# Made by EasyCore github(https://github.com/exsycore)
# Thank link(https://randomnerdtutorials.com/micropython-i2c-lcd-esp32-esp8266/)
# for library i2c lcd
# sorry my english a little bit
# im student at TATC (computer technical 67219090038)

# Library
from time import sleep_ms
from machine import I2C, Pin
from machine_i2c_lcd import I2cLcd

# Wait for ready
sleep_ms(1000) # 1000 = 1 second

def Setup():
    # Setup more pins
    # (global) you can use this variable out of function
    global Button
    global LedRed
    global lcd

    Button   = Pin(0, Pin.IN, Pin.PULL_UP)
    LedRed   = Pin(13, Pin.OUT)
    # Setting Variable for LedRed to 0
    LedRed.value(0)
    # Pointer scan for i2c lcd
    i2c      = I2C(0, scl = Pin(22), sda = Pin(21), freq = 400000)
    lcd_addr = i2c.scan()[0]
    print(f"LCD Pointer: {hex(lcd_addr)}")
    # Setup LCD
    lcd = I2cLcd(i2c, lcd_addr, 2, 16) # 2 = Rows, 16 = Char lenght !!(Setup your LCD)

Setup()

# Function to checking the button
def IsOnButton() -> bool:
    return not Button.value()

# make variable name led_state for checking
led_state = None

# make static string for lcd
lcd.clear() # clear string or text in lcd
lcd.putstr("LED: ") # put string to lcd for output
lcd.move_to(0, 1) # move_to is set cursor
lcd.putstr("Press Button")

# while loop is running always
# if you give "break" in this while loop
# then end while loop now
while True:
    if IsOnButton():
        if led_state != True:
            LedRed.on()
            lcd.move_to(5, 0)
            lcd.putstr("ON ")
            led_state = True
    else:
        if led_state != False:
            LedRed.off()
            lcd.move_to(5, 0)
            lcd.putstr("OFF")
            led_state = False