Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 14.2 >
edited by Xiaoling
on 2022/05/31 10:07
To version < 3.1 >
edited by Xiaoling
on 2022/05/27 16:11
>
Change comment: Uploaded new attachment "image-20220527161149-2.png", version {1}

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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>>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>>url:https://wiki.dragino.com/index.php/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 -
22 22  = 2. How it works =
23 23  
24 24  
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40 40  
41 41  We need to input above keys in LG308 and enable ABP decryption.
42 42  
43 -[[image:image-20220527161119-1.png]]
42 +[[image:https://wiki.dragino.com/images/thumb/5/55/LG308_MQTT_1.png/600px-LG308_MQTT_1.png||height="329" width="600"]]
44 44  
45 45  Input the ABP keys in LG308
46 46  
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53 53  We can see the log of LG308 to know this packet arrive
54 54  )))
55 55  
56 -[[image:image-20220527161149-2.png]]
55 +[[image:https://wiki.dragino.com/images/thumb/1/16/ABP_DECODE_2.png/600px-ABP_DECODE_2.png||height="205" width="600"]]
57 57  
58 58  LG308 log by "logread -f" command
59 59  
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63 63  (% class="box" %)
64 64  (((
65 65  root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
66 -0000000 (% style="color:#037691" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR    
67 -0000010 (% style="color:#037691" %)**cc0c 0b63 0266 017f ff7f ff00 **(%%) ~-~-> Payload
65 +0000000 (% class="mark" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR    
66 +0000010 (% class="mark" %)**cc0c 0b63 0266 017f ff7f ff00 **(%%) ~-~-> Payload
68 68  000001c
69 69  )))
70 70  
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74 74  
75 75  (% class="box" %)
76 76  (((
77 -(% 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:
78 -in LGT92, use (% style="color:#037691" %)**AT+SEND=12:hello world** (%%)to send ASCII string
76 +(% class="mark" %)**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 **AT+SEND=12**:hello world to send ASCII string
79 79  root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
80 80  0000000 4646 4646 4646 3946 3030 3030 3030 3546
81 81  0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"    
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84 84  
85 85  (% class="box" %)
86 86  (((
87 -(% 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.
86 +(% class="mark" %)**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.
88 88  )))
89 89  
90 -
91 91  === 2.2.1 Decode Method ===
92 92  
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.
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.
94 94  
95 95  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
96 96  
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108 108  (((
109 109  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
110 110  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
111 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: (% style="color:#037691" %)**ffffffe700000048ccd17fff7fff017fff7fff00**
109 +Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
112 112  )))
113 113  
114 114  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
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117 117  (((
118 118  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
119 119  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
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}(%%)**
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}
122 122  )))
123 123  
124 124  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
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146 146  * the last line return is what will be used for MQTT
147 147  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
148 148  
149 -
150 150  == 2.2 Downstream ==
151 151  
152 152  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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153 153  
154 154  The file should use below format:
155 155  
156 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
153 +(% class="mark" %)**dev_addr,imme/time,txt/hex,payload**
157 157  
158 158  Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
159 159  
160 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
157 +(% class="mark" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
161 161  
162 162  * dev_addr: Inptu the device address
163 163  * imme/time:
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182 182  * Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
183 183  * New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
184 184  
185 -(% style="color:#037691" %)**Downstream Frequency**
182 +(% class="mark" %)**Downstream Frequency**
186 186  
187 187  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
188 188  
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195 195  * IN865: 866.55Mhz, SF10 BW125
196 196  * RU864: 869.1Mhz, SF12 BW125
197 197  
198 -(% style="color:#037691" %)**Examples:**
195 +(% class="mark" %)**Examples:**
199 199  
200 200  (% class="box" %)
201 201  (((
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231 231  [5767501]rxDone
232 232  Rssi= -41
233 233  Receive data
234 -(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
231 +2:12345678    ~-~-> Hex
235 235  )))
236 236  
237 237  (% class="box" %)
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247 247  [5958595]rxDone
248 248  Rssi= -37
249 249  Receive data
250 -(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
247 +2:3132333435363738 ~-~-> ASCII string "12345678"
251 251  )))
252 252  
253 -
254 254  = 3. Example 1: Communicate with LT-22222-L =
255 255  
256 256  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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295 295  
296 296  ~1. Input keys
297 297  
298 -[[image:image-20220527162450-3.png]]
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"]]
299 299  
300 300  Input Keys in LPS8
301 301  
302 -
303 303  2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
304 304  
305 305  3. Choose Built-in server
306 306  
307 -[[image:image-20220527162518-4.png]]
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"]]
308 308  
309 309  Choose Built-in server
310 310  
311 -
312 312  4. Run the script.
313 313  
314 -[[image:image-20220527162552-5.png]]
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"]]
315 315  
316 316  Run the script
317 317  
318 -
319 319  5. Output:
320 320  
321 -[[image:image-20220527162619-6.png]]
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"]]
322 322  
323 323  Output from LPS8
324 324  
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325 325  
326 326  = 4. Example 2: Communicate to TCP Server =
327 327  
328 -[[image:image-20220527162648-7.png]]
321 +[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
329 329  
330 330  Network Structure
331 331  
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333 333  Full instruction video inlcude how to write scripts to fit server needed is here:
334 334  
335 335  
336 -(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
329 +(% class="mark" %)**Video Instruction**: [[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]
337 337  
331 +(% class="mark" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
338 338  
339 -(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
340 -
341 341  Assume we already set up ABP keys in the gateway:
342 342  
343 -[[image:image-20220527162852-8.png]]
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"]]
344 344  
345 345  Input Keys in LPS8
346 346  
347 -
348 348  run socket tool in PC
349 349  
350 -[[image:image-20220527163028-9.png]]
341 +[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
351 351  
352 -
353 353  Socket tool
354 354  
355 355  
356 356  Input Server address and port
357 357  
358 -[[image:image-20220527163106-10.png]]
348 +[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
359 359  
360 360  Input Server address and port
361 361  
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362 362  
363 363  See value receive in socket tool. :
364 364  
365 -[[image:image-20220527163144-11.png]]
355 +[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
366 366  
367 367  value receive in socket tool
368 368  
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