def begin():
global LCD
LCD = LCD_I2C(LCD_ADDRESS, LCD_WIDTH, LCD_HEIGHT)
LCD.backlight()
LCD.clear()
LCD.setCursor(2, 0) # row, column
LCD.write("SYSTEM STARTING")
LCD.setCursor(7, 2) # row, column
LCD.write("....")
def systemErrorPage(): # system error page
LCD = LCD_I2C(LCD_ADDRESS, LCD_WIDTH, LCD_HEIGHT)
LCD.backlight()
LCD.clear()
LCD.setCursor(0, 0) # row, column
LCD.write(" LOCKER ERROR ")
LCD.setCursor(0, 2) # row, column
LCD.write("please contact admin")
LCD.setCursor(8, 3) # row, column
LCD.write("...")
def systemClosedPage(): # system closed page
LCD = LCD_I2C(LCD_ADDRESS, LCD_WIDTH, LCD_HEIGHT)
LCD.backlight()
LCD.clear()
LCD.setCursor(1, 0) # row, column
LCD.write(" LOCKER CLOSED ")
LCD.setCursor(0, 2) # row, column
LCD.write("please return later")
LCD.setCursor(8, 3) # row, column
LCD.write("...")