if type(anzeige) in [int, float]:
            anzeige = str(anzeige)
        if '.' in anzeige:
            anzeige = ' '*(5-len(anzeige)) + anzeige
            self.dppos = anzeige.index('.')
            anzeige = anzeige.replace('.','')
            self.dppos -= 1
        else:
            anzeige = ' '*(4-len(anzeige)) + anzeige
        self.anzeige = anzeige

    def __setpins(self, ziffer):
        if ziffer in '02356789aACeEfFpPOsS':
            self.a.off()
        else:
            self.a.on()

        if ziffer in '01234789aAdDHpPUOyY':
            self.b.off()
        else:
            self.b.on()

        if ziffer in '013456789aAbBdDhHnNouUOsSyY':
            self.c.off()
        else:
            self.c.on()

        if ziffer in '0235689bBcCdDeElLouUOsStTyY':
            self.d.off()
        else:
            self.d.on()

        if ziffer in '0268aAbBcCdDeEfFhHlLnNopPrRuUOtT':
            self.e.off()
        else:
            self.e.on()

        if ziffer in '045689aAbBCeEfFhHlLpPUOsStTyY':
            self.f.off()
        else:
            self.f.on()

        if ziffer in '-2345689aAbBcdDeEfFhHnNopPrRsStTyY':
            self.g.off()
        else:
            self.g.on()

digits = [21, 18, 17, 15]
segments = [20, 16, 13, 11, 10, 19, 14, 12]
disp = Siebensegment(digits, segments, freq=100)
disp.show('LUPO')
sleep(3)
disp.clear()
sleep(1)
while True:
    for i in range(-99, 9999):
        disp.show(f'{i/10:.1f}')
        sleep(.1)