Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 3.3 >
edited by Xiaoling
on 2022/05/27 16:14
To version < 14.2 >
edited by Xiaoling
on 2022/05/31 10:07
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8 8  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:
9 9  
10 10  * No internet connection.
11 -* 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>>url:https://wiki.dragino.com/index.php/MQTT_Forward_Instruction]]).
11 +* 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]]).
12 12  
13 13  (((
14 14  The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
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18 18  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]]
19 19  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 20  
21 +
21 21  = 2. How it works =
22 22  
23 23  
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74 74  (% class="box" %)
75 75  (((
76 76  (% 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:
77 -in LGT92, use **(% style="color:#037691" %)AT+SEND=12:hello world** (%%)to send ASCII string
78 +in LGT92, use (% style="color:#037691" %)**AT+SEND=12:hello world** (%%)to send ASCII string
78 78  root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
79 79  0000000 4646 4646 4646 3946 3030 3030 3030 3546
80 80  0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"    
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86 86  (% style="color:#037691" %)**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.
87 87  )))
88 88  
90 +
89 89  === 2.2.1 Decode Method ===
90 90  
91 -The decode methods: **ASCII String, Decode_LHT65** doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
93 +The decode methods: (% style="color:#037691" %)**ASCII String, Decode_LHT65**(%%) doesn't affect how the sensor data is stored, they are to define how should the sensor data to be sent.
92 92  
93 93  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
94 94  
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106 106  (((
107 107  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
108 108  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
109 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
111 +Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: (% style="color:#037691" %)**ffffffe700000048ccd17fff7fff017fff7fff00**
110 110  )))
111 111  
112 112  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
... ... @@ -115,8 +115,8 @@
115 115  (((
116 116  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
117 117  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
118 -Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: {"Hum_SHT":32.7,"BatV":3.281,"TempC_DS":32.9,
119 -"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}
120 +Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]:** (% style="color:#037691" %){"Hum_SHT":32.7,"BatV":3.281,"TempC_DS":32.9,
121 +"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}(%%)**
120 120  )))
121 121  
122 122  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
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144 144  * the last line return is what will be used for MQTT
145 145  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
146 146  
149 +
147 147  == 2.2 Downstream ==
148 148  
149 149  In LG308, we can create a file in the directory /var/iot/push for downstream purpose. We recommend using each command to generate this file. This file will be used for transmission and auto-deleted after used
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150 150  
151 151  The file should use below format:
152 152  
153 -(% class="mark" %)**dev_addr,imme/time,txt/hex,payload**
156 +(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
154 154  
155 155  Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
156 156  
157 -(% class="mark" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
160 +(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
158 158  
159 159  * dev_addr: Inptu the device address
160 160  * imme/time:
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179 179  * Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
180 180  * New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
181 181  
182 -(% class="mark" %)**Downstream Frequency**
185 +(% style="color:#037691" %)**Downstream Frequency**
183 183  
184 184  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
185 185  
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192 192  * IN865: 866.55Mhz, SF10 BW125
193 193  * RU864: 869.1Mhz, SF12 BW125
194 194  
195 -(% class="mark" %)**Examples:**
198 +(% style="color:#037691" %)**Examples:**
196 196  
197 197  (% class="box" %)
198 198  (((
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228 228  [5767501]rxDone
229 229  Rssi= -41
230 230  Receive data
231 -2:12345678    ~-~-> Hex
234 +(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
232 232  )))
233 233  
234 234  (% class="box" %)
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244 244  [5958595]rxDone
245 245  Rssi= -37
246 246  Receive data
247 -2:3132333435363738 ~-~-> ASCII string "12345678"
250 +(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
248 248  )))
249 249  
253 +
250 250  = 3. Example 1: Communicate with LT-22222-L =
251 251  
252 252  Script can be download from: [[Example Script 1>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/customized_script/&file=talk_to_lt-22222-l_v0.1.sh]]
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291 291  
292 292  ~1. Input keys
293 293  
294 -[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
298 +[[image:image-20220527162450-3.png]]
295 295  
296 296  Input Keys in LPS8
297 297  
302 +
298 298  2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
299 299  
300 300  3. Choose Built-in server
301 301  
302 -[[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png||height="264" width="600"]]
307 +[[image:image-20220527162518-4.png]]
303 303  
304 304  Choose Built-in server
305 305  
311 +
306 306  4. Run the script.
307 307  
308 -[[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png||height="389" width="600"]]
314 +[[image:image-20220527162552-5.png]]
309 309  
310 310  Run the script
311 311  
318 +
312 312  5. Output:
313 313  
314 -[[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png||height="433" width="600"]]
321 +[[image:image-20220527162619-6.png]]
315 315  
316 316  Output from LPS8
317 317  
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318 318  
319 319  = 4. Example 2: Communicate to TCP Server =
320 320  
321 -[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
328 +[[image:image-20220527162648-7.png]]
322 322  
323 323  Network Structure
324 324  
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326 326  Full instruction video inlcude how to write scripts to fit server needed is here:
327 327  
328 328  
329 -(% class="mark" %)**Video Instruction**: [[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]
336 +(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
330 330  
331 -(% class="mark" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
332 332  
339 +(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
340 +
333 333  Assume we already set up ABP keys in the gateway:
334 334  
335 -[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
343 +[[image:image-20220527162852-8.png]]
336 336  
337 337  Input Keys in LPS8
338 338  
347 +
339 339  run socket tool in PC
340 340  
341 -[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
350 +[[image:image-20220527163028-9.png]]
342 342  
352 +
343 343  Socket tool
344 344  
345 345  
346 346  Input Server address and port
347 347  
348 -[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
358 +[[image:image-20220527163106-10.png]]
349 349  
350 350  Input Server address and port
351 351  
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352 352  
353 353  See value receive in socket tool. :
354 354  
355 -[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
365 +[[image:image-20220527163144-11.png]]
356 356  
357 357  value receive in socket tool
358 358  
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