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1		-Contents:
	1	+**~ Contents:**
2	2
	3	+{{toc/}}
3	3
	5	+
4	4	= 1. Introduction =
5	5
6	6	(((
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11	11	Below is the network structure. The end device use CoAP to connect our Emqx server via NB-IoT network. EMQ X broker will further process the data for the actually application.
12	12	)))
13	13
14		-[[image:https://wiki.dragino.com/images/thumb/2/25/CoAP_1.png/600px-CoAP_1.png||height="219" width="600"]]
	16	+[[image:image-20220530084843-1.png]]
15	15
16	16	Network structure
17	17
	20	+
18	18	= 2. Install CoAP server =
19	19
20	20	Set up example in Ubuntu 18.04
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30	30	./bin/emqx_ctl plugins load emqx_coap # Run COAP service
31	31	)))
32	32
	36	+(((
33	33	(% style="color:red" %)**Notice: CoAP default port use 5683, if you install EMQX in a cloud server, make sure you open the UDP port 5683. So can receive the packets from NB-IoT.**
	38	+)))
34	34
35	35	= 3. Test CoAP Server =
36	36
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55	55
56	56	Install Copper APP
57	57
58		-[[image:https://wiki.dragino.com/images/thumb/7/70/CoAP_Test_3.png/600px-CoAP_Test_3.png||height="523" width="600"]]
	63	+[[image:https://wiki.dragino.com/images/thumb/7/70/CoAP_Test_3.png/687px-CoAP_Test_3.png||alt="File:CoAP Test 3.png"]]
59	59
60	60	Install APP Successful
61	61
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95	95
96	96	Connect to CoAP server
97	97
98		-
99	99	== 3.3 Test CoAP Uplink ==
100	100
101	101	(((
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116	116
117	117	MQTT.fx get the update of this topic on CoAP server
118	118
119		-
120	120	== 3.4 Test CoAP Downlink ==
121	121
	125	+(((
122	122	Try to use MQTT.fx to publish a message to the topic (topic0) in the server. CoAP extension will see this incomming message.
123		-
124		-
125		-Use MQTT.fx to publish the topic
126		-
127		-
128		-CoAP extension see the incoming message
	127	+)))

image-20220530084843-1.png

Author

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	1	+XWiki.Xiaoling

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	1	+57.1 KB

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