pil example clock (snippet)

Python pil example 'clock'

Modules used in program:

• import Adafruit_GPIO.SPI as SPI
• import Adafruit_Nokia_LCD as LCD
• import time

python clock

Python pil example: clock

#!/usr/bin/python

import time
from datetime import datetime

import Adafruit_Nokia_LCD as LCD
import Adafruit_GPIO.SPI as SPI

from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont

# Raspberry Pi hardware SPI config:
DC = 23
RST = 24
SPI_PORT = 0
SPI_DEVICE = 0

# Hardware SPI usage:
disp = LCD.PCD8544(DC, RST, spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE, max_speed_hz=4000000))

# Software SPI usage (defaults to bit-bang SPI interface):
#disp = LCD.PCD8544(DC, RST, SCLK, DIN, CS)

# Initialize library.
disp.begin(contrast=40)

# Clear display.
disp.clear()
disp.display()

# Create blank image for drawing.
# Make sure to create image with mode '1' for 1-bit color.
image = Image.new('1', (LCD.LCDWIDTH, LCD.LCDHEIGHT))

# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)

print('Press Ctrl-C to quit.')

while True:
    # Get current time
    strt = datetime.now().strftime('%H:%M:%S')

    # Draw a white filled box to clear the image.
    draw.rectangle((0,0,LCD.LCDWIDTH,LCD.LCDHEIGHT), outline=255, fill=255)

    # Alternatively load a TTF font.
    # Some nice fonts to try: http://www.dafont.com/bitmap.php
    font = ImageFont.truetype('game_over.ttf', 58)

    # Write some text.
    draw.text((0,0), strt, font=font)

    # Display image.
    disp.image(image)
    disp.display()

    time.sleep(1.0)

Python links

• Learn Python: https://pythonbasics.org/
• Python Tutorial: https://pythonprogramminglanguage.com