Changes for page Set up CoAP Server

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From version < 16.5 >
edited by Xiaoling
on 2022/07/27 11:56
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1 +Set up CoAP Server
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1 -**~ Table of Contents:**
1 +**~ Contents:**
2 2  
3 3  {{toc/}}
4 4  
5 5  
6 += 1. Introduction =
6 6  
7 -= 1.  Introduction =
8 -
9 -
10 10  (((
11 11  In this chapter, we set up a CoAP/ MQTT server by using Open Source MQTT Broker : [[EMQX.IO>>url:https://www.emqx.io/]]. And show how to communicate it with CoAP and MQTT.
12 12  )))
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13 13  
14 14  (((
15 15  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.
16 -
17 -
18 18  )))
19 19  
20 -[[image:image-20220530084843-1.png]]
16 +[[image:https://wiki.dragino.com/images/thumb/2/25/CoAP_1.png/600px-CoAP_1.png||height="219" width="600"]]
21 21  
22 22  Network structure
23 23  
20 += 2. Install CoAP server =
24 24  
25 -
26 -= 2.  Install CoAP server =
27 -
28 -
29 29  Set up example in Ubuntu 18.04
30 30  
31 31  (% class="box" %)
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39 39  ./bin/emqx_ctl plugins load emqx_coap # Run COAP service
40 40  )))
41 41  
42 -(((
43 43  (% 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.**
44 44  
37 += 3. Test CoAP Server =
45 45  
46 -
47 -)))
39 +== 3.1 Install Copper in Chrome ==
48 48  
49 -= 3.  Test CoAP Server =
50 -
51 -== 3.1  Install Copper in Chrome ==
52 -
53 -
54 54  (((
55 -(% style="color:blue" %)**1. Download Copper4Cr from [[https:~~/~~/github.com/mkovatsc/Copper4Cr>>url:https://github.com/mkovatsc/Copper4Cr]] and unpack it.**
42 +~1. Download Copper4Cr from [[https:~~/~~/github.com/mkovatsc/Copper4Cr>>url:https://github.com/mkovatsc/Copper4Cr]] and unpack it.
56 56  )))
57 57  
58 58  (((
59 -(% style="color:blue" %)**2. Run install.bat in the directory.**
60 -
61 -
62 -[[image:image-20220530085327-2.png]]
46 +2. Run install.bat in the directory.
63 63  )))
64 64  
49 +[[image:https://wiki.dragino.com/images/thumb/4/47/CoAP_Test_1.png/600px-CoAP_Test_1.png||height="191" width="600"]]
50 +
65 65  Run install.bat
66 66  
67 67  
54 +3. Load the unpacked CoAP APP in Google Chrome:
68 68  
69 -(% style="color:blue" %)**3. Load the unpacked CoAP APP in Google Chrome:**
56 +[[image:https://wiki.dragino.com/images/thumb/8/8b/CoAP_Test_2.png/600px-CoAP_Test_2.png||height="114" width="600"]]
70 70  
71 -[[image:image-20220530085423-3.png||height="241" width="1250"]]
72 -
73 73  Install Copper APP
74 74  
60 +[[image:https://wiki.dragino.com/images/thumb/7/70/CoAP_Test_3.png/600px-CoAP_Test_3.png||height="523" width="600"]]
75 75  
76 -
77 -[[image:image-20220530085531-4.png]]
78 -
79 79  Install APP Successful
80 80  
81 81  
65 +4. Load the unpacked CoAP extension in Google Chrome:
82 82  
83 -(% style="color:blue" %)**4. Load the unpacked CoAP extension in Google Chrome:**
67 +[[image:https://wiki.dragino.com/images/thumb/6/65/CoAP_Test_4.png/600px-CoAP_Test_4.png||height="154" width="600"]]
84 84  
85 -[[image:image-20220530085638-5.png||height="338" width="1320"]]
86 -
87 87  Install Copper Extension
88 88  
71 +[[image:https://wiki.dragino.com/images/thumb/9/99/CoAP_Test_5.png/600px-CoAP_Test_5.png||height="183" width="600"]]
89 89  
90 -[[image:image-20220530090104-7.png||height="389" width="1282"]]
91 -
92 92  Install Extension Successful
93 93  
94 94  
76 +5. Replace the appID in file extension\endpoint\ClientPortChrome.js to Copper (Cu4Cr) Application ID
95 95  
96 -(% style="color:blue" %)**5. Replace the appID in file extension\endpoint\ClientPortChrome.js to Copper (Cu4Cr) Application ID**
78 +[[image:https://wiki.dragino.com/images/thumb/7/7e/CoAP_Test_6.png/600px-CoAP_Test_6.png||height="301" width="600"]]
97 97  
98 -[[image:image-20220530090444-10.png]]
99 -
100 100  Replace ID
101 101  
102 102  
83 +6. Open the Copper extension. If you see below message, means install successfully.
103 103  
104 -**(% style="color:blue" %)6. Open the Copper extension. If you see below message, means install successfully.**
85 +[[image:https://wiki.dragino.com/images/thumb/b/b1/CoAP_Test_7.png/600px-CoAP_Test_7.png||height="323" width="600"]]
105 105  
106 -[[image:image-20220530090404-9.png||height="658" width="1238"]]
107 -
108 108  Install Finished
109 109  
110 110  
90 +== 3.2 Test CoAP connection ==
111 111  
112 -== 3.2  Test CoAP connection ==
113 -
114 -
115 115  (((
116 116  Use Chrome Copper externsion to connect to the CoAP server. Input coap:~/~/COAP_SERVER_IP/mqtt/topic0?c=t1 to connect to the MQTT topic0 in CoAP server. Replace COAP_SERVER_IP with your COAP Server IP address, and refer [[here>>url:https://github.com/emqx/emqx-coap]] for the CoAP detail in EMQX. When connection ok, you can see below window.
117 -
118 -
119 -[[image:image-20220530090848-13.png||height="616" width="1154"]]
120 120  )))
121 121  
96 +[[image:https://wiki.dragino.com/images/thumb/0/0c/CoAP_Test_8.png/600px-CoAP_Test_8.png||height="323" width="600"]]
97 +
122 122  Connect to CoAP server
123 123  
124 124  
101 +== 3.3 Test CoAP Uplink ==
125 125  
126 -== 3.3  Test CoAP Uplink ==
127 -
128 -
129 129  (((
130 130  Try to use MQTT.fx to subscribe a the topic (topic0) in the server. And use CoAP to send a message to this topic, we can see the message arrive the topic0 and shown in MQTT.fx.
131 -
132 -
133 -[[image:image-20220530090939-14.png]]
134 134  )))
135 135  
107 +[[image:https://wiki.dragino.com/images/thumb/b/b0/CoAP_Test_9.png/600px-CoAP_Test_9.png||height="429" width="600"]]
108 +
136 136  Use MQTT.fx to subscribe the topic
137 137  
138 138  
112 +[[image:https://wiki.dragino.com/images/thumb/3/39/CoAP_Test_10.png/600px-CoAP_Test_10.png||height="323" width="600"]]
139 139  
140 -[[image:image-20220530091358-18.png||height="549" width="1035"]]
141 -
142 142  Use CoAP Exension to send a update to CoAP server
143 143  
144 144  
117 +[[image:https://wiki.dragino.com/images/thumb/f/fe/CoAP_Test_11.png/600px-CoAP_Test_11.png||height="386" width="600"]]
145 145  
146 -[[image:image-20220530091237-17.png]]
147 -
148 148  MQTT.fx get the update of this topic on CoAP server
149 149  
150 150  
122 +== 3.4 Test CoAP Downlink ==
151 151  
152 -== 3.4  Test CoAP Downlink ==
153 -
154 -
155 155  (((
156 156  Try to use MQTT.fx to publish a message to the topic (topic0) in the server. CoAP extension will see this incomming message.
157 157  )))
127 +
128 +
129 +Use MQTT.fx to publish the topic
130 +
131 +
132 +CoAP extension see the incoming message
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