# MicroPython + ESP 32 + I2C-LCD-2x16-Modul Teil 2
import machine, time
from machine import Pin, SoftI2C
from lcd_api import LcdApi
from i2c_lcd import I2cLcd

def uhrzeit():
    while True:
        print("Uhrzeit")
        uhrzeit = "| {0:02d}:{1:02d}:{2:02d} |".format(time.localtime()[3],time.localtime()[4],time.localtime()[5])
        print(uhrzeit)

I2C_ADDR = 0x27
totalRows = 2       # zwei Zeilen
totalColumns = 16   # 16 Zeichen je Zeile
SDA_Pin = 21     # D21 -  gelb  - SDA
SCL_Pin = 22     # D22 - orange - SCL
select = Pin(15)
right  = Pin( 2)
down   = Pin( 4)
i2c = SoftI2C(scl=Pin(SCL_Pin), sda=Pin(SDA_Pin), freq=10000) 
lcd = I2cLcd(i2c, I2C_ADDR, totalRows, totalColumns)
lcd.display_on()
lcd.backlight_on()
lcd.putstr("Hauptmenue")
wahl = 0
i=0
imax=3
while True:
    print(select.value())
    if wahl==0:
        lcd.move_to(0,1)    # Zeichen 0, Zeile 2
        lcd.putstr("               ")       
        lcd.move_to(0,1)    # Zeichen 0, Zeile 2
        if i==0:
            lcd.putstr("1 Uhrzeit")
        else:
            if i==1:
                lcd.putstr("2 Stoppuhr")
            else:
                lcd.putstr("3 Counter")
        time.sleep(0.25)
    if select.value()==0:
        if i==0:
            uhrzeit()
        elif i==1:
            stoppuhr()
        else:
            counter()
    i=i+1
    # Anzeige wiederholen
    if i==imax:
       i=0