Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 14.6 >
edited by Xiaoling
on 2022/06/01 11:13
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 -
23 23  = 2. How it works =
24 24  
25 25  
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41 41  
42 42  We need to input above keys in LG308 and enable ABP decryption.
43 43  
44 -[[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"]]
45 45  
46 46  Input the ABP keys in LG308
47 47  
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54 54  We can see the log of LG308 to know this packet arrive
55 55  )))
56 56  
57 -[[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"]]
58 58  
59 59  LG308 log by "logread -f" command
60 60  
... ... @@ -64,8 +64,8 @@
64 64  (% class="box" %)
65 65  (((
66 66  root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
67 -0000000 (% style="color:#037691" %)**4646 4646 4646 3946 3030 3030 3030 3546**(%%)      ~-~-> Got RSSI and SNR    
68 -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
69 69  000001c
70 70  )))
71 71  
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75 75  
76 76  (% class="box" %)
77 77  (((
78 -(% 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:
79 -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
80 80  root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
81 81  0000000 4646 4646 4646 3946 3030 3030 3030 3546
82 82  0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"    
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85 85  
86 86  (% class="box" %)
87 87  (((
88 -(% 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.
89 89  )))
90 90  
91 -
92 92  === 2.2.1 Decode Method ===
93 93  
94 -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.
95 95  
96 96  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
97 97  
... ... @@ -109,7 +109,7 @@
109 109  (((
110 110  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
111 111  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
112 -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
113 113  )))
114 114  
115 115  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
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118 118  (((
119 119  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
120 120  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
121 -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,
122 -"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}
123 123  )))
124 124  
125 125  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
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147 147  * the last line return is what will be used for MQTT
148 148  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
149 149  
150 -
151 151  == 2.2 Downstream ==
152 152  
153 153  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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154 154  
155 155  The file should use below format:
156 156  
157 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
153 +(% class="mark" %)**dev_addr,imme/time,txt/hex,payload**
158 158  
159 159  Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
160 160  
161 -(% 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**
162 162  
163 163  * dev_addr: Inptu the device address
164 164  * imme/time:
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183 183  * Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
184 184  * New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
185 185  
182 +(% class="mark" %)**Downstream Frequency**
186 186  
187 -(% style="color:#037691" %)**Downstream Frequency**
188 -
189 189  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
190 190  
191 191  * EU868: 869.525Mhz, DR0(SF12BW125)
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197 197  * IN865: 866.55Mhz, SF10 BW125
198 198  * RU864: 869.1Mhz, SF12 BW125
199 199  
195 +(% class="mark" %)**Examples:**
200 200  
201 -(% style="color:#037691" %)**Examples:**
202 -
203 203  (% class="box" %)
204 204  (((
205 205  we can use echo command to create files in LG308 for downstream.
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234 234  [5767501]rxDone
235 235  Rssi= -41
236 236  Receive data
237 -(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
231 +2:12345678    ~-~-> Hex
238 238  )))
239 239  
240 240  (% class="box" %)
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250 250  [5958595]rxDone
251 251  Rssi= -37
252 252  Receive data
253 -(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
247 +2:3132333435363738 ~-~-> ASCII string "12345678"
254 254  )))
255 255  
256 -
257 257  = 3. Example 1: Communicate with LT-22222-L =
258 258  
259 259  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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298 298  
299 299  ~1. Input keys
300 300  
301 -[[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"]]
302 302  
303 303  Input Keys in LPS8
304 304  
305 -
306 306  2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
307 307  
308 308  3. Choose Built-in server
309 309  
310 -[[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"]]
311 311  
312 312  Choose Built-in server
313 313  
314 -
315 315  4. Run the script.
316 316  
317 -[[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"]]
318 318  
319 319  Run the script
320 320  
321 -
322 322  5. Output:
323 323  
324 -[[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"]]
325 325  
326 326  Output from LPS8
327 327  
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328 328  
329 329  = 4. Example 2: Communicate to TCP Server =
330 330  
331 -[[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"]]
332 332  
333 333  Network Structure
334 334  
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336 336  Full instruction video inlcude how to write scripts to fit server needed is here:
337 337  
338 338  
339 -(% 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]]
340 340  
331 +(% class="mark" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
341 341  
342 -(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
343 -
344 344  Assume we already set up ABP keys in the gateway:
345 345  
346 -[[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"]]
347 347  
348 348  Input Keys in LPS8
349 349  
350 -
351 351  run socket tool in PC
352 352  
353 -[[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"]]
354 354  
355 -
356 356  Socket tool
357 357  
358 358  
359 359  Input Server address and port
360 360  
361 -[[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"]]
362 362  
363 363  Input Server address and port
364 364  
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365 365  
366 366  See value receive in socket tool. :
367 367  
368 -[[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"]]
369 369  
370 370  value receive in socket tool
371 371  
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