Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 17.1 >
edited by Xiaoling
on 2022/07/22 11:51
To version < 21.3 >
edited by Xiaoling
on 2023/04/20 17:54
>
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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 +
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 15  (((
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16 16  The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
17 17  )))
18 18  
19 -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
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 -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/]](%%)**
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
22 22  
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 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/]](%%)**
24 24  
26 +
25 25  = 2. How it works =
26 26  
27 27  
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45 45  
46 46  We need to input above keys in LG308 and enable ABP decryption.
47 47  
50 +
48 48  [[image:image-20220527161119-1.png]]
49 49  
53 +
50 50  Input the ABP keys in LG308
51 51  
52 52  
... ... @@ -56,14 +56,18 @@
56 56  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.
57 57  
58 58  (((
59 -We can see the log of LG308 to know this packet arrive
63 +We can see the log of LG308 to know this packet arrive.
64 +
65 +
60 60  )))
61 61  
62 62  [[image:image-20220527161149-2.png]]
63 63  
70 +
64 64  LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
65 65  
66 66  
74 +
67 67  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
68 68  
69 69  (% class="box" %)
... ... @@ -75,11 +75,11 @@
75 75  )))
76 76  
77 77  * **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
86 +
78 78  * **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
88 +
79 79  * **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
80 80  
81 -
82 -
83 83  (% class="box" %)
84 84  (((
85 85  (% 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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90 90  000001c
91 91  )))
92 92  
101 +
93 93  (% class="box" %)
94 94  (((
95 95  (% 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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135 135  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
136 136  
137 137  
138 -
139 139  === 2.2.2 How to Decode My End Node ===
140 140  
141 141  
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157 157  **Some notice:**
158 158  
159 159  * RSSI and SNR are added when gateway receive the packet, so there is always this field.
168 +
160 160  * If you rename the file, please make it executable.
170 +
161 161  * See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
172 +
162 162  * Lua json module: [[http:~~/~~/json.luaforge.net/>>url:http://json.luaforge.net/]]
174 +
163 163  * the last line return is what will be used for MQTT
176 +
164 164  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
165 165  
166 -
167 -
168 -
169 169  == 2.2 Downstream ==
170 170  
171 171  
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175 175  
176 176  (% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
177 177  
178 -Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
179 179  
180 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
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
181 181  
191 +(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow,Fport**
192 +
182 182  * **dev_addr:** Inptu the device address
194 +
183 183  * **imme/time:**
184 184  ** imme: send downstream immediately,For Class C end node.
185 185  ** time: send downstream after receive device's uplink. For Class A end node
198 +
186 186  * **txt/hex:**
187 187  ** txt: send payload in ASCII
188 188  ** hex: send payload in HEX
202 +
189 189  * **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
204 +
190 190  * **txpw:** Transmit Power. example: 20
206 +
191 191  * **txbw:** bandwidth:
192 192  ** 1: 500 kHz
193 193  ** 2: 250 kHz
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194 194  ** 3: 125 kHz
195 195  ** 4: 62.5 kHz
196 196  * **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
213 +
197 197  * **Frequency:** Transmit Frequency: example: 923300000
215 +
198 198  * **rxwindow:** transmit on Rx1Window or Rx2Window.
199 199  
218 +* **Fport: **Transmit port,example:8
200 200  
201 201  
202 202  
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203 203  (% style="color:blue" %)**Completely exmaple:**
204 204  
205 205  * **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
206 -* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
207 207  
226 +* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2,8 > /var/iot/push/test
208 208  
209 209  
210 210  
211 -(% style="color:#037691" %)**Downstream Frequency**
230 +Downstream(% style="color:#037691" %)** Frequency:**
212 212  
213 213  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
214 214  
215 215  * EU868: 869.525Mhz, DR0(SF12BW125)
235 +
216 216  * US915: 923.3Mhz, SF12 BW500
237 +
217 217  * CN470: 505.3Mhz, SF12 BW125
239 +
218 218  * AU915: 923.3Mhz, SF12 BW500
241 +
219 219  * AS923: 923.2Mhz, SF10 BW125
243 +
220 220  * KR920: 921.9Mhz, SF12 BW125
245 +
221 221  * IN865: 866.55Mhz, SF10 BW125
247 +
222 222  * RU864: 869.1Mhz, SF12 BW125
223 223  
224 -
225 -
226 -
227 227  (% style="color:#037691" %)**Examples:**
228 228  
229 229  (% class="box" %)
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316 316  )))
317 317  
318 318  
319 -**~1. Input keys**
342 +(% style="color:blue" %)**1. Input keys**
320 320  
344 +
321 321  [[image:image-20220527162450-3.png]]
322 322  
323 323  Input Keys in LPS8
324 324  
325 325  
326 -**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
327 327  
351 +(% style="color:blue" %)**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
328 328  
329 -**3. Choose Built-in server**
330 330  
354 +(% style="color:blue" %)**3. Choose Built-in server**
355 +
356 +
331 331  [[image:image-20220527162518-4.png]]
332 332  
333 333  Choose Built-in server
334 334  
335 335  
336 -**4. Run the script.**
337 337  
338 -[[image:image-20220527162552-5.png]]
363 +(% style="color:blue" %)**4. Run the script.**
339 339  
365 +
366 +[[image:image-20220722115213-2.png]]
367 +
340 340  Run the script
341 341  
342 342  
343 -**5. Output:**
344 344  
345 -[[image:image-20220527162619-6.png]]
372 +(% style="color:blue" %)**5. Output:**
346 346  
374 +
375 +[[image:image-20220722115133-1.png]]
376 +
347 347  Output from LPS8
348 348  
349 349  
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357 357  
358 358  Full instruction video inlcude how to write scripts to fit server needed is here:
359 359  
360 -
361 361  (% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
362 362  
392 +(% style="display:none" %) (%%)
363 363  
364 364  (% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
365 365  
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372 372  
373 373  
374 374  
375 -**run socket tool in PC**
405 +(% style="color:blue" %)**run socket tool in PC**
376 376  
407 +
377 377  [[image:image-20220527163028-9.png]]
378 378  
379 379  
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381 381  
382 382  
383 383  
384 -**Input Server address and port**
415 +(% style="color:blue" %)**Input Server address and port**
385 385  
417 +
386 386  [[image:image-20220527163106-10.png]]
387 387  
388 388  Input Server address and port
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389 389  
390 390  
391 391  
392 -**See value receive in socket tool:**
424 +(% style="color:blue" %)**See value receive in socket tool:**
393 393  
394 -[[image:image-20220527163144-11.png]]
395 395  
427 +[[image:image-20220527163144-11.png||height="502" width="1371"]]
428 +
396 396  value receive in socket tool
397 397  
398 398  
image-20220722115213-2.png
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1 +XWiki.Xiaoling
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