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edited by Xiaoling
on 2022/05/17 14:32
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edited by Xiaoling
on 2022/07/27 18:05
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1 -Set up CoAP Server
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
1 +**~ Table of Contents:**
2 +
2 2  {{toc/}}
3 -{{/box}}
4 4  
5 -= Paragraph 1 =
6 6  
7 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
8 8  
9 -== Sub-paragraph ==
7 += 1.  Introduction =
10 10  
11 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
12 12  
13 -== Sub-paragraph ==
10 +(((
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 +)))
14 14  
15 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
14 +(((
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 16  
17 -=== Sub-sub paragraph ===
17 +
18 +)))
18 18  
19 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
20 +[[image:image-20220530084843-1.png]]
20 20  
22 +Network structure
21 21  
22 -= Paragraph 2 =
23 23  
24 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
25 25  
26 -== Sub-paragraph ==
26 += 2.  Install CoAP server =
27 27  
28 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
29 29  
30 -== Sub-paragraph ==
29 +Set up example in Ubuntu 18.04
31 31  
32 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
31 +(% class="box" %)
32 +(((
33 +sudo apt-get update
34 +sudo apt-get upgrade
35 +wget [[https:~~/~~/www.emqx.io/downloads/broker/v3.2.7/emqx-ubuntu18.04-v3.2.7_amd64.deb>>url:https://www.emqx.io/downloads/broker/v3.2.7/emqx-ubuntu18.04-v3.2.7_amd64.deb]]  #download the installation package.
36 +sudo dpkg –i emqx-ubuntu18.04-v3.2.4_amd64.deb  #install EMQX
37 +emqx start            # Start EMQX service
38 +emqx_ctl status   #check if EMQX is running
39 +./bin/emqx_ctl plugins load emqx_coap # Run COAP service
40 +)))
41 +
42 +(((
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 +
45 +
46 +
47 +)))
48 +
49 += 3.  Test CoAP Server =
50 +
51 +== 3.1  Install Copper in Chrome ==
52 +
53 +
54 +(((
55 +(% style="color:blue" %)**1. Download Copper4Cr from [[https:~~/~~/github.com/mkovatsc/Copper4Cr>>url:https://github.com/mkovatsc/Copper4Cr]] and unpack it.**
56 +)))
57 +
58 +(((
59 +(% style="color:blue" %)**2. Run install.bat in the directory.**
60 +
61 +
62 +[[image:image-20220530085327-2.png]]
63 +)))
64 +
65 +Run install.bat
66 +
67 +
68 +
69 +(% style="color:blue" %)**3. Load the unpacked CoAP APP in Google Chrome:**
70 +
71 +[[image:image-20220530085423-3.png||height="241" width="1250"]]
72 +
73 +Install Copper APP
74 +
75 +
76 +
77 +[[image:image-20220530085531-4.png]]
78 +
79 +Install APP Successful
80 +
81 +
82 +
83 +(% style="color:blue" %)**4. Load the unpacked CoAP extension in Google Chrome:**
84 +
85 +[[image:image-20220530085638-5.png||height="338" width="1320"]]
86 +
87 +Install Copper Extension
88 +
89 +
90 +[[image:image-20220530090104-7.png||height="389" width="1282"]]
91 +
92 +Install Extension Successful
93 +
94 +
95 +
96 +(% style="color:blue" %)**5. Replace the appID in file extension\endpoint\ClientPortChrome.js to Copper (Cu4Cr) Application ID**
97 +
98 +[[image:image-20220530090444-10.png]]
99 +
100 +Replace ID
101 +
102 +
103 +
104 +(% style="color:blue" %)**6. Open the Copper extension. If you see below message, means install successfully.**
105 +
106 +[[image:image-20220530090404-9.png||height="658" width="1238"]]
107 +
108 +Install Finished
109 +
110 +
111 +
112 +== 3.2  Test CoAP connection ==
113 +
114 +
115 +(((
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 +)))
121 +
122 +Connect to CoAP server
123 +
124 +
125 +
126 +== 3.3  Test CoAP Uplink ==
127 +
128 +
129 +(((
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 +)))
135 +
136 +Use MQTT.fx to subscribe the topic
137 +
138 +
139 +
140 +[[image:image-20220530091358-18.png||height="549" width="1035"]]
141 +
142 +Use CoAP Exension to send a update to CoAP server
143 +
144 +
145 +
146 +[[image:image-20220530091237-17.png]]
147 +
148 +MQTT.fx get the update of this topic on CoAP server
149 +
150 +
151 +
152 +== 3.4  Test CoAP Downlink ==
153 +
154 +
155 +(((
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 +)))
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