Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 16.4 >
edited by Xiaoling
on 2022/07/22 11:45
To version < 19.2 >
edited by Xiaoling
on 2022/09/17 16:42
>
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12 12  * No internet connection.
13 13  * 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]]).
14 14  
15 +
16 +
15 15  (((
16 16  The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
17 17  )))
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20 20  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]]
21 21  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/]](%%)**
22 22  
25 +
26 +
27 +
23 23  = 2. How it works =
24 24  
25 25  
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43 43  
44 44  We need to input above keys in LG308 and enable ABP decryption.
45 45  
51 +
46 46  [[image:image-20220527161119-1.png]]
47 47  
54 +
48 48  Input the ABP keys in LG308
49 49  
50 50  
58 +
51 51  == 2.1 Upstream ==
52 52  
53 53  
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54 54  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.
55 55  
56 56  (((
57 -We can see the log of LG308 to know this packet arrive
65 +We can see the log of LG308 to know this packet arrive.
66 +
67 +
58 58  )))
59 59  
60 60  [[image:image-20220527161149-2.png]]
61 61  
72 +
62 62  LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
63 63  
64 64  
76 +
65 65  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
66 66  
67 67  (% class="box" %)
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76 76  * **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
77 77  * **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
78 78  
91 +
92 +
79 79  (% class="box" %)
80 80  (((
81 81  (% style="color:red" %)**Notice 1**(%%): The data file stored in LG308 for the end node is bin file. If the end node sends ASCII string to gateway, the output will as below:
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86 86  000001c
87 87  )))
88 88  
103 +
89 89  (% class="box" %)
90 90  (((
91 91  (% 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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92 92  )))
93 93  
94 94  
110 +
95 95  === 2.2.1 Decode Method ===
96 96  
97 97  
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160 160  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
161 161  
162 162  
179 +
180 +
163 163  == 2.2 Downstream ==
164 164  
165 165  
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169 169  
170 170  (% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
171 171  
190 +
172 172  Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
173 173  
174 174  (% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
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200 200  
201 201  
202 202  
203 -(% style="color:#037691" %)**Downstream Frequency**
222 +(% style="color:#037691" %)**Downstream Frequency:**
204 204  
205 205  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
206 206  
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260 260  Rssi= -37
261 261  Receive data
262 262  (% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
263 -
264 -
265 265  )))
266 266  
267 267  
285 +
268 268  = 3. Example 1: Communicate with LT-22222-L =
269 269  
270 270  
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308 308  #  whether the Device 2 has been changed.//
309 309  )))
310 310  
311 -**~1. Input keys**
312 312  
330 +(% style="color:blue" %)**1. Input keys**
331 +
332 +
313 313  [[image:image-20220527162450-3.png]]
314 314  
315 315  Input Keys in LPS8
316 316  
317 317  
318 -**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
319 319  
320 -**3. Choose Built-in server**
339 +(% style="color:blue" %)**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
321 321  
341 +
342 +(% style="color:blue" %)**3. Choose Built-in server**
343 +
344 +
322 322  [[image:image-20220527162518-4.png]]
323 323  
324 324  Choose Built-in server
325 325  
326 326  
327 -**4. Run the script.**
328 328  
329 -[[image:image-20220527162552-5.png]]
351 +(% style="color:blue" %)**4. Run the script.**
330 330  
353 +
354 +[[image:image-20220722115213-2.png]]
355 +
331 331  Run the script
332 332  
333 333  
334 -**5. Output:**
335 335  
336 -[[image:image-20220527162619-6.png]]
360 +(% style="color:blue" %)**5. Output:**
337 337  
362 +
363 +[[image:image-20220722115133-1.png]]
364 +
338 338  Output from LPS8
339 339  
340 340  
368 +
341 341  = 4. Example 2: Communicate to TCP Server =
342 342  
343 343  
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363 363  
364 364  
365 365  
366 -**run socket tool in PC**
394 +(% style="color:blue" %)**run socket tool in PC**
367 367  
396 +
368 368  [[image:image-20220527163028-9.png]]
369 369  
370 370  
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372 372  
373 373  
374 374  
375 -**Input Server address and port**
404 +(% style="color:blue" %)**Input Server address and port**
376 376  
406 +
377 377  [[image:image-20220527163106-10.png]]
378 378  
379 379  Input Server address and port
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380 380  
381 381  
382 382  
383 -**See value receive in socket tool:**
413 +(% style="color:blue" %)**See value receive in socket tool:**
384 384  
415 +
385 385  [[image:image-20220527163144-11.png]]
386 386  
387 387  value receive in socket tool
image-20220722115133-1.png
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