62 lines
1.5 KiB
Python
Executable file
62 lines
1.5 KiB
Python
Executable file
"""
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'char_lcd.py'
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=================================================
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hello world using 16x2 character lcd
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requires:
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- CircuitPython_CharLCD Module
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"""
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import time
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import digitalio
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import adafruit_character_lcd
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from board import D7, D8, D9, D10, D11, D12, D13
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# Character LCD Config:
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# modify this if you have a different sized charlcd
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lcd_columns = 16
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lcd_rows = 2
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# Metro Express Pin Config:
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lcd_rs = digitalio.DigitalInOut(D7)
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lcd_en = digitalio.DigitalInOut(D8)
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lcd_d7 = digitalio.DigitalInOut(D12)
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lcd_d6 = digitalio.DigitalInOut(D11)
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lcd_d5 = digitalio.DigitalInOut(D10)
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lcd_d4 = digitalio.DigitalInOut(D9)
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lcd_backlight = digitalio.DigitalInOut(D13)
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# Init the lcd class
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lcd = adafruit_character_lcd.Character_LCD(
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lcd_rs, lcd_en, lcd_d4, lcd_d5, lcd_d6, lcd_d7, lcd_columns, lcd_rows, lcd_backlight
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)
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# Print a 2x line message
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lcd.message("hello\ncircuitpython")
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# Wait 5s
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time.sleep(5)
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# Demo showing cursor
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lcd.clear()
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lcd.show_cursor(True)
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lcd.message("showing cursor ")
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# Wait 5s
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time.sleep(5)
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# Demo showing the blinking cursor
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lcd.clear()
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lcd.blink(True)
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lcd.message("Blinky Cursor!")
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# Wait 5s
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time.sleep(5)
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lcd.blink(False)
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# Demo scrolling message LEFT
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lcd.clear()
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scroll_msg = "Scroll"
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lcd.message(scroll_msg)
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# Scroll to the left
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for i in range(lcd_columns - len(scroll_msg)):
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time.sleep(0.5)
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lcd.move_left()
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# Demo turning backlight off
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lcd.clear()
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lcd.message("going to sleep\ncya later!")
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lcd.set_backlight(False)
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time.sleep(2)
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