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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.**
34	34
	39	+
	40	+)))
	41	+
35	35	= 3. Test CoAP Server =
36	36
37	37	== 3.1 Install Copper in Chrome ==
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42	42
43	43	(((
44	44	2. Run install.bat in the directory.
	52	+
	53	+[[image:image-20220530085327-2.png]]
45	45	)))
46	46
47		-[[image:https://wiki.dragino.com/images/thumb/4/47/CoAP_Test_1.png/600px-CoAP_Test_1.png||height="191" width="600"]]
48	48
49	49	Run install.bat
50	50
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51	51
52	52	3. Load the unpacked CoAP APP in Google Chrome:
53	53
54		-[[image:https://wiki.dragino.com/images/thumb/8/8b/CoAP_Test_2.png/600px-CoAP_Test_2.png||height="114" width="600"]]
	62	+[[image:image-20220530085423-3.png]]
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"]]
59	59
	67	+[[image:image-20220530085531-4.png]]
	68	+
60	60	Install APP Successful
61	61
62	62
63	63	4. Load the unpacked CoAP extension in Google Chrome:
64	64
65		-[[image:https://wiki.dragino.com/images/thumb/6/65/CoAP_Test_4.png/600px-CoAP_Test_4.png||height="154" width="600"]]
	74	+[[image:image-20220530085638-5.png||height="338" width="1320"]]
66	66
67	67	Install Copper Extension
68	68
69		-[[image:https://wiki.dragino.com/images/thumb/9/99/CoAP_Test_5.png/600px-CoAP_Test_5.png||height="183" width="600"]]
	78	+[[image:image-20220530090104-7.png]]
70	70
	80	+
71	71	Install Extension Successful
72	72
73	73
74	74	5. Replace the appID in file extension\endpoint\ClientPortChrome.js to Copper (Cu4Cr) Application ID
75	75
76		-[[image:https://wiki.dragino.com/images/thumb/7/7e/CoAP_Test_6.png/600px-CoAP_Test_6.png||height="301" width="600"]]
77	77
78	78	Replace ID
79	79
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80	80
81	81	6. Open the Copper extension. If you see below message, means install successfully.
82	82
83		-[[image:https://wiki.dragino.com/images/thumb/b/b1/CoAP_Test_7.png/600px-CoAP_Test_7.png||height="323" width="600"]]
	92	+[[image:image-20220530090404-9.png]]
84	84
85	85	Install Finished
86	86
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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
	129	+(((
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
	131	+)))

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