66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
# Example and ssd1306 driver derived from https://github.com/adafruit/Adafruit_CircuitPython_SSD1306, which is licensed :
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# SPDX-FileCopyrightText: Melissa LeBlanc-Williams for Adafruit Industries
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# SPDX-License-Identifier: MIT
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import time
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from PIL import Image, ImageDraw, ImageFont
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from external.ssd1306 import SSD1306_I2C, SET_DISP_START_LINE
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from machine import I2C
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# Connect an I2C SSD1306 LCD (128x64)
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def show_image(display, image, draw, font, font2):
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# write the current time to the display after each scroll
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draw.rectangle((0, 0, display.width, display.height * 2), outline=0, fill=0)
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text = time.strftime("%A")
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draw.text((0, 0), text, font=font, fill=255)
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text = time.strftime("%e %b %Y")
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draw.text((0, 14), text, font=font, fill=255)
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text = time.strftime("%X")
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draw.text((0, 36), text, font=font2, fill=255)
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display.image(image)
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display.show()
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# Use second I2C port
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i2c = I2C(i2c_index=1, frequency=400000) # , pullup=True
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display = SSD1306_I2C(128, 64, i2c)
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# Clear the display. Always call show after changing pixels to make the display
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# update visible!
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display.fill(0)
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display.show()
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time.sleep(0.5)
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display.fill(1)
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display.show()
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time.sleep(0.5)
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display.fill(0)
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display.show()
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# # Set a pixel in the origin 0,0 position.
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# display.pixel(0, 0, 1)
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# # Set a pixel in the middle 64, 16 position.
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# display.pixel(64, 32, 1)
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# # Set a pixel in the opposite 127, 31 position.
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# display.pixel(127, 63, 1)
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# display.show()
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image = Image.new("1", (display.width, display.height))
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draw = ImageDraw.Draw(image)
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# Load a font in 2 different sizes.
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font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 16)
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font2 = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 24)
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offset = 0 # flips between 0 and 32 for double buffering
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while True:
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for i in range(0, display.height // 2):
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offset = (offset + 1) % display.height
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display.write_cmd(SET_DISP_START_LINE | offset)
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show_image(display, image, draw, font, font2)
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for i in range(0, display.height // 2):
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show_image(display, image, draw, font, font2)
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time.sleep(0.05)
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