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-#!/usr/bin/python
-# Example using a character LCD connected to a Raspberry Pi or BeagleBone Black.
-import time
-
-import Adafruit_CharLCD as LCD
-
-
-# Raspberry Pi pin configuration:
-lcd_rs = 27 # Note this might need to be changed to 21 for older revision Pi's.
-lcd_en = 22
-lcd_d4 = 25
-lcd_d5 = 24
-lcd_d6 = 23
-lcd_d7 = 18
-lcd_backlight = 4
-
-# BeagleBone Black configuration:
-# lcd_rs = 'P8_8'
-# lcd_en = 'P8_10'
-# lcd_d4 = 'P8_18'
-# lcd_d5 = 'P8_16'
-# lcd_d6 = 'P8_14'
-# lcd_d7 = 'P8_12'
-# lcd_backlight = 'P8_7'
-
-# Define LCD column and row size for 16x2 LCD.
-lcd_columns = 16
-lcd_rows = 2
-
-# Alternatively specify a 20x4 LCD.
-# lcd_columns = 20
-# lcd_rows = 4
-
-# Initialize the LCD using the pins above.
-lcd = LCD.Adafruit_CharLCD(lcd_rs, lcd_en, lcd_d4, lcd_d5, lcd_d6, lcd_d7,
- lcd_columns, lcd_rows, lcd_backlight)
-
-# Print a two line message
-lcd.message('Hello\nworld!')
-
-# Wait 5 seconds
-time.sleep(5.0)
-
-# Demo showing the cursor.
-lcd.clear()
-lcd.show_cursor(True)
-lcd.message('Show cursor')
-
-time.sleep(5.0)
-
-# Demo showing the blinking cursor.
-lcd.clear()
-lcd.blink(True)
-lcd.message('Blink cursor')
-
-time.sleep(5.0)
-
-# Stop blinking and showing cursor.
-lcd.show_cursor(False)
-lcd.blink(False)
-
-# Demo scrolling message right/left.
-lcd.clear()
-message = 'Scroll'
-lcd.message(message)
-for i in range(lcd_columns-len(message)):
- time.sleep(0.5)
- lcd.move_right()
-for i in range(lcd_columns-len(message)):
- time.sleep(0.5)
- lcd.move_left()
-
-# Demo turning backlight off and on.
-lcd.clear()
-lcd.message('Flash backlight\nin 5 seconds...')
-time.sleep(5.0)
-# Turn backlight off.
-lcd.set_backlight(0)
-time.sleep(2.0)
-# Change message.
-lcd.clear()
-lcd.message('Goodbye!')
-# Turn backlight on.
-lcd.set_backlight(1)