import mqtt import PikaStdDevice client = mqtt.MQTT('broker.emqx.io',port=1883,clinetID='clientid',username='name_',password='passwd_') ret = client.connect() print("connect ret:%d" % ret) def callback0(signal): recv_msg = client.getMsg(signal) recv_topic = client.getTopic(signal) recv_qos = client.getQos(signal) print("py0 cb: %s-qos:%d-->>%s" % (recv_topic,recv_qos, recv_msg)) def callback1(signal): recv_msg = client.getMsg(signal) recv_topic = client.getTopic(signal) recv_qos = client.getQos(signal) print("py1 cb: %s-qos:%d-->>%s" % (recv_topic,recv_qos, recv_msg)) def callback2(signal): recv_msg = client.getMsg(signal) recv_topic = client.getTopic(signal) recv_qos = client.getQos(signal) print("py2 cb: %s-qos:%d-->>%s" % (recv_topic,recv_qos, recv_msg)) ret = client.subscribe('topic_pikapy_qos0', 0,callback0) print("subscribe ret:%d" % ret) ret = client.subscribe('topic_pikapy_qos1', 1,callback1) print("subscribe ret:%d" % ret) ret = client.subscribe('topic_pikapy_qos2', 2,callback2) print("subscribe ret:%d" % ret) #sleep wait for recv data T = PikaStdDevice.Time() T.sleep_s(5) out = client.listSubscribeTopic() print('listSubscribeTopic out',out) # client.unsubscribe('topic_pikapy_qos0'); # client.unsubscribe('topic_pikapy_qos1'); # client.unsubscribe('topic_pikapy_qos2'); # T.sleep_s(5) # out2 = client.listSubscribeTopic() # print('listSubscribeTopic out2',out2) # ret = client.setWill(1,'topic_will',1,'lost mqtt connect') T.sleep_s(10) # exit() ret = client.disconnect() print("disconnect ret:%d" % ret)