Wiki source code of Notes for ChirpStack

Version 63.2 by Xiaoling on 2022/05/25 10:12
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1 **~ Contents:**
2
3 {{toc/}}
4
5 = 1. Introduction =
6
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
9 (((
10 (% style="color:black" %)The dragino gateway can connect the ChirpStack server via Semtech UDP or Semtech Basic Station.
11 )))
12
13 **Prerequisite**
14
15 1) Have a Chirstack Server.
16
17 [[image:image-20220525100058-1.png]]
18
19 ChirpStack home page
20
21
22 2) Gateway model support
23
24 (% class="box" %)
25 (((
26 (((
27 Semtech UDP : **All Model**
28 Basic Station : , , 
29 **Note** : the firmware needs >  if use the Bais station
30 )))
31 )))
32
33 = 2. Semtech UDP =
34
35 == 2.1 Step 1. Add the Network-servers ==
36
37 The network-Servers address varies depending on the ChirpStack server setup environment
38
39 (% class="box" %)
40 (((
41 Windows       ~-~->Network-server server * : localhost:8000
42 Linux         ~-~->Network-server server * : chirpstack-network-server:8000
43 )))
44
45 If the user cannot add network-Servers, re-check the ChirpStack code or the server building process.
46
47 [[image:image-20220525100158-2.png]]
48
49 Add the Network-servers
50
51 == 2.2 Step 2. Create Gateway-profiles ==
52
53 [[image:image-20220525100255-3.png]]
54
55 Create Gateway-profiles
56
57 == 2.3 Step 3. Create Service-profiles ==
58
59 [[image:image-20220525100322-4.png]]
60
61 Create Service-profiles
62
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
65 (% style="color:red" %)**Note : Before add the gateway, the user needs to complete the preceding three steps.**
66
67 If the user has completed the preceding steps, proceed to the next step.
68
69 == 2.4 Step 4. Add the gateway ==
70
71 The example gateway id is: a840411e96744150
72
73 (((
74 (% style="color:red" %)**Note : The Gateway EUI and server addresses must match the ChirpStack configuration.**
75 )))
76
77 [[image:image-20220525100350-5.png]]
78
79 Add the gateway
80
81 [[image:image-20220525100417-6.png]]
82
83 Configure the gateway
84
85 == 2.5 Step 5. Checking gateway Status ==
86
87 [[image:image-20220525100448-7.png]]
88
89 gateway Status
90
91 [[image:image-20220525100516-8.png]]
92
93 gateway Status
94
95 = 3. Gateway Registration for Basics Station =
96
97 == Introduction ==
98
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
101 ChirpStack Open-Source LoRaWAN® Network Server needs to set up a configuration that can use Semtech BasicStation.
102
103 **Below list the support products and Requirements:**
104
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 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
108 **How to set up chirpStack Basic Station**
109
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
112 **What do you need to prepare**
113
114 A gateway that can access the internet normally
115
116 == 3.1 Add Gateway ==
117
118 [[image:image-20220524164205-10.png]]
119
120 == 3.2 Access the gateway GUI ==
121
122 Access the gateway GUI interface of LoRaWAN~-~->LoRaWAN ~-~- Basic Station
123
124 [[image:image-20220524164319-11.png]]
125
126 User need to Choose the ChirpStack/Senet ~-~- Basic Station , input Server URI and Upload the TLS Certificate
127
128 (% class="box" %)
129 (((
130 Service Provider  ~-~->  Choose the ChirpStack/Senet ~-~- Basic Station
131
132 LNS URI  ~-~->  Enter the LNS URI address, For example : wss:~/~/xxxx.chirpstack.com:433 or ws:~/~/xxxx.chirpstack.com:3001
133
134 LNS TLS trust  ~-~->  Upload the TLS Certificate
135 )))
136
137 (% class="wikigeneratedid" %)
138 [[image:image-20220524164341-12.png]]
139
140 == 3.3 Start Station ==
141
142 When the user has finished the configuration, Please click Sace&Apply to start station to connect ChirpStack
143
144 == 3.4 Successful Connection ==
145
146 If user completes the above steps, which will see live date in the ChirpStack.
147
148 [[image:image-20220524164448-13.png]]
149
150 == 3.5 Trouble Shooting ==
151
152 User can check the station log in the logread/system log page.
153
154 [[image:image-20220524164514-14.png]]
155
156 and recode the station log in the system/Recode log page.
157
158 [[image:image-20220524164541-15.png]]
159
160 = 4. Downlink =
161
162 == 4.1 Chirpstack Downlink Note ==
163
164 [[image:image-20220525101223-9.png]]
165
166 Convert the data to Base64
167
168 [[image:image-20220525101247-10.png]]
169
170 Check ChripStack downlink DataRate
171
172 [[image:image-20220524164724-18.png]]
173
174 Make sure the RX2DR is the same in the end node
175
176 == 4.2 Loraserver Downlink Note ==
177
178 User can use MQTT to send downlink payload to ChirpStack to perform downstream to LoRaWAN End
179
180 (((
181 Below is examples:
182 )))
183
184 (% class="box" %)
185 (((
186 Connect to your server via MQTT：
187 MQTT Client ID: Any   
188 Protocol：mqtt/tcp   Server IP：loraserver_ip:1883
189 User name: User name Password: password
190 )))
191
192 [[image:image-20220524164806-19.png]]
193
194 (((
195 MQTT Connect to ChirpStack
196 )))
197
198 (((
199 After connect
200 )))
201
202 (% class="box" %)
203 (((
204 Subscribe : Format：application/ID/device/ Device EUI/rx
205 Example: application/7/device/00aedb3da649cb23/rx
206 )))
207
208 (% class="box" %)
209 (((
210 Publish:
211 Format: Top: application/ID/device/ Device EUI/tx
212 Payload: {"confirmed":true or false,"fPort":XX,"data":"xxxx"}
213 Example: Top: application/7/device/00aedb3da649cb23/tx
214 Payload: {"confirmed":true,"fPort":2,"data":"AwEB"}
215 )))
216
217 [[image:image-20220524164829-20.png]]
218
219 MQTT Connect to ChirpStack
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
225 [[image:image-20220524164849-21.png]]
226
227 Choose to Use Hex for Encode
228
229 If we want send downstream hex 030101 to end node, the BASE64 payload is AwEB
230
231 [[image:image-20220524164907-22.png]]
232
233 (((
234 Downlink payload encode javescript code: 可以在网站上运行以下Javsscript代码：
235 )))
236
237 (% class="box" %)
238 (((
239 function sha1_to_base64(sha1)
240 {
241 var digits="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
242 var base64_rep = "";
243 var cnt = 0;
244 var bit_arr = 0;
245 var bit_num = 0;
246 \\ for(var n = 0; n < sha1.length; ++n)
247 {
248 if(sha1[n] >= 'A' && sha1[n] <= 'Z')
249 {
250 ascv = sha1.charCodeAt(n) - 55;
251 }
252 else if(sha1[n] >= 'a' && sha1[n] <= 'z')
253 {
254 ascv = sha1.charCodeAt(n) - 87;
255 }
256 else
257 {
258 ascv = sha1.charCodeAt(n) - 48;
259 }
260 \\ bit_arr = (bit_arr << 4) | ascv;
261 bit_num += 4;
262 if(bit_num >= 6)
263 {
264 bit_num -= 6;        
265 base64_rep += digits[bit_arr >>> bit_num];
266 bit_arr &= ~~(-1 << bit_num);
267 }
268 }
269 \\ if(bit_num > 0)
270 {
271 bit_arr <<= 6 - bit_num;
272 base64_rep += digits[bit_arr];
273 }
274 \\ var padding = base64_rep.length % 4;   
275 \\ if(padding > 0)
276 {
277 for(var n = 0; n < 4 - padding; ++n)
278 {
279 base64_rep += "=";
280 }
281 }
282 return base64_rep;
283 }
284 \\console.log(sha1_to_base64("data"));
285 \\data is downlink payload required by end node.
286 e.g console.log(sha1_to_base64("030101"));
287 ​result: AwEB     
288 AwEB is the 0x030101's base 64 Encode.
289 \\​e.g console.log(sha1_to_base64("030000"));
290 ​result: AwAA     
291 AwAA is 0x030000's base 64 Encode.
292 )))
293
294 == 4.3 Add the decode function in Chirpstack for the payload ==
295
296 User enters the payload code according to the steps.
297
298 [[image:image-20220524165001-23.png]]
299
300 [[image:image-20220524165028-24.png]]
301
302 [[image:image-20220524165100-25.png]]
303
304 [[image:image-20220524165116-26.png]]
305
306 = 5. Multiply Uplink in ChirpStack =
307
308 (((
309 nbtrans field is the value to determine the re-transmission time for unconfirmed uplink data.
310 )))
311
312 (((
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]]
314 )))
315
316 [[image:image-20220524165141-27.png]]
317
318 (((
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.
320 )))
321
322 [[image:image-20220524165158-28.png]]
323
324 (((
325 Above behaviour will cause the platform shows below two cases of error:
326 )))
327
328 (((
329 Error of duplicate Frame Counter
330 )))
331
332 [[image:image-20220524165301-29.png]]
333
334 Duplicate transmission in short time
335
336 [[image:image-20220524165319-30.png]]
337
338 == 5.1 Solution ==
339
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
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.
344 )))
345
346 [[image:image-20220524165339-31.png]]
347
348 installation path:
349
350 [[image:image-20220524165400-32.png]]
351
352 (((
353 2. Environment variable settings:.
354 )))
355
356 (((
357 1) Open Computer -> Properties -> Advanced System Settings -> Environment Variables and add a "new" system variable:
358 )))
359
360 (((
361 2)Set the variable name GOROOT and the variable value C:\Go\ (installation directory)
362 )))
363
364 [[image:image-20220524165433-33.png]]
365
366 3)Modify the system variable Path and add C:\Go\bin\:
367
368 [[image:image-20220524165452-34.png]]
369
370 User variable setting file generation directory: D:\go:
371
372 [[image:image-20220524165517-35.png]]
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
376 The name of the plugin: Example ADR plugin:
377
378 [[image:image-20220524165540-36.png]]
379
380 Set Nbtrans: Nbtrans=1 (Nbtrans is the number of retransmissions, if it is 1, no retransmission, it is recommended to be 1). To enable it, you need to uncomment.
381
382 [[image:image-20220524165557-37.png]]
383
384 4. Compile the ADR configuration file and generate the exe file.
385
386 1) Create a folder named adr-setting
387
388 2) Open the adr-setting folder
389
390 3) Put adr.setting.go in this folder.
391
392 4) Open the computer cmd and run the following commands in sequencecd adr-setting
393
394 go mod init adr-setting
395
396 go get github.com/brocaar/chirpstack-network-server/v3/adr
397
398 go get github.com/hashicorp/go-plugin
399
400 go get adr-setting
401
402 go build
403
404 5) Finally generate this file：
405
406 [[image:image-20220524165623-38.png]]
407
408 5. Add the plugin and run the plugin.
409
410 (((
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 )))
413
414 [[image:image-20220524165641-39.png]]
415
416 (((
417 (((
418 For example: adr_plugins=[“adr-setting”]
419 )))
420 )))
421
422 * (((
423 (((
424 Adding a single plugin format is adr_plugins=["filename"]
425 )))
426 )))
427
428 * (((
429 (((
430 Adding multiple plugins The format is adr_plugins=["file name 1", "file name 2",...]
431 )))
432 )))
433
434 (((
435 (((
436 Finally, re-run chirpstack-network-server.exe, and then select the plugin you just compiled in Device-profiles,
437 )))
438 )))
439
440 [[image:image-20220524165659-40.png]]
441
442 Finish.
443
444 = 6. Trouble Shooting =
445
446 == 6.1 MIC Mismatch or MIC Failed ==
447
448 (((
449 When the device is registered or the device is working normally, the problem of MIC mismatch and MIC failed occurs.
450 )))
451
452 (((
453 Under normal circumstances, users need to change the APPKEY to solve this problem.
454 )))

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