ocoge/lib/oled.py

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2020-01-21 07:10:10 +00:00
# -*- coding: utf-8 -*-
import sys
import Adafruit_SSD1306
from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
# Settings
FONT_SIZE = 12
LINE_SPACING = 4
args = sys.argv
linenum = int(args[1]) # 0 origin
if linenum >= 0:
text = args[2]
RST = 24
disp = Adafruit_SSD1306.SSD1306_128_64(rst=RST)
disp.begin()
if linenum < 0:
disp.clear()
disp.display()
exit()
width = disp.width
height = disp.height
image = Image.new('1', (width, height))
draw = ImageDraw.Draw(image)
#draw.rectangle((0, 0, width, height), outline=0, fill=0)
font = ImageFont.truetype(
'/usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf', 12)
LINE_HEIGHT = FONT_SIZE + LINE_SPACING
x = 0
y = linenum * LINE_HEIGHT
draw.rectangle((x, y, width, y+LINE_HEIGHT), outline=0, fill=0) # 行消去
draw.text((0, y), text, font=font, fill=255)
disp.image(image)
disp.display()