Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 16.2 >
edited by Xiaoling
on 2022/07/22 11:41
To version < 21.4 >
edited by Xiaoling
on 2023/04/20 18:11
>
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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  (((
... ... @@ -16,11 +16,14 @@
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/]](%%)**
25 +
26 +
27 +
24 24  = 2. How it works =
25 25  
26 26  
... ... @@ -44,8 +44,10 @@
44 44  
45 45  We need to input above keys in LG308 and enable ABP decryption.
46 46  
51 +
47 47  [[image:image-20220527161119-1.png]]
48 48  
54 +
49 49  Input the ABP keys in LG308
50 50  
51 51  
... ... @@ -55,14 +55,18 @@
55 55  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.
56 56  
57 57  (((
58 -We can see the log of LG308 to know this packet arrive
64 +We can see the log of LG308 to know this packet arrive.
65 +
66 +
59 59  )))
60 60  
61 61  [[image:image-20220527161149-2.png]]
62 62  
71 +
63 63  LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
64 64  
65 65  
75 +
66 66  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
67 67  
68 68  (% class="box" %)
... ... @@ -74,7 +74,9 @@
74 74  )))
75 75  
76 76  * **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
87 +
77 77  * **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
89 +
78 78  * **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
79 79  
80 80  (% class="box" %)
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87 87  000001c
88 88  )))
89 89  
102 +
90 90  (% class="box" %)
91 91  (((
92 92  (% 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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132 132  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
133 133  
134 134  
135 -
136 136  === 2.2.2 How to Decode My End Node ===
137 137  
138 138  
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154 154  **Some notice:**
155 155  
156 156  * RSSI and SNR are added when gateway receive the packet, so there is always this field.
169 +
157 157  * If you rename the file, please make it executable.
171 +
158 158  * See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
173 +
159 159  * Lua json module: [[http:~~/~~/json.luaforge.net/>>url:http://json.luaforge.net/]]
175 +
160 160  * the last line return is what will be used for MQTT
177 +
161 161  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
162 162  
163 163  
... ... @@ -171,19 +171,25 @@
171 171  
172 172  (% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
173 173  
174 -Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
175 175  
176 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
192 +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
177 177  
194 +(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow,Fport**
195 +
178 178  * **dev_addr:** Inptu the device address
197 +
179 179  * **imme/time:**
180 180  ** imme: send downstream immediately,For Class C end node.
181 181  ** time: send downstream after receive device's uplink. For Class A end node
201 +
182 182  * **txt/hex:**
183 183  ** txt: send payload in ASCII
184 184  ** hex: send payload in HEX
205 +
185 185  * **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
207 +
186 186  * **txpw:** Transmit Power. example: 20
209 +
187 187  * **txbw:** bandwidth:
188 188  ** 1: 500 kHz
189 189  ** 2: 250 kHz
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190 190  ** 3: 125 kHz
191 191  ** 4: 62.5 kHz
192 192  * **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
216 +
193 193  * **Frequency:** Transmit Frequency: example: 923300000
218 +
194 194  * **rxwindow:** transmit on Rx1Window or Rx2Window.
195 195  
221 +* **Fport: **Transmit port,example:8
222 +
223 +
196 196  (% style="color:blue" %)**Completely exmaple:**
197 197  
198 198  * **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
199 -* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
200 200  
201 -(% style="color:#037691" %)**Downstream Frequency**
228 +* **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2,8 > /var/iot/push/test
202 202  
230 +
231 +Downstream(% style="color:#037691" %)** Frequency:**
232 +
203 203  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
204 204  
205 205  * EU868: 869.525Mhz, DR0(SF12BW125)
236 +
206 206  * US915: 923.3Mhz, SF12 BW500
238 +
207 207  * CN470: 505.3Mhz, SF12 BW125
240 +
208 208  * AU915: 923.3Mhz, SF12 BW500
242 +
209 209  * AS923: 923.2Mhz, SF10 BW125
244 +
210 210  * KR920: 921.9Mhz, SF12 BW125
246 +
211 211  * IN865: 866.55Mhz, SF10 BW125
248 +
212 212  * RU864: 869.1Mhz, SF12 BW125
213 213  
251 +
252 +
214 214  (% style="color:#037691" %)**Examples:**
215 215  
216 216  (% class="box" %)
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217 217  (((
218 218  we can use echo command to create files in LG308 for downstream.
219 219  root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
220 -)))
221 221  
222 -(% class="box" %)
223 -(((
260 +
224 224  **1)** From logread -f of gateway, we can see it has been added as pedning.
225 225  lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
226 226  lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
227 227  lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
228 -)))
229 229  
230 -(% class="box" %)
231 -(((
266 +
232 232  **2)** When there is an upstrea from end node, this downstream will be sent and shows:
233 233  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
234 234  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
235 -)))
236 236  
237 -(% class="box" %)
238 -(((
271 +
239 239  **3)** and the end node will got:
240 240  [5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
241 241  [5764827]TX on freq 905300000 Hz at DR 0
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248 248  Rssi= -41
249 249  Receive data
250 250  (% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
251 -)))
252 252  
253 -(% class="box" %)
254 -(((
285 +
255 255  **4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
256 256  [5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
257 257  [5955879]TX on freq 904100000 Hz at DR 0
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310 310  #  whether the Device 2 has been changed.//
311 311  )))
312 312  
313 -**~1. Input keys**
314 314  
345 +(% style="color:blue" %)**1. Input keys**
346 +
347 +
315 315  [[image:image-20220527162450-3.png]]
316 316  
317 317  Input Keys in LPS8
318 318  
319 319  
320 -**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
321 321  
322 -**3. Choose Built-in server**
354 +(% style="color:blue" %)**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
323 323  
356 +
357 +(% style="color:blue" %)**3. Choose Built-in server**
358 +
359 +
324 324  [[image:image-20220527162518-4.png]]
325 325  
326 326  Choose Built-in server
327 327  
328 328  
329 -**4. Run the script.**
330 330  
331 -[[image:image-20220527162552-5.png]]
366 +(% style="color:blue" %)**4. Run the script.**
332 332  
368 +
369 +[[image:image-20220722115213-2.png]]
370 +
333 333  Run the script
334 334  
335 335  
336 -**5. Output:**
337 337  
338 -[[image:image-20220527162619-6.png]]
375 +(% style="color:blue" %)**5. Output:**
339 339  
377 +
378 +[[image:image-20220722115133-1.png]]
379 +
340 340  Output from LPS8
341 341  
342 342  
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350 350  
351 351  Full instruction video inlcude how to write scripts to fit server needed is here:
352 352  
353 -
354 354  (% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
355 355  
395 +(% style="display:none" %) (%%)
356 356  
357 357  (% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
358 358  
... ... @@ -365,8 +365,9 @@
365 365  
366 366  
367 367  
368 -**run socket tool in PC**
408 +(% style="color:blue" %)**run socket tool in PC**
369 369  
410 +
370 370  [[image:image-20220527163028-9.png]]
371 371  
372 372  
... ... @@ -374,8 +374,9 @@
374 374  
375 375  
376 376  
377 -**Input Server address and port**
418 +(% style="color:blue" %)**Input Server address and port**
378 378  
420 +
379 379  [[image:image-20220527163106-10.png]]
380 380  
381 381  Input Server address and port
... ... @@ -382,10 +382,11 @@
382 382  
383 383  
384 384  
385 -**See value receive in socket tool:**
427 +(% style="color:blue" %)**See value receive in socket tool:**
386 386  
387 -[[image:image-20220527163144-11.png]]
388 388  
430 +[[image:image-20220527163144-11.png||height="502" width="1371"]]
431 +
389 389  value receive in socket tool
390 390  
391 391  
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