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644 644  == 9.2  Example to configure chirpstack Multicast ==
645 645  
646 646  
647 -This section illustrates how to configure ChirpStack Multicast. Below is the network structure, we use our LPS8v2 as the LoRaWAN gateway and SN50v3-LB as the LoRaWAN end-node here.
647 +This section illustrates how to configure ChirpStack Multicast. Below is the network structure, we use our LPS8v2 as the LoRaWAN gateway and two SN50v3-LB as the LoRaWAN end-node here.
648 648  
649 649  [[image:image-20240923105725-1.png]]
650 650  
651 -The LPS8V2 is already set to connect to Chirpstack. So what we need to do now is only configure register these devices to Chirpstack:
652 652  
652 +This example assumes users already have:
653 653  
654 +* SN50v3-LB register on ChirpStack server already
655 +* The user is able to see the data on the ChirpStack server device page.
656 +
657 +(% class="wikigeneratedid" %)
658 +(% style="color:red" %)**Note: **(%%)SN50v3-LB must enable CLASS C and DISFCNTCHECK(The downlink fcnt is not compared with the fcnt of the node).
659 +
660 +(% class="wikigeneratedid" %)
661 +AT command: **AT+CLASS=C**
662 +
663 +(% class="wikigeneratedid" %)
664 + **AT+DISFCNTCHECK=1**
665 +
666 +
654 654  === Step 1. Create the multicast group ===
655 655  
656 656  
670 +Create the multicast group on the corresponding **Application~-~->multicast groups~-~->Add multicast-group** interface, For example, multicast_test01_au915
657 657  
658 -= 9.  Multiply Uplink in ChirpStack =
672 +[[image:image-20240923141847-3.png||height="620" width="1207"]]
659 659  
660 660  
675 +Enter the Multicast address,Multicast network session key,Multicast application session key.
676 +
677 +Use the default LoRaWAN settings, as below:
678 +
679 +* EU868: 869525000hz, DR0
680 +
681 +* US915: 923300000hz, DR8
682 +
683 +* CN470: 505300000hz, DR0
684 +
685 +* AU915: 923300000hz, DR8
686 +
687 +* AS923: 923200000hz, DR2
688 +
689 +* KR920: 921900000hz, DR0
690 +
691 +* IN865: 866550000hz, DR2
692 +
693 +* RU864: 869100000hz, DR0
694 +
695 +Group type: **Class-C**
696 +
697 +Class-C scheduling type : **Delay**
698 +
699 +[[image:image-20240923142446-5.png||height="720" width="1208"]]
700 +
701 +
702 +=== Step 2. Add gateways and devices to the multicast group ===
703 +
704 +
705 +Select a gateway on the "**Gateways**" screen, click "**selected gateways"**, and click "**Add to multicast-group**" to add the gateway to the corresponding multicast group, for example, **multicast_test01_au915**.
706 +
707 +[[image:image-20240923144335-6.png||height="619" width="1209"]]
708 +
709 +[[image:image-20240923144418-7.png||height="572" width="1206"]]
710 +
711 +
712 +On the **Application->Devices** interface, select two SN50v3-LB nodes registered with multicast support, and then click "**Selected devices**". and click "**Add to multicast-group**" to add the node to the corresponding multicast group
713 +
714 +[[image:image-20240923144749-9.png||height="623" width="1211"]]
715 +
716 +
717 +Access the multicast group to check whether two SN50V3-LBs and gateways are added successfully
718 +
719 +[[image:image-20240923145148-10.png||height="601" width="1218"]]
720 +
721 +
722 +=== Step 3. Use the API for multicast Downlink ===
723 +
724 +
725 +To use API Downlink, user first need to generate an API key
726 +
727 +[[image:image-20240923145624-18.png||height="429" width="1211"]]
728 +
729 +[[image:image-20240923145520-16.png||height="422" width="1212"]]
730 +
731 +
732 +For example:**[[https:~~/~~/www.chirpstack.io/docs/chirpstack/api/index.html>>url:https://www.chirpstack.io/docs/chirpstack/api/index.html]]**
733 +
734 +[[image:image-20240923145953-21.png||height="808" width="1222"]]
735 +
736 +
737 +Users can access the Linux console of the gateway via SSH, and then use the curl command to multicast Downlink
738 +
739 +The format is as follows:
740 +
741 +(% class="box infomessage" %)
661 661  (((
743 +curl -X POST 'http:~/~/**Chirpstack_Server_Address**:8090/api/multicast-groups/**Multicast_Groups_ID**/queue' -H "Content-Type: application/json" -H "Authorization: Bearer **eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJhdWQiOiJjaGlycHN0YWNrIiwiaXNzIjoiY2hpcnBzdGFjayIsInN1YiI6IjM3YmRiNzBjLTNjODgtNDFjMi04YmQ2LTgyMDI4ZjdkNzY3NyIsInR5cCI6ImtleSJ9.p1xvRP1PAdwLnLAJn9w6ef612KM8oPZSa_2v4UYPV0w**" -d '{
744 + "queueItem": {
745 + "data": "EjRWeA==",
746 + "fCnt": 0,
747 + "fPort": 123
748 + }
749 +}'
750 +)))
751 +
752 +In the command,eyJ........._2v4UYPV0w is the API key, which can be obtained from the Chirpstack server and the data format is base64,
753 +
754 +
755 +=== Result ===
756 +
757 +Connecting to the SN50v3-LB using the serial USB-TTL port can check that two SN50v3-LBs are receiving Downlink at the same time
758 +
759 +[[image:image-20240923151814-23.png||height="563" width="1255"]]
760 +
761 +
762 += 10.  Multiply Uplink in ChirpStack =
763 +
764 +
765 +(((
662 662  nbtrans field is the value to determine the re-transmission time for unconfirmed uplink data.
663 663  )))
664 664  
... ... @@ -698,7 +698,7 @@
698 698  [[image:image-20220601102430-1.png||height="508" width="1120"]]
699 699  
700 700  
701 -== 9.1  Solution ==
805 +== 10.1  Solution ==
702 702  
703 703  
704 704  This example uses the Windows version as a template, other versions can refer to this. Similiar reference: [[https:~~/~~/confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102>>url:https://confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102]]
... ... @@ -817,7 +817,7 @@
817 817  Finish.
818 818  
819 819  
820 -= 10.  How to store/get all data traffic for a specific sensor, including raw payload, and uplink/ downlink history. =
924 += 11.  How to store/get all data traffic for a specific sensor, including raw payload, and uplink/ downlink history. =
821 821  
822 822  
823 823  All data is published to the MQTT topics. if you want to store/get the data, you would have to create an MQTT handler and store the data yourself.
... ... @@ -866,7 +866,7 @@
866 866  [[image:image-20221012173639-1.png||height="273" width="1206"]]
867 867  
868 868  
869 -= 11.  How to use Chirpstack API to batch register Sensor Node/Gateway in Chistapstack Server =
973 += 12.  How to use Chirpstack API to batch register Sensor Node/Gateway in Chistapstack Server =
870 870  
871 871  The following example is based on the built-in ChirpStack server for LPS8V2
872 872  
... ... @@ -873,7 +873,7 @@
873 873  [[image:image-20231201174640-1.png||height="584" width="1148"]]
874 874  
875 875  
876 -== **11.1 Generate API Tokens** ==
980 +== **12.1 Generate API Tokens** ==
877 877  
878 878  Access the built-in chirpstack , click "**API Key**" and "**Add API Key**".
879 879  
... ... @@ -886,7 +886,7 @@
886 886  [[image:image-20231204104802-1.png]]
887 887  
888 888  
889 -== **11.2 Template file** ==
993 +== **12.2 Template file** ==
890 890  
891 891  
892 892  Click on **"Template File Download"**, the user will download a **register.csv** template file,
... ... @@ -908,7 +908,7 @@
908 908  
909 909  
910 910  
911 -== **11.3 Batch Register** ==
1015 +== **12.3 Batch Register** ==
912 912  
913 913  [[image:image-20231204113136-11.png||height="362" width="1062"]]
914 914  
... ... @@ -921,7 +921,7 @@
921 921  
922 922  
923 923  
924 -= 12.  Example: Use Local Server ChirpStack and Node-Red in LPS8v2 =
1028 += 13.  Example: Use Local Server ChirpStack and Node-Red in LPS8v2 =
925 925  
926 926  
927 927  LPS8v2 includes a local ChirpStack Server and Node-Red. This example shows how to configure LHT65N to use with the local Node-Red server. This example assumes users already have:
... ... @@ -932,7 +932,7 @@
932 932  Below are the steps to plot the sensor data on LPS8v2 Node-Red.
933 933  
934 934  
935 -== 12.1 Link Node-Red to Local ChirpStack ==
1039 +== 13.1 Link Node-Red to Local ChirpStack ==
936 936  
937 937  
938 938  Users can download the Node-Red decoder from this link and import it into the Node-Red platform:  **[[attach:LHT65N-ChirpStack-node-red.json||target="_blank"]]**
... ... @@ -966,7 +966,7 @@
966 966  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Notes%20for%20TTN/WebHome/image-20220914140918-5.png?width=1121&height=602&rev=1.1||alt="image-20220914140918-5.png"]]
967 967  
968 968  
969 -== 12.2 Check result. ==
1073 +== 13.2 Check result. ==
970 970  
971 971  
972 972  Users can check logs by adding debug.
... ... @@ -976,9 +976,9 @@
976 976  [[image:image-20230529150923-1.png||height="424" width="1118"]]
977 977  
978 978  
979 -= 13.  Trouble Shooting =
1083 += 14.  Trouble Shooting =
980 980  
981 -== 13.1  MIC Mismatch or MIC Failed ==
1085 +== 14.1  MIC Mismatch or MIC Failed ==
982 982  
983 983  
984 984  (((
... ... @@ -989,7 +989,7 @@
989 989  Under normal circumstances, users need to change the APPKEY to solve this problem.
990 990  
991 991  
992 -== 13.2  The node is very close to the gateway, but the signal is poor ==
1096 +== 14.2  The node is very close to the gateway, but the signal is poor ==
993 993  
994 994  
995 995  If you are using US915 or AU915, you found the frequency points of different subband ranges in your uplink
... ... @@ -1018,7 +1018,7 @@
1018 1018  **Note: lorawan's protocol link——[[LoRaWAN® Regional Parameters v1.0.3revA (lora-alliance.org)>>url:https://resources.lora-alliance.org/document/lorawan-regional-parameters-v1-0-3reva]]**
1019 1019  
1020 1020  
1021 -== 13.3  ChirpStackv4 node device displays "UPLINK_F_CNT_RETRANSMISSION" ==
1125 +== 14.3  ChirpStackv4 node device displays "UPLINK_F_CNT_RETRANSMISSION" ==
1022 1022  
1023 1023  
1024 1024  This is because the node's packets are retransmitted, and the Fcnt of these packets is the same.
... ... @@ -1049,7 +1049,7 @@
1049 1049  [[image:image-20240717092428-4.jpeg]]
1050 1050  
1051 1051  
1052 -== 13.4  How to get the log information of the node? ==
1156 +== 14.4  How to get the log information of the node? ==
1053 1053  
1054 1054  
1055 1055  ~1. Get information about a single node.
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