"""
'hello_CircuitPython.py'
=================================================
hello world using 16x2 character lcd
requires:
- CircuitPython_CharLCD Module
"""

import time
from board import D7, D8, D9, D10, D11, D12, D13
import digitalio
import adafruit_character_lcd

#   Character LCD Config:
#   modify this if you have a different sized charlcd
lcd_columns = 16
lcd_rows = 2

#   Metro m0 Pin Config:
lcd_rs = digitalio.DigitalInOut(D7)
lcd_en = digitalio.DigitalInOut(D8)
lcd_d7 = digitalio.DigitalInOut(D12)
lcd_d6 = digitalio.DigitalInOut(D11)
lcd_d5 = digitalio.DigitalInOut(D10)
lcd_d4 = digitalio.DigitalInOut(D9)
lcd_backlight = digitalio.DigitalInOut(D13)

#   Init the lcd class
lcd = adafruit_character_lcd.Character_LCD(lcd_rs, lcd_en, lcd_d4, lcd_d5, lcd_d6,
                                           lcd_d7, lcd_columns, lcd_rows, lcd_backlight)

#   Print a 2x line message
lcd.message('hello\ncircuitpython')
# Wait 5s
time.sleep(5)
#   Demo showing cursor
lcd.clear()
lcd.show_cursor(True)
lcd.message('showing cursor ')
#   Wait 5s
time.sleep(5)
#   Demo showing the blinking cursor
lcd.clear()
lcd.blink(True)
lcd.message('Blinky Cursor!')
#   Wait 5s
time.sleep(5)
lcd.blink(False)
#   Demo scrolling message LEFT
lcd.clear()
scroll_msg = 'Scroll'
lcd.message(scroll_msg)
#   Scroll to the left
for i in range(lcd_columns - len(scroll_msg)):
    time.sleep(0.5)
    lcd.move_left()
#   Demo turning backlight off
lcd.clear()
lcd.message("going to sleep\ncya later!")
lcd.set_backlight(False)
time.sleep(2)