MQTT communication applications - Revision history

Sinovoip: Blanked the page

2019-02-24T04:20:38Z

Blanked the page

Sinovoip: /* About MQTT */

2019-02-24T04:11:04Z

‎About MQTT

Sinovoip at 04:06, 24 February 2019

2019-02-24T04:06:10Z

Sinovoip: /* MQTT on BPI:bit */

2019-02-24T04:04:32Z

‎MQTT on BPI:bit

Sinovoip: /* MQTT on BPI:bit */

2019-02-24T04:03:16Z

‎MQTT on BPI:bit

Sinovoip: /* MQTT on BPI:bit */

2019-02-24T03:59:32Z

‎MQTT on BPI:bit

Sinovoip: /* MQTT on BPI:bit */

2019-02-24T03:58:00Z

‎MQTT on BPI:bit

Sinovoip: /* MQTT on BPI:bit */

2019-02-24T03:57:32Z

‎MQTT on BPI:bit

Sinovoip: /* MQTT on BPI:bit */

2019-02-24T03:55:16Z

‎MQTT on BPI:bit

Sinovoip: /* MQTT on BPI:bit */

2019-02-24T03:54:31Z

‎MQTT on BPI:bit

← Older revision		Revision as of 04:20, 24 February 2019
Line 1:		Line 1:
−	~~[[File:Webduino_gif.gif\|thumb\|Overview: [[BPI-Bit]]]]~~
−	~~[[File:Micropython3.png\|thumb\|[[1 Get the development suite]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[2 Wired connection board]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[3 Try burning the board]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[4 Hello, World!]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[5 Light up all kinds of LED]] ]]~~

−
−	~~[[File:Micropython4.png\|thumb\|[[1 Auto series one key burn]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[2 ESPBlocks Beginner's only]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[3 Mpfshell details]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[4 Pycharm IDE programming]] ]]~~
−
−	~~[[File:Micropython5.png\|thumb\|[[1. Panel scrolling text]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[2. Panel display images]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[3 Bottom IO port control]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[4 Panel key detection]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[5 Gets the board temperature]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[6 Play MIDI music]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[7 Photosensitive gesture]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[8. MPU-9250 9-axis sensor]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[9. Make a compass]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[10 Free to define gestures]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[11 Random number generator]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[12 S2m Scratch2]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[13 Codelab Scratch3]] ]]~~
−
−	~~[[File:Micropython6.png\|thumb\|[[1 The basic algorithm]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[2 WiFI wireless connection]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[3 WiFI wireless programming]] ]]~~
−	~~[[File:Micropython2.png\|thumb\|[[MQTT communication applications]]]]~~
−
−	~~=About MQTT=~~
−
−	MQTT today is an important part of the Internet of things, the service of outer complex security functions, architecture design belongs to the data forwarding servers at the same time, for example, an MQTT server, can solve different types of two sets of data exchange system, through subscription and transceiver interface design, it will only responsible for both ends to an exchange of data.
−
−	MQTT server mode of transmission can be thought of as everyone through their internal engagement after entering a public chat room, if you want to communicate with others, you can create a chat room (push), you can also add other people chat room (subscription), server regardless of how to communicate between you, it will only help you to the chat room set up and free exchange of information between you can, also have completed the transfer.
−
−	~~==for example==~~
−
−	*Xiao Ming want to send a message to the little red, so xiao Ming can create a topic (topic) of the chat room for sending (publish), then the little red to join (subscribe) this topic (topic) of the chat room, so she could get the xiao Ming's information, the old version of the MQTT chat room is public, between each other is free to join others' topic, also is the others can receive xiaoming, privately, but now the MQTT server allows you to define permissions (config), Let xiao Ming's topic only xiao hong can join.
−
−	~~::[[File:Mqttprocess.png]]~~
−
−	*Code between under this architecture, we are the client code, also do not need to write the server receives the program to another, as long as the two sides agree on the data of the interface agreement is ok, because the communication between the too transparent, so the security so far are too dependent on the surface of certification, will be back to authority and to improve the communication control.
−
−	~~=Prepare the MQTT server=~~
−
−	Use a common MQTT server. If you do not have a public server, click here to enter [http://www.tongxinmao.com/txm/webmqtt.php The communication cat shares the MQTT server online client].Note that the ports of the WS and TCP servers are not the same, so you need to change the server port when you connect
−
−	~~You can also test out the MQTT service directly online, subscribing to your own topic messages and sending your own.~~
−	~~::[[File:Mqttonline_demo.png]]~~
−
−
−	If you don't want to use the Internet's own MQTT server, you can use [https://github.com/BPI-STEAM/BPI-BIT-MicroPython/releases/tag/windows-mosquitto the local mosquitto Windows server environment pack], Just unzip and write out the mosquitos, and the config file is the '''mosquito.conf
−	~~'''~~
−	~~::[[File:Mqttconfig.png]]~~
−
−	It won't show any data after running normally, otherwise it will report an error and flash back, so don't worry about whether it is working or not, if you need to confirm whether it is working properly, you can follow the following tutorial to try.
−
−	~~=MQTT on BPI:bit=~~
−	According to the previous tutorial:[[2 WiFI wireless connection]] and entering wireless mode, this tutorial confirms that the board has a networking configuration and that MQTT service can be started when the network is ready
−
−	~~Now prepare the following Python code, [https://github.com/BPI-STEAM/BPI-BIT-MicroPython/blob/master/12.network/server_mqtt.py server_mqtt.py]~~
−
−	~~import wifi~~
−	~~wifi.start()~~
−	~~server_ip = "mq.tongxinmao.com" # 在线公共的 MQTT 服务器~~
−	~~client_id = "umqtt_client" # 客户端 ID ，随意定义，用来标识自己发出的数据。~~
−
−	~~import time~~
−
−	~~from umqtt.robust import MQTTClient~~
−
−	~~try:~~
−	~~# see https://github.com/micropython/micropython-lib/blob/master/umqtt.simple/umqtt/simple.py~~
−	~~c = MQTTClient(client_id, server_ip, 18830) # 配置连接，这个是连通信猫的服务器配置，端口是 18830，一般默认的是 1883~~
−
−	~~c.DEBUG = True # 输出 Debug 信息~~
−
−	~~def sub_cb(topic, msg):~~
−	~~print((topic, msg))~~
−	~~c.publish(topic, msg) # 无论收到什么订阅的信息都以同样的主题和数据传回。~~
−
−	~~c.set_callback(sub_cb) # 把向远端订阅（subscribe）的数据接收回调处理。~~
−
−	~~if not c.connect(clean_session=False):~~
−	~~c.subscribe(b"foo_topic") # 订阅一个 foo_topic 的主题（topic）~~
−
−	~~c.publish(b"foo_topic", b"hello") # 向 foo_topic 的主题（topic）发送 hello 字符串。~~
−
−	~~while 1:~~
−	~~# 让芯片运行慢一点，便于观察现象。~~
−	~~time.sleep(1)~~
−
−	~~# 等待处理 MQTT 的数据~~
−	~~if c.check_msg() is not None:~~
−	~~c.wait_msg()~~
−
−	~~# 没数据可以处理的时候可以做点别的事情~~
−	~~else:~~
−	~~print('other operator')~~
−	~~finally:~~
−	~~c.disconnect() # 调试程序事重开服务，要记得收尾，否则将重启板子才可以继续。~~
−
−	~~hese are concrete examples of MQTT and should run as follows:~~
−	*These are concrete examples of MQTT and should run as follows.The board will send a hello data to the person who subscribed to the foo_topic topic, which should be displayed to the user who subscribed to the topic on the web page.
−	*The board has subscribed to the foo_topic topic, so it will receive 1's previous hello data sent by itself, and then, according to the code, it will send the received data back intact, so at this time, the board will loop receive and send data on the foo_topic topic.
−	*If we send data to the foo_topic on the web page, the board will receive the data and display it accordingly, such as 11, 22, 3311 shown in the figure. Notice that your new data will also participate in the output data of the loop mentioned in 2.
−	*Try it for yourself.
−	~~::[[File:Mqttonline_test.png]]~~
−	*If it is a web page, it will display the data you defined in the board
−	~~::[[File:Mqttrunning_.png]]~~

@@ Line 37: / Line 37: @@
 MQTT server mode of transmission can be thought of as everyone through their internal engagement after entering a public chat room, if you want to communicate with others, you can create a chat room (push), you can also add other people chat room (subscription), server regardless of how to communicate between you, it will only help you to the chat room set up and free exchange of information between you can, also have completed the transfer.
-for example:
+==for example==
 *Xiao Ming want to send a message to the little red, so xiao Ming can create a topic (topic) of the chat room for sending (publish), then the little red to join (subscribe) this topic (topic) of the chat room, so she could get the xiao Ming's information, the old version of the MQTT chat room is public, between each other is free to join others' topic, also is the others can receive xiaoming, privately, but now the MQTT server allows you to define permissions (config), Let xiao Ming's topic only xiao hong can join.

← Older revision		Revision as of 04:06, 24 February 2019
Line 1:		Line 1:
		+	[[File:Webduino_gif.gif\|thumb\|Overview: [[BPI-Bit]]]]
		+	[[File:Micropython3.png\|thumb\|[[1 Get the development suite]] ]]
		+	[[File:Micropython2.png\|thumb\|[[2 Wired connection board]] ]]
		+	[[File:Micropython2.png\|thumb\|[[3 Try burning the board]] ]]
		+	[[File:Micropython2.png\|thumb\|[[4 Hello, World!]] ]]
		+	[[File:Micropython2.png\|thumb\|[[5 Light up all kinds of LED]] ]]
		+
		+
		+	[[File:Micropython4.png\|thumb\|[[1 Auto series one key burn]] ]]
		+	[[File:Micropython2.png\|thumb\|[[2 ESPBlocks Beginner's only]] ]]
		+	[[File:Micropython2.png\|thumb\|[[3 Mpfshell details]] ]]
		+	[[File:Micropython2.png\|thumb\|[[4 Pycharm IDE programming]] ]]
		+
		+	[[File:Micropython5.png\|thumb\|[[1. Panel scrolling text]] ]]
		+	[[File:Micropython2.png\|thumb\|[[2. Panel display images]] ]]
		+	[[File:Micropython2.png\|thumb\|[[3 Bottom IO port control]] ]]
		+	[[File:Micropython2.png\|thumb\|[[4 Panel key detection]] ]]
		+	[[File:Micropython2.png\|thumb\|[[5 Gets the board temperature]] ]]
		+	[[File:Micropython2.png\|thumb\|[[6 Play MIDI music]] ]]
		+	[[File:Micropython2.png\|thumb\|[[7 Photosensitive gesture]] ]]
		+	[[File:Micropython2.png\|thumb\|[[8. MPU-9250 9-axis sensor]] ]]
		+	[[File:Micropython2.png\|thumb\|[[9. Make a compass]] ]]
		+	[[File:Micropython2.png\|thumb\|[[10 Free to define gestures]] ]]
		+	[[File:Micropython2.png\|thumb\|[[11 Random number generator]] ]]
		+	[[File:Micropython2.png\|thumb\|[[12 S2m Scratch2]] ]]
		+	[[File:Micropython2.png\|thumb\|[[13 Codelab Scratch3]] ]]
		+
		+	[[File:Micropython6.png\|thumb\|[[1 The basic algorithm]] ]]
		+	[[File:Micropython2.png\|thumb\|[[2 WiFI wireless connection]] ]]
		+	[[File:Micropython2.png\|thumb\|[[3 WiFI wireless programming]] ]]
		+	[[File:Micropython2.png\|thumb\|[[MQTT communication applications]]]]
		+
	=About MQTT=		=About MQTT=

← Older revision		Revision as of 04:04, 24 February 2019
Line 78:		Line 78:
	*Try it for yourself.		*Try it for yourself.
	::[[File:Mqttonline_test.png]]		::[[File:Mqttonline_test.png]]
		+	*If it is a web page, it will display the data you defined in the board
		+	::[[File:Mqttrunning_.png]]

← Older revision		Revision as of 04:03, 24 February 2019
Line 77:		Line 77:
	*If we send data to the foo_topic on the web page, the board will receive the data and display it accordingly, such as 11, 22, 3311 shown in the figure. Notice that your new data will also participate in the output data of the loop mentioned in 2.		*If we send data to the foo_topic on the web page, the board will receive the data and display it accordingly, such as 11, 22, 3311 shown in the figure. Notice that your new data will also participate in the output data of the loop mentioned in 2.
	*Try it for yourself.		*Try it for yourself.
		+	::[[File:Mqttonline_test.png]]

← Older revision		Revision as of 03:59, 24 February 2019
Line 72:		Line 72:
	c.disconnect() # 调试程序事重开服务，要记得收尾，否则将重启板子才可以继续。		c.disconnect() # 调试程序事重开服务，要记得收尾，否则将重启板子才可以继续。

−	hese are concrete examples of MQTT and should run as follows	+	hese are concrete examples of MQTT and should run as follows:
		+	*These are concrete examples of MQTT and should run as follows.The board will send a hello data to the person who subscribed to the foo_topic topic, which should be displayed to the user who subscribed to the topic on the web page.
		+	*The board has subscribed to the foo_topic topic, so it will receive 1's previous hello data sent by itself, and then, according to the code, it will send the received data back intact, so at this time, the board will loop receive and send data on the foo_topic topic.
		+	*If we send data to the foo_topic on the web page, the board will receive the data and display it accordingly, such as 11, 22, 3311 shown in the figure. Notice that your new data will also participate in the output data of the loop mentioned in 2.
		+	*Try it for yourself.

← Older revision		Revision as of 03:58, 24 February 2019
Line 71:		Line 71:
	finally:		finally:
	c.disconnect() # 调试程序事重开服务，要记得收尾，否则将重启板子才可以继续。		c.disconnect() # 调试程序事重开服务，要记得收尾，否则将重启板子才可以继续。
		+
		+	hese are concrete examples of MQTT and should run as follows

← Older revision		Revision as of 03:57, 24 February 2019
Line 31:		Line 31:

	Now prepare the following Python code, [https://github.com/BPI-STEAM/BPI-BIT-MicroPython/blob/master/12.network/server_mqtt.py server_mqtt.py]		Now prepare the following Python code, [https://github.com/BPI-STEAM/BPI-BIT-MicroPython/blob/master/12.network/server_mqtt.py server_mqtt.py]
		+
		+	import wifi
		+	wifi.start()
		+	server_ip = "mq.tongxinmao.com" # 在线公共的 MQTT 服务器
		+	client_id = "umqtt_client" # 客户端 ID ，随意定义，用来标识自己发出的数据。
		+
		+	import time
		+
		+	from umqtt.robust import MQTTClient
		+
		+	try:
		+	# see https://github.com/micropython/micropython-lib/blob/master/umqtt.simple/umqtt/simple.py
		+	c = MQTTClient(client_id, server_ip, 18830) # 配置连接，这个是连通信猫的服务器配置，端口是 18830，一般默认的是 1883
		+
		+	c.DEBUG = True # 输出 Debug 信息
		+
		+	def sub_cb(topic, msg):
		+	print((topic, msg))
		+	c.publish(topic, msg) # 无论收到什么订阅的信息都以同样的主题和数据传回。
		+
		+	c.set_callback(sub_cb) # 把向远端订阅（subscribe）的数据接收回调处理。
		+
		+	if not c.connect(clean_session=False):
		+	c.subscribe(b"foo_topic") # 订阅一个 foo_topic 的主题（topic）
		+
		+	c.publish(b"foo_topic", b"hello") # 向 foo_topic 的主题（topic）发送 hello 字符串。
		+
		+	while 1:
		+	# 让芯片运行慢一点，便于观察现象。
		+	time.sleep(1)
		+
		+	# 等待处理 MQTT 的数据
		+	if c.check_msg() is not None:
		+	c.wait_msg()
		+
		+	# 没数据可以处理的时候可以做点别的事情
		+	else:
		+	print('other operator')
		+	finally:
		+	c.disconnect() # 调试程序事重开服务，要记得收尾，否则将重启板子才可以继续。

← Older revision		Revision as of 03:55, 24 February 2019
Line 29:		Line 29:
	=MQTT on BPI:bit=		=MQTT on BPI:bit=
	According to the previous tutorial:[[2 WiFI wireless connection]] and entering wireless mode, this tutorial confirms that the board has a networking configuration and that MQTT service can be started when the network is ready		According to the previous tutorial:[[2 WiFI wireless connection]] and entering wireless mode, this tutorial confirms that the board has a networking configuration and that MQTT service can be started when the network is ready
		+
		+	Now prepare the following Python code, [https://github.com/BPI-STEAM/BPI-BIT-MicroPython/blob/master/12.network/server_mqtt.py server_mqtt.py]

← Older revision		Revision as of 03:54, 24 February 2019
Line 28:		Line 28:

	=MQTT on BPI:bit=		=MQTT on BPI:bit=
		+	According to the previous tutorial:[[2 WiFI wireless connection]] and entering wireless mode, this tutorial confirms that the board has a networking configuration and that MQTT service can be started when the network is ready