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Changes for page Notes for ChirpStack

Last modified by Xiaoling on 2025/07/31 17:18
From version 84.1
edited by Xiaoling
on 2022/05/26 09:16
Change comment: Uploaded new attachment "image-20220526091602-5.png", version {1}
To version 131.1
edited by Kilight Cao
on 2022/12/22 14:18
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
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1 -XWiki.Xiaoling
1 +XWiki.Kilight
Content
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1 -**~ Contents:**
1 +**~ Table of Contents:**
2 2  
3 3  {{toc/}}
4 4  
5 -= 1. Introduction =
6 6  
6 +
7 +
8 += 1.  Introduction =
9 +
10 +
7 7  (% style="color:black" %)The ChirpStack open-source LoRaWAN Network Server stack provides open-source components for LoRaWAN networks And the Chirpstack supports the users in building a private LoRaWAN Server. For more info please refer to this [[link>>url:https://www.chirpstack.io/]]
8 8  
9 9  (((
10 10  (% style="color:black" %)The dragino gateway can connect the ChirpStack server via Semtech UDP or Semtech Basic Station.
15 +
16 +
11 11  )))
12 12  
13 -**Prerequisite**
19 +(% style="color:blue" %)**Prerequisite:**
14 14  
15 -1) Have a Chirstack Server.
21 +**1) Have a Chirstack Server.**
16 16  
17 17  [[image:image-20220525100058-1.png]]
18 18  
... ... @@ -19,110 +19,145 @@
19 19  ChirpStack home page
20 20  
21 21  
22 -2) Gateway model support
23 23  
29 +**2) Gateway model support**
30 +
24 24  (% class="box" %)
25 25  (((
26 26  (((
27 27  Semtech UDP : **All Model**
28 -Basic Station : , , 
29 -**Note** : the firmware needs >  if use the Bais station
35 +Basic Station : [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] [[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]]
36 +(% style="color:red" %)**Note** (%%): the firmware needs >[[lgw~~-~~-build-v5.4.1640315898>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]  if use the Bais station
30 30  )))
31 31  )))
32 32  
33 -= 2. Semtech UDP =
34 34  
35 -== 2.1 Step 1. Add the Network-servers ==
36 36  
42 += 2.  Semtech UDP =
43 +
44 +== 2.1  Step 1. Add the Network-servers ==
45 +
46 +
37 37  The network-Servers address varies depending on the ChirpStack server setup environment
38 38  
39 39  (% class="box" %)
40 40  (((
41 - Windows       ~-~->Network-server server * : localhost:8000
42 - Linux         ~-~->Network-server server * : chirpstack-network-server:8000
51 + Windows       ~-~->  Network-server server *  :  localhost:8000
52 + Linux  ~-~->  Network-server server *  :  chirpstack-network-server:8000
43 43  )))
44 44  
45 -If the user cannot add network-Servers, re-check the ChirpStack code or the server building process.
46 46  
47 -[[image:image-20220525100158-2.png]]
56 +(% style="color:red" %)**If the user cannot add network-Servers, re-check the ChirpStack code or the server building process.**
48 48  
58 +
59 +[[image:image-20220531171609-1.png]]
60 +
49 49  Add the Network-servers
50 50  
51 -== 2.2 Step 2. Create Gateway-profiles ==
52 52  
53 -[[image:image-20220525100255-3.png]]
54 54  
65 +== 2.2  Step 2. Create Gateway-profiles ==
66 +
67 +
68 +[[image:image-20220531171651-2.png]]
69 +
55 55  Create Gateway-profiles
56 56  
57 -== 2.3 Step 3. Create Service-profiles ==
58 58  
59 -[[image:image-20220525100322-4.png]]
60 60  
74 +== 2.3  Step 3. Create Service-profiles ==
75 +
76 +
77 +[[image:image-20220531171809-3.png]]
78 +
61 61  Create Service-profiles
62 62  
81 +
63 63  In Step 3. Create Service-profiles, the above parameters can be set. If necessary, you can set them by yourself. This is only an example.
64 64  
65 65  (% style="color:red" %)**Note : Before add the gateway, the user needs to complete the preceding three steps.**
66 66  
67 -If the user has completed the preceding steps, proceed to the next step.
86 +If the user has completed the preceding steps, proceed to the next step.(% style="display:none" %)
68 68  
69 -== 2.4 Step 4. Add the gateway ==
70 70  
89 +
90 +== 2.4  Step 4. Add the gateway ==
91 +
92 +
71 71  The example gateway id is: a840411e96744150
72 72  
73 73  (((
74 74  (% style="color:red" %)**Note : The Gateway EUI and server addresses must match the ChirpStack configuration.**
97 +
98 +
75 75  )))
76 76  
77 -[[image:image-20220525100350-5.png]]
101 +[[image:image-20220531171923-4.png]](% style="display:none" %)
78 78  
79 79  Add the gateway
80 80  
81 -[[image:image-20220525100417-6.png]]
82 82  
106 +
107 +[[image:image-20220531172031-5.png]]
108 +
83 83  Configure the gateway
84 84  
85 -== 2.5 Step 5. Checking gateway Status ==
86 86  
87 -[[image:image-20220525100448-7.png]]
88 88  
113 +== 2.5  Step 5. Checking gateway Status ==
114 +
115 +
116 +[[image:image-20220531172158-6.png]](% style="display:none" %)
117 +
118 +
119 +
89 89  gateway Status
90 90  
91 -[[image:image-20220525100516-8.png]]
122 +[[image:image-20220531172304-7.png]]
92 92  
93 93  gateway Status
94 94  
95 -= 3. Gateway Registration for Basics Station =
96 96  
97 -== Introduction ==
98 98  
128 += 3.  Gateway Registration for Basics Station =
129 +
130 +== 3.1  Introduction ==
131 +
132 +
99 99  The [[Semtech Basic Station>>url:https://doc.sm.tc/station/]] backend implements the [[LNS protocol>>url:https://doc.sm.tc/station/tcproto.html]]. It exposes a WebSocket handler to which Basic Station powered gateways can connect.
100 100  
101 101  ChirpStack Open-Source LoRaWAN® Network Server needs to set up a configuration that can use Semtech BasicStation.
102 102  
103 -**Below list the support products and Requirements:**
104 104  
138 +(% style="color:blue" %)**Below list the support products and Requirements:**
139 +
105 105  1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]]
106 106  1. Firmware version since :[[lgw~~-~~-build-v5.4.1651822913>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Test_Firmware/lgw--build-v5.4.1651822913-20220506-1543/]]
107 107  
108 -**How to set up chirpStack Basic Station**
143 +(% style="color:blue" %)**How to set up chirpStack Basic Station**
109 109  
110 110  Users can check out the ChirpStack Basic Station [[link>>https://www.chirpstack.io/gateway-bridge/backends/basic-station/]] and [[forum>>https://forum.chirpstack.io/search?q=basic%20station]]
111 111  
112 -**What do you need to prepare**
113 113  
148 +(% style="color:blue" %)**What do you need to prepare**
149 +
114 114  A gateway that can access the internet normally
115 115  
116 -== 3.1 Add Gateway ==
117 117  
153 +== 3.2  Add Gateway ==
154 +
155 +
118 118  [[image:image-20220524164205-10.png]]
119 119  
120 -== 3.2 Access the gateway GUI ==
121 121  
159 +== 3.3  Access the gateway GUI ==
160 +
161 +
122 122  Access the gateway GUI interface of LoRaWAN~-~->LoRaWAN ~-~- Basic Station
123 123  
124 124  [[image:image-20220524164319-11.png]]
125 125  
166 +
126 126  User need to Choose the ChirpStack/Senet ~-~- Basic Station , input Server URI and Upload the TLS Certificate
127 127  
128 128  (% class="box" %)
... ... @@ -137,48 +137,165 @@
137 137  (% class="wikigeneratedid" %)
138 138  [[image:image-20220524164341-12.png]]
139 139  
140 -== 3.3 Start Station ==
141 141  
142 -When the user has finished the configuration, Please click Sace&Apply to start station to connect ChirpStack
182 +== 3.4  Start Station ==
143 143  
144 -== 3.4 Successful Connection ==
145 145  
185 +When the user has finished the configuration, Please click **Sace&Apply** to start station to connect ChirpStack.
186 +
187 +
188 +== 3.5  Successful Connection ==
189 +
190 +
146 146  If user completes the above steps, which will see live date in the ChirpStack.
147 147  
148 148  [[image:image-20220524164448-13.png]]
149 149  
150 -== 3.5 Trouble Shooting ==
151 151  
196 +== 3.6  Trouble Shooting ==
197 +
198 +
152 152  User can check the station log in the logread/system log page.
153 153  
154 -[[image:image-20220524164514-14.png]]
201 +[[image:image-20220531172837-8.png]]
155 155  
203 +
156 156  and recode the station log in the system/Recode log page.
157 157  
158 -[[image:image-20220524164541-15.png]]
206 +[[image:image-20220531172857-9.png]]
159 159  
160 -= 4. Downlink =
161 161  
162 -== 4.1 Chirpstack Downlink Note ==
209 += 4. How the gateway connects to Chirpstack v4 via gateway-bridge =
163 163  
164 -[[image:image-20220525101223-9.png]]
165 165  
166 -Convert the data to Base64
212 +(% style="color:blue" %)**Below list the support products and Requirements:**
167 167  
168 -[[image:image-20220525101247-10.png]]
214 +1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]],[[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]],[[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]],[[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]]
215 +1. Firmware version since: [[Chirpstack-gateway-bridge>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/Chirpstack-gateway-bridge/]]
169 169  
170 -Check ChripStack downlink DataRate
217 +(% style="color:blue" %)**How to set up chirpStack Gateway-bridge**
171 171  
219 +Users can check out the ChirpStack gateway-bridge v4 [[link>>https://www.chirpstack.io/docs/chirpstack-gateway-bridge/install/dragino.html]]
220 +
221 +
222 +(% style="color:blue" %)**What do you need to prepare**
223 +
224 +A gateway that can access the internet normally
225 +
226 +== 4.1 Configure Packet Forwarder ==
227 +
228 +In the Dragino gateway web interface, you need to configure the Packet Forwarder so that it forwards its data to the port. localhost:1700 or 127.0.0.1:1700
229 +
230 +* In the **LoRaWAN** menu, click on **LoRaWAN ~-~- Semtech UDP**
231 +* Make sure the following settings are set:
232 +** **Service Provider:** //~-~-Custom/Private LoRaWAN~-~-//
233 +** **LoRaWAN Server Address:** //localhost or 127.0.0.1//
234 +** **Server port for upstream:** //1700//
235 +** **Server port for downstream:** //1700//
236 +
237 + Click **Save & Apply**.
238 +
239 +[[image:image-20221222114220-2.png||height="748" width="931"]]
240 +
241 +
242 +== 4.2 Configuring gateway frequency ==
243 +
244 +Note: Gateway frequencies must match
245 +
246 +[[image:image-20221222134830-3.png||height="408" width="923"]]
247 +
248 +
249 +== 4.3 Modify the gateway-bridge configuration file ==
250 +
251 +
252 +Run the gateway command line command to modify the gateway-bridge configuration file:
253 +
254 +(% class="box infomessage" %)
255 +(((
256 +root@dragino-1d27d4:~~#  vim /etc/chirpstack-gateway-bridge/chirpstack-gateway-bridge.toml
257 +)))
258 +
259 +[[image:image-20221222113302-1.png]]
260 +
261 +[[image:image-20221222140203-4.png||height="875" width="806"]]
262 +
263 +
264 +(% class="wikigeneratedid" id="H" %)
265 +After the modification, run the following command: **/etc/init.d/chirpstack-gateway-bridge restart**
266 +
267 +== 4.3 (Re)start and stop gateway-bridge ==
268 +
269 +Use the following commands to (re)start and stop the ChirpStack Gateway Bridge Service:
270 +
271 +(% class="box infomessage" %)
272 +(((
273 +**# start**
274 +
275 +/etc/init.d/chirpstack-gateway-bridge start
276 +
277 +**# stop**
278 +
279 +/etc/init.d/chirpstack-gateway-bridge stop
280 +
281 +**# restart**
282 +
283 +/etc/init.d/chirpstack-gateway-bridge restart
284 +)))
285 +
286 +
287 +(% class="wikigeneratedid" %)
288 +== 4.4 Successful Connection ==
289 +
290 +[[image:image-20221222141754-5.png||height="488" width="1150"]]
291 +
292 +[[image:image-20221222141830-6.png||height="582" width="1153"]]
293 +
294 += 5.  Downlink =
295 +
296 +== 5.1 Convert HEX to Base64 ==
297 +
298 +
299 +(% style="color:red" %)**Note: Chirpstack uses base64 to downlink, the end node user manual provides HEX format of the downlink commands. So user needs to convert the HEX to Base64.**
300 +
301 +**[[Online HEX to Base64 Converter>>https://base64.guru/converter/encode/hex]]:**
302 +
303 +[[image:image-20221010193350-1.png]]
304 +
305 +
306 +
307 +**[[Online Base64 to Hex converter>>https://base64.guru/converter/decode/hex]]**
308 +
309 +[[image:image-20221010193621-2.png]]
310 +
311 +
312 +== 5.2  Chirpstack Downlink Note ==
313 +
314 +
315 +[[image:image-20220601102543-2.png]]
316 +
317 +**Convert the data to Base64**
318 +
319 +(% style="display:none" %) (%%)
320 +
321 +
322 +[[image:image-20220531173236-10.png||height="597" width="1215"]]
323 +
324 +**Check ChripStack downlink DataRate**
325 +
326 +
327 +
172 172  [[image:image-20220525101326-11.png]]
173 173  
174 -Make sure the RX2DR is the same in the end node
330 +**Make sure the RX2DR is the same in the end node**
175 175  
176 -== 4.2 Loraserver Downlink Note ==
177 177  
333 +== 5.3  Loraserver Downlink Note ==
334 +
335 +
178 178  User can use MQTT to send downlink payload to ChirpStack to perform downstream to LoRaWAN End
179 179  
180 180  (((
181 -Below is examples:
339 +**Below is examples:**
182 182  )))
183 183  
184 184  (% class="box" %)
... ... @@ -189,14 +189,17 @@
189 189  User name: User name Password: password
190 190  )))
191 191  
192 -[[image:image-20220525101401-12.png]]
350 +[[image:image-20220531173419-11.png]]
193 193  
194 194  (((
195 -MQTT Connect to ChirpStack
353 +**MQTT Connect to ChirpStack**
354 +
355 +
356 +
196 196  )))
197 197  
198 198  (((
199 -After connect
360 +**After connect**
200 200  )))
201 201  
202 202  (% class="box" %)
... ... @@ -214,22 +214,16 @@
214 214  Payload: {"confirmed":true,"fPort":2,"data":"AwEB"}
215 215  )))
216 216  
217 -[[image:image-20220525101436-13.png]]
378 +[[image:image-20220531173519-12.png]]
218 218  
219 -MQTT Connect to ChirpStack
380 +**MQTT Connect to ChirpStack**
220 220  
221 -(((
222 -(% style="color:red" %)Note: Chirpstack use base64 to downlink, so need to convert the downlink payload from HEX to base64 [[https:~~/~~/base64.us/>>url:https://base64.us/]]
223 -)))
224 224  
225 -[[image:image-20220525101505-14.png]]
383 +**If we want to send downstream hex 030101 to end node, the BASE64 payload is AwEB**
226 226  
227 -Choose to Use Hex for Encode
385 +[[image:image-20220531173658-14.png]]
228 228  
229 -If we want send downstream hex 030101 to end node, the BASE64 payload is AwEB
230 230  
231 -[[image:image-20220525104025-15.png]]
232 -
233 233  (((
234 234  Downlink payload encode javescript code: 可以在网站上运行以下Javsscript代码：
235 235  )))
... ... @@ -247,15 +247,15 @@
247 247   {
248 248   if(sha1[n] >= 'A' && sha1[n] <= 'Z')
249 249   {
250 - ascv = sha1.charCodeAt(n) - 55;
405 + ascv = sha1.charCodeAt( n ) - 55;
251 251   }
252 252   else if(sha1[n] >= 'a' && sha1[n] <= 'z')
253 253   {
254 - ascv = sha1.charCodeAt(n) - 87;
409 + ascv = sha1.charCodeAt( n ) - 87;
255 255   }
256 256   else
257 257   {
258 - ascv = sha1.charCodeAt(n) - 48;
413 + ascv = sha1.charCodeAt( n ) - 48;
259 259   }
260 260  \\ bit_arr = (bit_arr << 4) | ascv;
261 261   bit_num += 4;
... ... @@ -291,20 +291,27 @@
291 291   AwAA is 0x030000's base 64 Encode.
292 292  )))
293 293  
294 -== 4.3 Add the decode function in Chirpstack for the payload ==
295 295  
450 +
451 +== 4.3  Add the decode function in Chirpstack for the payload ==
452 +
453 +
296 296  User enters the payload code according to the steps.
297 297  
298 -[[image:image-20220525104051-16.png]]
456 +[[image:image-20220531173754-15.png||height="474" width="1334"]]
299 299  
300 -[[image:image-20220525104155-17.png]]
301 301  
302 -[[image:image-20220525104223-18.png]]
459 +[[image:image-20220531173856-16.png]]
303 303  
304 -[[image:image-20220525104258-19.png]]
305 305  
306 -= 5. Multiply Uplink in ChirpStack =
462 +[[image:image-20220531174120-20.png]]
307 307  
464 +[[image:image-20220531174046-19.png]]
465 +
466 +
467 += 6.  Multiply Uplink in ChirpStack =
468 +
469 +
308 308  (((
309 309  nbtrans field is the value to determine the re-transmission time for unconfirmed uplink data.
310 310  )))
... ... @@ -311,12 +311,17 @@
311 311  
312 312  (((
313 313  ChirpStack will auto adjust nbtrans according to uplink rssi. [[link to source>>url:https://github.com/brocaar/chirpstack-network-server/blob/master/internal/adr/adr.go]]
476 +
477 +
314 314  )))
315 315  
316 -[[image:image-20220525104328-20.png]]
480 +[[image:image-20220526091912-7.png||height="241" width="1336"]]
317 317  
482 +
318 318  (((
319 319  nbtrans is a field of ADR message, in unconfirm mode, it tells end node how many time it needs to transmit for every frame.
485 +
486 +
320 320  )))
321 321  
322 322  [[image:image-20220525104359-21.png]]
... ... @@ -323,6 +323,8 @@
323 323  
324 324  (((
325 325  Above behaviour will cause the platform shows below two cases of error:
493 +
494 +
326 326  )))
327 327  
328 328  (((
... ... @@ -331,26 +331,37 @@
331 331  
332 332  [[image:image-20220525104437-22.png]]
333 333  
334 -Duplicate transmission in short time
335 335  
336 -[[image:image-20220525104502-23.png]]
337 337  
338 -== 5.1 Solution ==
505 +**Duplicate transmission in short time**
339 339  
507 +[[image:image-20220601102430-1.png||height="598" width="1319"]]
508 +
509 +
510 +
511 +== 6.1  Solution ==
512 +
513 +
340 340  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]]
341 341  
516 +
342 342  (((
343 -~1. Install the GO compilation environment: Download the corresponding version of the Go compiler at [[https:~~/~~/go.dev/dl/>>url:https://go.dev/dl/]] and install it.
518 +(% style="color:blue" %)**1.  Install the GO compilation environment: Download the corresponding version of the Go compiler at [[https:~~/~~/go.dev/dl/>>url:https://go.dev/dl/]] and install it.**
519 +
520 +
344 344  )))
345 345  
346 346  [[image:image-20220525104532-24.png]]
347 347  
348 -installation path:
349 349  
526 +**installation path:**
527 +
350 350  [[image:image-20220525104554-25.png]]
351 351  
530 +
531 +
352 352  (((
353 -2. Environment variable settings:.
533 +(% style="color:blue" %)**2.  Environment variable settings:**
354 354  )))
355 355  
356 356  (((
... ... @@ -358,21 +358,25 @@
358 358  )))
359 359  
360 360  (((
361 -2)Set the variable name GOROOT and the variable value C:\Go\ (installation directory)
541 +2) Set the variable name GOROOT and the variable value C:\Go\ (installation directory)
362 362  )))
363 363  
364 364  [[image:image-20220524165433-33.png]]
365 365  
366 -3)Modify the system variable Path and add C:\Go\bin\:
367 367  
547 +3) Modify the system variable Path and add C:\Go\bin\:
548 +
368 368  [[image:image-20220524165452-34.png]]
369 369  
551 +
370 370  User variable setting file generation directory: D:\go:
371 371  
372 372  [[image:image-20220524165517-35.png]]
373 373  
374 -3. Modify the ADR configuration file according to your own needs, adr.setting.go is an example of the ADR configuration file.
375 375  
557 +
558 +(% style="color:blue" %)**3.  Modify the ADR configuration file according to your own needs, adr.setting.go is an example of the ADR configuration file.**
559 +
376 376  The name of the plugin: Example ADR plugin:
377 377  
378 378  [[image:image-20220524165540-36.png]]
... ... @@ -381,8 +381,10 @@
381 381  
382 382  [[image:image-20220524165557-37.png]]
383 383  
384 -4. Compile the ADR configuration file and generate the exe file.
385 385  
569 +
570 +(% style="color:blue" %)**4.  Compile the ADR configuration file and generate the exe file.**
571 +
386 386  1) Create a folder named adr-setting
387 387  
388 388  2) Open the adr-setting folder
... ... @@ -405,8 +405,10 @@
405 405  
406 406  [[image:image-20220524165623-38.png]]
407 407  
408 -5. Add the plugin and run the plugin.
409 409  
595 +
596 +(% style="color:blue" %)**5.  Add the plugin and run the plugin.**
597 +
410 410  (((
411 411  The exe file generated in the previous step is placed in the same root directory as chirpstack-network-server.toml, and the ADR plugin is added to the toml file. The location of the addition is as follows:
412 412  )))
... ... @@ -441,11 +441,62 @@
441 441  
442 442  Finish.
443 443  
444 -= 6. Trouble Shooting =
445 445  
446 -== 6.1 MIC Mismatch or MIC Failed ==
633 += 7.  How to store/get all data traffic for a specific sensor, including raw payload, and uplink/ downlink history. =
447 447  
635 +
636 +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.
637 +
638 +This example will be shown how to store/get all the data in two ways:
639 +
640 +**//1). Chirpstack ~-~-> Node-red//**
641 +
642 +
643 +[[image:image-20221012184501-1.png]]
644 +
645 +
646 +Use MQTT in Nore-red to subscribe to topics published by the chirpstack-application and then continuously write to a file
647 +
648 +[[image:image-20221012174220-2.png]]
649 +
650 +
651 +[[image:image-20221012184655-3.png||height="395" width="1049"]]
652 +
653 +
654 +**Each message is continuously logged to a specified file**
655 +
656 +[[image:image-20221012174352-3.png]]
657 +
658 +
659 +**//2). MQTT  Sub//**
660 +
661 +If you don't want to store the information via node-red, you can get the output via the subscribe command.
662 +
663 +
664 +**If connecting from the same machine, you can use the following command to receive data:**
665 +
666 +(% class="box infomessage" %)
448 448  (((
668 +mosquitto_sub -h localhost -t "application/#" -v
669 +)))
670 +
671 +
672 +**Different host**
673 +
674 +(% class="box infomessage" %)
675 +(((
676 +mosquitto_sub -h IPADDRESS -p 8883 ~-~-insecure ~-~-cafile ca.pem ~-~-cert cert.pem ~-~-key key.pem -t "application/#" -v
677 +)))
678 +
679 +[[image:image-20221012173639-1.png]]
680 +
681 +
682 += 8.  Trouble Shooting =
683 +
684 +== 8.1  MIC Mismatch or MIC Failed ==
685 +
686 +
687 +(((
449 449  When the device is registered or the device is working normally, the problem of MIC mismatch and MIC failed occurs.
450 450  )))
451 451  
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