import StarTSPImage from PIL import Image, ImageDraw import paho.mqtt.client as mqtt # The callback for when the client receives a CONNACK response from the server. def on_connect(client, userdata, flags, rc): print("Connected with result code "+str(rc)) # Subscribing in on_connect() means that if we lose the connection and # reconnect then subscriptions will be renewed. client.subscribe("print") # The callback for when a PUBLISH message is received from the server. def on_message(client, userdata, msg): print(msg.topic+" "+str(msg.payload)) image = Image.new('RGB', (2000, 2000), color='White') draw = ImageDraw.Draw(image) draw.ellipse((0, 0, 500, 500), fill='Black') draw.ellipse((10, 10, 490, 490), fill='White') image.show() image.save("image.jpg") # raster = StarTSPImage.imageToRaster(image, cut=True) # printer = open('/dev/usb/lp0', "wb") # printer.write(raster) client = mqtt.Client() client.on_connect = on_connect client.on_message = on_message client.connect("10.1.1.162", 1883, 60) # Blocking call that processes network traffic, dispatches callbacks and # handles reconnecting. # Other loop*() functions are available that give a threaded interface and a # manual interface. client.loop_forever()