Changes for page Set up CoAP Server
Last modified by Xiaoling on 2024/08/19 16:01
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... ... @@ -1,8 +1,12 @@ 1 -Contents: 1 +**~ Table of Contents:** 2 2 3 +{{toc/}} 3 3 4 -= 1. Introduction = 5 5 6 + 7 += 1. Introduction = 8 + 9 + 6 6 ((( 7 7 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. 8 8 ))) ... ... @@ -9,14 +9,19 @@ 9 9 10 10 ((( 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. 16 + 17 + 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"]]20 +[[image:image-20220530084843-1.png]] 15 15 16 16 Network structure 17 17 18 -= 2. Install CoAP server = 19 19 25 + 26 += 2. Install CoAP server = 27 + 28 + 20 20 Set up example in Ubuntu 18.04 21 21 22 22 (% class="box" %) ... ... @@ -30,99 +30,119 @@ 30 30 ./bin/emqx_ctl plugins load emqx_coap # Run COAP service 31 31 ))) 32 32 42 +((( 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 35 -= 3. Test CoAP Server = 36 36 37 -== 3.1 Install Copper in Chrome == 46 + 47 +))) 38 38 49 += 3. Test CoAP Server = 50 + 51 +== 3.1 Install Copper in Chrome == 52 + 53 + 39 39 ((( 40 - ~1. Download Copper4Cr from [[https:~~/~~/github.com/mkovatsc/Copper4Cr>>url:https://github.com/mkovatsc/Copper4Cr]] and unpack it.55 +(% style="color:blue" %)**1. Download Copper4Cr from [[https:~~/~~/github.com/mkovatsc/Copper4Cr>>url:https://github.com/mkovatsc/Copper4Cr]] and unpack it.** 41 41 ))) 42 42 43 43 ((( 44 -2. Run install.bat in the directory. 45 -))) 59 +(% style="color:blue" %)**2. Run install.bat in the directory.** 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 62 +[[image:image-20220530085327-2.png]] 63 +))) 64 + 49 49 Run install.bat 50 50 51 51 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"]]69 +(% style="color:blue" %)**3. Load the unpacked CoAP APP in Google Chrome:** 55 55 71 +[[image:image-20220530085423-3.png||height="241" width="1250"]] 72 + 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 76 + 77 +[[image:image-20220530085531-4.png]] 78 + 60 60 Install APP Successful 61 61 62 62 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"]]83 +(% style="color:blue" %)**4. Load the unpacked CoAP extension in Google Chrome:** 66 66 85 +[[image:image-20220530085638-5.png||height="338" width="1320"]] 86 + 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"]] 70 70 90 +[[image:image-20220530090104-7.png||height="389" width="1282"]] 91 + 71 71 Install Extension Successful 72 72 73 73 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"]]96 +(% style="color:blue" %)**5. Replace the appID in file extension\endpoint\ClientPortChrome.js to Copper (Cu4Cr) Application ID** 77 77 98 +[[image:image-20220530090444-10.png]] 99 + 78 78 Replace ID 79 79 80 80 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"]]104 +(% style="color:blue" %)**6. Open the Copper extension. If you see below message, means install successfully.** 84 84 106 +[[image:image-20220530090404-9.png||height="658" width="1238"]] 107 + 85 85 Install Finished 86 86 87 87 88 -== 3.2 Test CoAP connection == 89 89 112 +== 3.2 Test CoAP connection == 113 + 114 + 90 90 ((( 91 91 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. 92 -))) 93 93 94 -[[image:https://wiki.dragino.com/images/thumb/0/0c/CoAP_Test_8.png/600px-CoAP_Test_8.png||height="323" width="600"]] 95 95 119 +[[image:image-20220530090848-13.png||height="616" width="1154"]] 120 +))) 121 + 96 96 Connect to CoAP server 97 97 98 98 99 -== 3.3 Test CoAP Uplink == 100 100 126 +== 3.3 Test CoAP Uplink == 127 + 128 + 101 101 ((( 102 102 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. 103 -))) 104 104 105 -[[image:https://wiki.dragino.com/images/thumb/b/b0/CoAP_Test_9.png/600px-CoAP_Test_9.png||height="429" width="600"]] 106 106 133 +[[image:image-20220530090939-14.png]] 134 +))) 135 + 107 107 Use MQTT.fx to subscribe the topic 108 108 109 109 110 -[[image:https://wiki.dragino.com/images/thumb/3/39/CoAP_Test_10.png/600px-CoAP_Test_10.png||height="323" width="600"]] 111 111 140 +[[image:image-20220530091358-18.png||height="549" width="1035"]] 141 + 112 112 Use CoAP Exension to send a update to CoAP server 113 113 114 114 115 -[[image:https://wiki.dragino.com/images/thumb/f/fe/CoAP_Test_11.png/600px-CoAP_Test_11.png||height="386" width="600"]] 116 116 146 +[[image:image-20220530091237-17.png]] 147 + 117 117 MQTT.fx get the update of this topic on CoAP server 118 118 119 119 120 -== 3.4 Test CoAP Downlink == 121 121 122 - Tryto use MQTT.fxto publish a messagetothe topic (topic0) in the server.CoAPextensionwill see this incommingmessage.152 +== 3.4 Test CoAP Downlink == 123 123 124 124 125 -Use MQTT.fx to publish the topic 126 - 127 - 128 -CoAP extension see the incoming message 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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