Added a "udp" effect that listens for UDP packets and then sets the LEDs.

A good companion for the UDP led driver i also commited

effects/udp.json

@@ -0,0 +1,8 @@
+{
+	"name" : "UDP listener",
+	"script" : "udp.py",
+	"args" :
+	{
+		"udpPort" : 2391 
+	}
+}

effects/udp.py

@@ -0,0 +1,47 @@
+import hyperion
+import time
+import colorsys
+import socket
+import errno
+
+# Get the parameters
+udpPort = int(hyperion.args.get('udpPort', 2812))
+
+UDPSock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
+UDPSock.setblocking(False)
+
+listen_addr = ("",udpPort)
+print "udp.py: bind socket port:",udpPort
+UDPSock.bind(listen_addr)
+
+hyperion.setColor(hyperion.ledCount *  bytearray((int(0), int(0), int(0))) )
+
+# Start the write data loop
+while not hyperion.abort():
+		try:
+			data,addr = UDPSock.recvfrom(4500)
+#			print data.strip(),len(data),addr
+			if (len(data)%3 == 0):
+#				print "numleds ",len(data)/3
+				ledData = bytearray()
+				for i in range(hyperion.ledCount):
+					if (i<(len(data)/3)):
+							ledData += data[i*3+0]
+							ledData += data[i*3+1]
+							ledData += data[i*3+2]
+					else:
+							ledData += 	bytearray((int(0), int(0), int(0)))
+
+				hyperion.setColor(ledData)
+
+			else:
+				print "not div 3"
+		except IOError as e:
+			if e.errno == errno.EWOULDBLOCK:
+				pass
+			else:
+				print "errno:", e.errno
+
+print "udp.py: closing socket"
+UDPSock.close()
+