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Version 35.1 by Kilight Cao on 2022/08/06 15:00
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Xiaoling 3.2 1 (% class="wikigeneratedid" %)
Xiaoling 30.2 2 **Table of Contents：**
Xiaoling 3.2 3
4 {{toc/}}
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Xiaoye 2.1 6
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Xiaoling 30.2 8
9 = 1.  Introduction =
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Xiaoye 3.1 12 The LPS8-V2 of Dragino LoRaWAN gateway can communicate with LoRaWAN ABP End Node, the working is based on the built-in server TTN-Stack.
Xiaoye 2.1 13
Xiaoling 30.2 14 **It can be used in some cases such as:**
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Xiaoye 2.1 16 * No internet connection.
17 * Users want to get data forward in the gateway and forward it to their server based on MQTT/HTTP.
Xiaoye 3.1 18 * Forward the data to the built-in Application server Node-Red.
19 * Just storing the data on the gateway or external storage
Xiaoye 2.1 20
Xiaoling 30.4 21
Xiaoling 30.2 22 **The basic of this feature is the decoding of** (% style="color:blue" %)**LoRaWAN ABP End Node**(%%). **Requirements:**
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Xiaoye 2.1 24 1. LoRaWAN End Node in ABP mode. Make sure your end node works in this mode. End node most are default set to OTAA mode
25 1. LoRaWAN Gateway model: LPS8-V2
26 1. System version: Since V.12
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Xiaoling 30.2 31 = 2.  Quick Start =
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34 The default factory version of LPS8-V2 is installed with the Built-in LoRaWAN Server: (% style="color:blue" %)**The Things Network - Stack (Open Source 3.19 Version).**
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Xiaoye 12.1 36 Once the gateway is DHCP an IPV4 address, and then you can access the build-in server TTN-Stack.
Xiaoye 2.1 37
Xiaoye 3.1 38
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Xiaoling 30.2 40 == 2.1.  Configure the gateway mode ==
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Xiaoling 30.2 43 You can access  the gateway's Manage Web UI, via the URL ( (% style="color:blue" %)__**//http:~/~/<hostname> or http:~/~/<local-IPV4-address> //**__(%%)) in your browser
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Xiaoling 30.2 45
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47 === (% style="color:#037691" %)**Selecting the right frequency band**(%%) ===
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Xiaoye 12.1 50 [[image:image-20220802142103-1.png]]
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Xiaoye 12.1 53
Xiaoling 30.2 54 === (% style="color:#037691" %)**Configure the Semtech UDP forwarder**(%%) ===
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Xiaoye 12.1 57 [[image:image-20220802142147-3.png]]
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61 == 2.2.  Login to the built-in server TTN-Stack ==
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Xiaoling 30.2 63
Xiaoye 12.1 64 You can access the gateway's built-in server of **The Things Network - Stack **via the URL( __**//http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address:8080> //**__) in your browser.
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66 Such as  __**//http:~/~/dragino-54ff12:8080  or [[http:~~/~~/<Local-IPV4-Address~>>>http://<Local-IPV4-Address>]]//**__
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69 Login account:
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Xiaoling 30.2 71 (% style="background-color:yellow" %)**User ID: ** ** admin**
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Xiaoling 30.2 73 (% style="background-color:yellow" %)**Password: ** ** dragino**
Xiaoye 12.1 74
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76 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/WebHome/image-20220725171719-1.png?width=769&height=570&rev=1.1||alt="image-20220725171719-1.png"]]
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Xiaoling 30.2 80 == 2.3.  Add the gateway & the sensor ==
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Xiaoye 14.1 83 Here only show the image of the finish, more details about how to add the gateway & sensor refer to this wiki:
Xiaoye 12.1 84
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Xiaoling 30.3 87 === (% style="color:#037691" %)**Add the gateway**(%%) ===
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Xiaoye 12.1 90 [[image:image-20220802142946-5.png]]
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Xiaoling 30.3 94 === (% style="color:#037691" %)**Add the Sensor**(%%) ===
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Xiaoye 12.1 97 [[image:image-20220802143031-6.png||height="794" width="1375"]]
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Xiaoling 30.3 101 == 2.4.  Add the decoder ==
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Xiaoye 14.1 104 If you use dragino sensors then you can find the recorder on this URL:
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Xiaoye 12.1 107 [[image:image-20220802143129-7.png]]
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Xiaoling 30.3 111 == 2.5.  Visual Data ==
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Xiaoye 14.1 114 In this section, you can be seen that the payload of the sensor has been interpreted as visual data.
Xiaoye 12.1 115
Xiaoye 14.1 116 And the next part will discuss where to let the data flow。
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Xiaoling 30.3 118
Xiaoye 12.1 119 [[image:image-20220802143214-8.png]]
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Xiaoling 30.3 123 = 3.  Forward the data or store the data =
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Xiaoye 14.1 126 You are done most of the work, now you just need to plan the flow of data to where.
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Xiaoling 30.3 130 == 3.1  Forward data to an external server based on MQTT/HTTP. ==
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Xiaoling 30.3 132
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134 === (% style="color:#037691" %)**MQTT**(%%) ===
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Xiaoye 14.1 137 You need to connect to this public address on your external server and subscribe to the topic **(v3/<application_name>/devices/<devices_name>/up)**.
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140 [[image:image-20220802144754-9.png]]
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Xiaoye 17.1 142
143 **subscribe to the topic and get the data**
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145 [[image:image-20220802145408-10.png]]
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Xiaoling 30.3 150 === (% style="color:#037691" %)**HTTP**(%%) ===
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Xiaoye 17.1 153 [[image:image-20220802145450-11.png||height="676" width="1164"]]
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Xiaoling 30.3 157 == 3.2  Forward data to the built-in application server Node-Red. ==
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Kilight Cao 19.1 160 [[image:image-20220802150715-1.png||height="739" width="1171"]]
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Xiaoling 30.3 164 == 3.3  Just storing the data on the gateway or external storage. ==
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Kilight Cao 35.1 167 Data can be stored or read by subscribing to topics: (% style="color:#037691" %)**v3/<application_name>/devices/<devices_name>/#**.
Xiaoye 17.1 168
Kilight Cao 35.1 169 Then add the storage node **(write file)**, Users can download the Node-Red flowchart from this link to test data storage：[[attach:test_data_storage.json||target="_blank"]]
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Kilight Cao 35.1 171 After the configuration is complete, users can find the node logs in the root/ directory
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173 [[image:image-20220806144426-2.jpeg||height="540" width="1099"]]
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175 [[image:image-20220806144606-3.jpeg||height="676" width="1102"]]
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177 [[image:image-20220806144336-1.jpeg]]
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Xiaoling 30.3 179 = 4.  Sent the downlink to the sensor =
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Kilight Cao 23.1 181
Xiaoling 30.3 182 Downlinks can be scheduled by publishing the message to the topic (% style="color:#037691" %)** v3/<application_name>/devices/<devices_name>/down/push**.
Kilight Cao 23.1 183
Xiaoling 30.3 184 (% style="color:red" %)**Note**: **Remember that the format of this topic for The Things Stack Open Source deployment would be (v3/<application_name>/devices/<devices_name>/down/push).**
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Kilight Cao 23.1 186 [[MQTT Server ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/integrations/mqtt/]]
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189 Instead of /push, you can also use /replace to replace the downlink queue. Replacing with an empty array clears the downlink queue. Example:
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Kilight Cao 27.1 191 (% class="box" %)
192 (((
193 {
194 "downlinks": [{
195 "f_port": 2,
196 "frm_payload": "AwAA",  
197 "priority": "HIGH",
198 "confirmed": true
199 }]
200 }
201 )))
Kilight Cao 23.1 202
Kilight Cao 27.1 203 [[image:image-20220802170358-4.png||height="656" width="898"]]
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Kilight Cao 23.1 206 [[image:image-20220802164844-3.png||height="345" width="1131"]]
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Xiaoling 30.3 210 **Node-red**
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Kilight Cao 27.1 212 Users can download the Node-Red flowchart for testing [[attach:mqtt-test.json||target="_blank"]]
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Kilight Cao 29.1 215 [[image:image-20220802172021-6.png||height="455" width="1240"]]
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219 = 5.  Trouble Shootings =
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