84 lines
2.3 KiB
Python
84 lines
2.3 KiB
Python
import os, logging
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DEBUG = os.environ.get('DEBUG')
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logging.basicConfig(
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#filename='protovax.log', encoding='utf-8',
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format='[%(asctime)s] %(levelname)s %(module)s/%(funcName)s - %(message)s',
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level=logging.DEBUG if DEBUG else logging.INFO)
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import io
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import time
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import requests
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import asyncio
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import aiomqtt
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from escpos.printer import Usb
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from PIL import Image, ImageEnhance
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from aiomqtt import Client
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VENDOR_ID = 0x0416
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PRODUCT_ID = 0x5011
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STATIC_URL = "https://static.spaceport.dns.t0.vc/"
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PRINTER_WIDTH = 384 # Set to your printer's pixel width (common: 384 or 576)
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def print_picture(filename, p):
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try:
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response = requests.get(STATIC_URL + filename, timeout=5)
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response.raise_for_status()
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print("New image detected, printing...")
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last_image_content = response.content
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img = Image.open(io.BytesIO(response.content))
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# Resize first
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wpercent = (PRINTER_WIDTH / float(img.size[0]))
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hsize = int((float(img.size[1]) * float(wpercent)))
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img = img.resize((PRINTER_WIDTH, hsize), Image.LANCZOS)
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# Convert with dithering
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img = img.convert('1', dither=Image.FLOYDSTEINBERG)
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# Print image
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p.image(img)
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p.text('\n\n\n')
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p.cut()
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except requests.exceptions.RequestException as e:
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print(f"Error downloading image: {e}")
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async def process_mqtt(message, p):
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text = message.payload.decode()
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topic = message.topic.value
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logging.debug('MQTT topic: %s, message: %s', topic, text)
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if 'spaceport/drawing/new' in topic:
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print_picture(text, p)
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else:
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logging.debug('Invalid topic, returning')
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return
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async def fetch_mqtt(p):
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await asyncio.sleep(3)
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async with Client(
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hostname='172.17.17.181',
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port=1883,
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) as client:
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await client.subscribe('#')
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async for message in client.messages:
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loop = asyncio.get_event_loop()
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loop.create_task(process_mqtt(message, p))
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if __name__ == '__main__':
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logging.info('')
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logging.info('==========================')
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logging.info('Booting up...')
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p = Usb(VENDOR_ID, PRODUCT_ID, interface=0, in_ep=0x81, out_ep=0x03)
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loop = asyncio.get_event_loop()
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loop.run_until_complete(fetch_mqtt(p))
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