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FlipdotSender.py

@@ -4,6 +4,8 @@ import binascii
 import io
 import time
 import re
+import numpy as np
+
 
 class FlipdotSender(object):
     '''
@@ -63,6 +65,22 @@ class FlipdotSender(object):
         
         self._sock.sendto(bytes(packet), (self._udphost, self._udpport))
     
+    def send_bytes(self, img):
+        imgmap = []
+        for pixel in img:
+            if pixel == "1":
+                imgmap.append(1)
+            else:
+                imgmap.append(0)
+
+        if len(img) < 1280:
+            imgmap = np.hstack((imgmap, np.zeros(1280-len(img), dtype=int)))
+
+        packet = self._array2packet(imgmap)
+
+        self._sock.sendto(bytes(packet), (self._udphost, self._udpport))
+
+    
     def send_text(self, text):
         image = Image.new("RGBA", self._img_size, FlipdotSender.C_BLACK)
         draw = ImageDraw.Draw(image)

mqtt-to-flipdot.py

@@ -8,6 +8,7 @@ def on_connect(client, userdata, flags, rc):
         print("Connected with result code " + str(rc))
         client.subscribe("raum2/flipdot/text")
         client.subscribe("raum2/flipdot/scroll")
+        client.subscribe("raum2/flipdot/image")
 
 
 def on_message(client, userdata, msg):
@@ -28,6 +29,10 @@ def on_message(client, userdata, msg):
             payload = msg.payload.decode("utf-8")
             flipdot.send_text(payload)
         
+        if msg.topic == "raum2/flipdot/image":
+            payload = msg.payload.decode("utf-8")
+            print(payload)
+            flipdot.send_bytes(payload)    
 
 
 flipdot = FlipdotSender("2001:67c:275c:a9::c", 2323)