Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 21.3 >
edited by Xiaoling
on 2023/04/20 17:54
To version < 14.8 >
edited by Xiaoling
on 2022/07/22 11:32
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1 -**Table of Contents:**
1 +*
2 +** Table of** **Contents:
2 2  
3 3  {{toc/}}
4 4  
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10 10  The Dragino LoRaWAN gateway can commuicate with LoRaWAN ABP End Node without the need of LoRaWAN server. It can be used in some cases such as:
11 11  
12 12  * No internet connection.
13 -
14 14  * User wants to get data forward in gateway and forward to their server base on MQTT/HTTP, etc. (Combine ABP communication method and [[MQTT forward together>>MQTT Forward Instruction]]).
15 15  
16 16  (((
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17 17  The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
18 18  )))
19 19  
20 -* LoRaWAN End Node in ABP mode. Make sure your end node works in this mode. End node most are default set to OTAA mode
20 +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
21 +1. LoRaWAN Gateway model: [[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.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]] ,[[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]]
22 +1. Firmware version for below instruction:**[[(% style="color:purple" %)Since LG02_LG08~~-~~-build-v5.4.1593400722-20200629-1120>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]](%%)**
21 21  
22 -* LoRaWAN Gateway model: [[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.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]] ,[[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]]
23 -
24 -* Firmware version for below instruction:  **[[(% style="color:purple" %)Since LG02_LG08~~-~~-build-v5.4.1593400722-20200629-1120>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]](%%)**
25 -
26 -
27 27  = 2. How it works =
28 28  
29 29  
... ... @@ -47,10 +47,8 @@
47 47  
48 48  We need to input above keys in LG308 and enable ABP decryption.
49 49  
50 -
51 51  [[image:image-20220527161119-1.png]]
52 52  
53 -
54 54  Input the ABP keys in LG308
55 55  
56 56  
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60 60  Now when this End Node (Dev Addr=2602111D) send a uplink packet. When this packet arrive LG308, LG308 will decode it and put the decode data on the file /var/iot/channels/2602111D . So we have this data for further process with other applications in LG308.
61 61  
62 62  (((
63 -We can see the log of LG308 to know this packet arrive.
64 -
65 -
58 +We can see the log of LG308 to know this packet arrive
66 66  )))
67 67  
68 68  [[image:image-20220527161149-2.png]]
69 69  
70 -
71 71  LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
72 72  
73 73  
74 -
75 75  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
76 76  
77 77  (% class="box" %)
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83 83  )))
84 84  
85 85  * **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
86 -
87 87  * **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
88 -
89 89  * **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
90 90  
91 91  (% class="box" %)
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98 98  000001c
99 99  )))
100 100  
101 -
102 102  (% class="box" %)
103 103  (((
104 104  (% style="color:red" %)**Notice 2**(%%): The upstream payload length should match the LoRaWAN length requirement (max length depends on Frequency and DR), otherwise the gateway can't decode the payload.
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147 147  === 2.2.2 How to Decode My End Node ===
148 148  
149 149  
150 -**1.** Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
138 +1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
151 151  
152 -**2. **Don't choose MQTT service, use LoRaWAN.
140 +2/ Don't choose MQTT service, use LoRaWAN.
153 153  
154 -**3.** When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
142 +3/ When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
155 155  
156 -**4.** Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
144 +4/ Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
157 157  
158 158  {{{/etc/lora/decoder/Dragino_LHT65 END_NODE_DEV_ADDR
159 159  }}}
160 160  
161 -**5.** What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload.
149 +5/ What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload. Some notice:
162 162  
163 -
164 -(% style="color:red" %)
165 -**Some notice:**
166 -
167 167  * RSSI and SNR are added when gateway receive the packet, so there is always this field.
168 -
169 169  * If you rename the file, please make it executable.
170 -
171 171  * See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
172 -
173 173  * Lua json module: [[http:~~/~~/json.luaforge.net/>>url:http://json.luaforge.net/]]
174 -
175 175  * the last line return is what will be used for MQTT
176 -
177 177  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
178 178  
158 +
159 +
179 179  == 2.2 Downstream ==
180 180  
181 181  
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185 185  
186 186  (% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
187 187  
169 +Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
188 188  
189 -Since fimware > [[Dragino lgw~~-~~-build-v5.4.1668567157>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LG308-LG301/Firmware/Release/]] . Support more option
171 +(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
190 190  
191 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow,Fport**
192 -
193 193  * **dev_addr:** Inptu the device address
194 -
195 195  * **imme/time:**
196 196  ** imme: send downstream immediately,For Class C end node.
197 197  ** time: send downstream after receive device's uplink. For Class A end node
198 -
199 199  * **txt/hex:**
200 200  ** txt: send payload in ASCII
201 201  ** hex: send payload in HEX
202 -
203 203  * **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
204 -
205 205  * **txpw:** Transmit Power. example: 20
206 -
207 207  * **txbw:** bandwidth:
208 208  ** 1: 500 kHz
209 209  ** 2: 250 kHz
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210 210  ** 3: 125 kHz
211 211  ** 4: 62.5 kHz
212 212  * **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
213 -
214 214  * **Frequency:** Transmit Frequency: example: 923300000
215 -
216 216  * **rxwindow:** transmit on Rx1Window or Rx2Window.
217 217  
218 -* **Fport: **Transmit port,example:8
219 219  
220 -
221 -
222 222  (% style="color:blue" %)**Completely exmaple:**
223 223  
224 224  * **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
195 +* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
225 225  
226 -* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2,8 > /var/iot/push/test
227 227  
228 228  
199 +(% style="color:#037691" %)**Downstream Frequency**
229 229  
230 -Downstream(% style="color:#037691" %)** Frequency:**
231 -
232 232  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
233 233  
234 234  * EU868: 869.525Mhz, DR0(SF12BW125)
235 -
236 236  * US915: 923.3Mhz, SF12 BW500
237 -
238 238  * CN470: 505.3Mhz, SF12 BW125
239 -
240 240  * AU915: 923.3Mhz, SF12 BW500
241 -
242 242  * AS923: 923.2Mhz, SF10 BW125
243 -
244 244  * KR920: 921.9Mhz, SF12 BW125
245 -
246 246  * IN865: 866.55Mhz, SF10 BW125
247 -
248 248  * RU864: 869.1Mhz, SF12 BW125
249 249  
212 +
213 +
250 250  (% style="color:#037691" %)**Examples:**
251 251  
252 252  (% class="box" %)
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253 253  (((
254 254  we can use echo command to create files in LG308 for downstream.
255 255  root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
220 +)))
256 256  
257 -
222 +(% class="box" %)
223 +(((
258 258  **1)** From logread -f of gateway, we can see it has been added as pedning.
259 259  lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
260 260  lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
261 261  lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
228 +)))
262 262  
263 -
230 +(% class="box" %)
231 +(((
264 264  **2)** When there is an upstrea from end node, this downstream will be sent and shows:
265 265  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
266 266  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
235 +)))
267 267  
268 -
237 +(% class="box" %)
238 +(((
269 269  **3)** and the end node will got:
270 270  [5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
271 271  [5764827]TX on freq 905300000 Hz at DR 0
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278 278  Rssi= -41
279 279  Receive data
280 280  (% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
251 +)))
281 281  
282 -
253 +(% class="box" %)
254 +(((
283 283  **4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
284 284  [5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
285 285  [5955879]TX on freq 904100000 Hz at DR 0
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338 338  #  whether the Device 2 has been changed.//
339 339  )))
340 340  
313 +**~1. Input keys**
341 341  
342 -(% style="color:blue" %)**1. Input keys**
343 -
344 -
345 345  [[image:image-20220527162450-3.png]]
346 346  
347 347  Input Keys in LPS8
348 348  
349 349  
320 +**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
350 350  
351 -(% style="color:blue" %)**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
322 +**3. Choose Built-in server**
352 352  
353 -
354 -(% style="color:blue" %)**3. Choose Built-in server**
355 -
356 -
357 357  [[image:image-20220527162518-4.png]]
358 358  
359 359  Choose Built-in server
360 360  
361 361  
329 +**4. Run the script.**
362 362  
363 -(% style="color:blue" %)**4. Run the script.**
331 +[[image:image-20220527162552-5.png]]
364 364  
365 -
366 -[[image:image-20220722115213-2.png]]
367 -
368 368  Run the script
369 369  
370 370  
336 +**5. Output:**
371 371  
372 -(% style="color:blue" %)**5. Output:**
338 +[[image:image-20220527162619-6.png]]
373 373  
374 -
375 -[[image:image-20220722115133-1.png]]
376 -
377 377  Output from LPS8
378 378  
379 379  
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387 387  
388 388  Full instruction video inlcude how to write scripts to fit server needed is here:
389 389  
353 +
390 390  (% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
391 391  
392 -(% style="display:none" %) (%%)
393 393  
394 394  (% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
395 395  
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402 402  
403 403  
404 404  
405 -(% style="color:blue" %)**run socket tool in PC**
368 +**run socket tool in PC**
406 406  
407 -
408 408  [[image:image-20220527163028-9.png]]
409 409  
410 410  
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412 412  
413 413  
414 414  
415 -(% style="color:blue" %)**Input Server address and port**
377 +**Input Server address and port**
416 416  
417 -
418 418  [[image:image-20220527163106-10.png]]
419 419  
420 420  Input Server address and port
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421 421  
422 422  
423 423  
424 -(% style="color:blue" %)**See value receive in socket tool:**
385 +**See value receive in socket tool:**
425 425  
387 +[[image:image-20220527163144-11.png]]
426 426  
427 -[[image:image-20220527163144-11.png||height="502" width="1371"]]
428 -
429 429  value receive in socket tool
430 430  
431 431  
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