Create plane.py

1toN/plane.py

@@ -0,0 +1,52 @@
+import paho.mqtt.client as mqtt
+
+
+def on_connect(self, userdata, flags, rc):
+    print("Connected with result code " + str(rc))
+    client.subscribe(topicBroadcast)
+
+
+def on_message(self, userdata, msg):
+    msg = msg.payload.decode('utf-8')
+    print(f"msg.topic {msg}")
+    command = f"Receive commend  {msg} from client2"
+    publish(topicAck, command)
+
+
+def publish(topics, message, waitForAck=False):
+    mid = client.publish(topics, message, 2)[1]
+    print(f"just published {message} to topic")
+    if waitForAck:
+        while mid not in client.topic_ack:
+            print("wait for ack")
+            time.sleep(0.25)
+        client.topic_ack.remove(mid)
+
+
+def on_publish(self, userdata, mid):
+    print("ack")
+    client.topic_ack.append(mid)
+
+
+def initialise_clients(clientName):
+    # callback assignment
+    initialise_client = mqtt.Client(clientName, False)
+    initialise_client.topic_ack = []
+    return initialise_client
+
+
+host = "192.168.50.149"
+port = 1883
+username = "client2"
+topicBroadcast = "mqtt/startUp3to1"
+topicAck = "mqtt/topicAck3to1"
+
+client = initialise_clients(username)
+
+client.on_connect = on_connect
+
+client.on_message = on_message
+
+client.connect(host, port, 60)
+
+client.loop_forever()