Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 16.1 >
edited by Xiaoling
on 2022/07/22 11:33
To version < 3.5 >
edited by Xiaoling
on 2022/05/27 16:17
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1 -**Table of Contents:**
1 + **Contents:**
2 2  
3 3  {{toc/}}
4 4  
5 5  
6 -
7 7  = 1. Introduction =
8 8  
9 -
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 -* 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]]).
14 14  
15 15  (((
16 16  The basic of this feature is the decoding of (% style="color:red" %)**LoRaWAN ABP End Node**(%%). Requirements:
... ... @@ -20,9 +20,6 @@
20 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 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/]](%%)**
22 22  
23 -
24 -
25 -
26 26  = 2. How it works =
27 27  
28 28  
... ... @@ -33,15 +33,13 @@
33 33  
34 34  (% class="box infomessage" %)
35 35  (((
36 -**AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
31 +AT+NWKSKEY=72 32 63 95 dd 8f e2 b2 13 66 e4 35 93 8f 55 df
37 37  AT+APPSKEY=b3 17 f8 14 7a 43 27 8a 6a 31 c4 47 3d 55 5d 33
38 -AT+DADDR=2602111D**
33 +AT+DADDR=2602111D
39 39  )))
40 40  
41 41  (((
42 42  and we have the LG308 works and US915 band and support ABP decryption. User can input these keys in LG308 so the LG308 can communicate with LGT92.
43 -
44 -
45 45  )))
46 46  
47 47  We need to input above keys in LG308 and enable ABP decryption.
... ... @@ -53,7 +53,6 @@
53 53  
54 54  == 2.1 Upstream ==
55 55  
56 -
57 57  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.
58 58  
59 59  (((
... ... @@ -62,7 +62,7 @@
62 62  
63 63  [[image:image-20220527161149-2.png]]
64 64  
65 -LG308 log by "(% style="color:red" %)**logread -f**" (%%)command
57 +LG308 log by "logread -f" command
66 66  
67 67  
68 68  The data of End Node is stored in the file /var/iot/channels/2602111D. We can use hexdump command to check it.
... ... @@ -75,14 +75,14 @@
75 75  000001c
76 76  )))
77 77  
78 -* **RSSI**: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
79 -* **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
80 -* **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
70 +* RSSI: 4646 4646 4646 3946 = 0xFFFF FF9F : So RSSI = (0xFFFF FF9F - 0x100000000) = -97
71 +* SNR: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
72 +* Payload: 0xcc0c 0b63 0266 017f ff7f ff00
81 81  
82 82  (% class="box" %)
83 83  (((
84 84  (% 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:
85 -in LGT92, use (% style="color:#037691" %)**AT+SEND=12:hello world** (%%)to send ASCII string
77 +in LGT92, use **(% style="color:#037691" %)AT+SEND=12:hello world** (%%)to send ASCII string
86 86  root@dragino-1d25dc:~~# hexdump /var/iot/channels/2602111D
87 87  0000000 4646 4646 4646 3946 3030 3030 3030 3546
88 88  0000010 6865 6c6c 6f20 776f 726c 6400      ~-~-> Got ASCII code "hello world"    
... ... @@ -91,15 +91,14 @@
91 91  
92 92  (% class="box" %)
93 93  (((
94 -(% 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.
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.
95 95  )))
96 96  
97 97  
98 98  === 2.2.1 Decode Method ===
99 99  
92 +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.
100 100  
101 -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.
102 -
103 103  For example we have a LHT65 , works in ABP mode and gateway successful get the data, which are:
104 104  
105 105  (% class="box" %)
... ... @@ -110,7 +110,6 @@
110 110  000001c
111 111  )))
112 112  
113 -
114 114  If we choose ASCII decoder, the MQTT process will send out with mqtt-data:
115 115  
116 116  (% class="box" %)
... ... @@ -117,10 +117,9 @@
117 117  (((
118 118  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
119 119  Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:decoder: ASCII
120 -Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: (% style="color:#037691" %)**ffffffe700000048ccd17fff7fff017fff7fff00**
110 +Sun Sep 27 04:33:16 2020 user.notice root: [IoT.MQTT]:mqtt_data[-m]: ffffffe700000048ccd17fff7fff017fff7fff00
121 121  )))
122 122  
123 -
124 124  If we choose Decode_LHT65, the MQTT process will send out with mqtt-data
125 125  
126 126  (% class="box" %)
... ... @@ -127,17 +127,15 @@
127 127  (((
128 128  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:pub_topic[-t]: dragino-1baf44/01826108/data
129 129  Sun Sep 27 04:36:45 2020 user.notice root: [IoT.MQTT]:decoder: Dragino_LHT65
130 -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,
131 -"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}(%%)**
119 +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,
120 +"EXT":"Temperature Sensor","RSSI":-24,"TempC_SHT":85.0,"SNR":8.2,"ext_sensor":0}
132 132  )))
133 133  
134 134  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
135 135  
136 136  
137 -
138 138  === 2.2.2 How to Decode My End Node ===
139 139  
140 -
141 141  1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
142 142  
143 143  2/ Don't choose MQTT service, use LoRaWAN.
... ... @@ -158,49 +158,43 @@
158 158  * the last line return is what will be used for MQTT
159 159  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
160 160  
161 -
162 -
163 163  == 2.2 Downstream ==
164 164  
165 -
166 166  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
167 167  
168 168  The file should use below format:
169 169  
170 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload**
154 +(% class="mark" %)**dev_addr,imme/time,txt/hex,payload**
171 171  
172 172  Since fimware > Dragino-v2 lgw-5.4.1608518541 . Support more option
173 173  
174 -(% style="color:#037691" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
158 +(% class="mark" %)**dev_addr,imme/time,txt/hex,payload,txpw,txbw,SF,frequency,rxwindow**
175 175  
176 -* **dev_addr:** Inptu the device address
177 -* **imme/time:**
160 +* dev_addr: Inptu the device address
161 +* imme/time:
178 178  ** imme: send downstream immediately,For Class C end node.
179 179  ** time: send downstream after receive device's uplink. For Class A end node
180 -* **txt/hex:**
164 +* txt/hex:
181 181  ** txt: send payload in ASCII
182 182  ** hex: send payload in HEX
183 -* **payload: **payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
184 -* **txpw:** Transmit Power. example: 20
185 -* **txbw:** bandwidth:
167 +* payload: payload to be sent, payload lenght should match the LoRaWAN protocol requirement.
168 +* txpw: Transmit Power. example: 20
169 +* txbw: bandwidth:
186 186  ** 1: 500 kHz
187 187  ** 2: 250 kHz
188 188  ** 3: 125 kHz
189 189  ** 4: 62.5 kHz
190 -* **SF:** Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
191 -* **Frequency:** Transmit Frequency: example: 923300000
192 -* **rxwindow:** transmit on Rx1Window or Rx2Window.
174 +* SF: Spreading Factor : SF7/SF8/SF9/SF10/SF11/SF12
175 +* Frequency: Transmit Frequency: example: 923300000
176 +* rxwindow: transmit on Rx1Window or Rx2Window.
193 193  
178 +Completely exmaple:
194 194  
180 +* Old version: echo 018193F4,imme,hex,0101 > /var/iot/push/test
181 +* New version: echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
195 195  
196 -(% style="color:blue" %)**Completely exmaple:**
183 +(% class="mark" %)**Downstream Frequency**
197 197  
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 -
201 -
202 -(% style="color:#037691" %)**Downstream Frequency**
203 -
204 204  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
205 205  
206 206  * EU868: 869.525Mhz, DR0(SF12BW125)
... ... @@ -212,9 +212,8 @@
212 212  * IN865: 866.55Mhz, SF10 BW125
213 213  * RU864: 869.1Mhz, SF12 BW125
214 214  
196 +(% class="mark" %)**Examples:**
215 215  
216 -(% style="color:#037691" %)**Examples:**
217 -
218 218  (% class="box" %)
219 219  (((
220 220  we can use echo command to create files in LG308 for downstream.
... ... @@ -223,7 +223,7 @@
223 223  
224 224  (% class="box" %)
225 225  (((
226 -**1)** From logread -f of gateway, we can see it has been added as pedning.
206 +1) From logread -f of gateway, we can see it has been added as pedning.
227 227  lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
228 228  lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
229 229  lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
... ... @@ -231,7 +231,7 @@
231 231  
232 232  (% class="box" %)
233 233  (((
234 -**2)** When there is an upstrea from end node, this downstream will be sent and shows:
214 +2) When there is an upstrea from end node, this downstream will be sent and shows:
235 235  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
236 236  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
237 237  )))
... ... @@ -238,7 +238,7 @@
238 238  
239 239  (% class="box" %)
240 240  (((
241 -**3)** and the end node will got:
221 +3) and the end node will got:
242 242  [5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
243 243  [5764827]TX on freq 905300000 Hz at DR 0
244 244  Update Interval: 60000 ms
... ... @@ -249,12 +249,12 @@
249 249  [5767501]rxDone
250 250  Rssi= -41
251 251  Receive data
252 -(% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
232 +2:12345678    ~-~-> Hex
253 253  )))
254 254  
255 255  (% class="box" %)
256 256  (((
257 -**4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
237 +4) If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
258 258  [5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
259 259  [5955879]TX on freq 904100000 Hz at DR 0
260 260  Update Interval: 60000 ms
... ... @@ -265,18 +265,16 @@
265 265  [5958595]rxDone
266 266  Rssi= -37
267 267  Receive data
268 -(% style="color:#037691" %)**2:3132333435363738**(%%) ~-~-> ASCII string "12345678"
248 +2:3132333435363738 ~-~-> ASCII string "12345678"
269 269  )))
270 270  
271 -
272 272  = 3. Example 1: Communicate with LT-22222-L =
273 273  
274 -
275 275  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]]
276 276  
277 277  (% class="box" %)
278 278  (((
279 -//#!/bin/sh
257 +#!/bin/sh
280 280  # This scripts shows how to use LPS8/LG308/DLOS8 to communicate with two LoRaWAN End Nodes, without the use of internet or LoRaWAN server
281 281  #
282 282  # Hardware Prepare:
... ... @@ -309,44 +309,40 @@
309 309  #  Device1: DI1: ON, DI2: ON , DO1: ON,  DO2: ON
310 310  #  Device2: DI1: OFF, DI2: OFF , DO1: ON,  DO2: ON
311 311  #  So if a person is in the Device 1 location, he can check if the DO LED match DI LEDs on Device 1 to confirm
312 -#  whether the Device 2 has been changed.//
290 +#  whether the Device 2 has been changed.
313 313  )))
314 314  
315 -**~1. Input keys**
293 +~1. Input keys
316 316  
317 -[[image:image-20220527162450-3.png]]
295 +[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
318 318  
319 319  Input Keys in LPS8
320 320  
299 +2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.
321 321  
322 -**2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
301 +3. Choose Built-in server
323 323  
324 -**3. Choose Built-in server**
303 +[[image:https://wiki.dragino.com/images/thumb/d/d7/LPS8_LT-22222_2.png/600px-LPS8_LT-22222_2.png||height="264" width="600"]]
325 325  
326 -[[image:image-20220527162518-4.png]]
327 -
328 328  Choose Built-in server
329 329  
307 +4. Run the script.
330 330  
331 -**4. Run the script.**
309 +[[image:https://wiki.dragino.com/images/thumb/3/39/LPS8_LT-22222_3.png/600px-LPS8_LT-22222_3.png||height="389" width="600"]]
332 332  
333 -[[image:image-20220527162552-5.png]]
334 -
335 335  Run the script
336 336  
313 +5. Output:
337 337  
338 -**5. Output:**
315 +[[image:https://wiki.dragino.com/images/thumb/f/fe/LPS8_LT-22222_4.png/600px-LPS8_LT-22222_4.png||height="433" width="600"]]
339 339  
340 -[[image:image-20220527162619-6.png]]
341 -
342 342  Output from LPS8
343 343  
344 344  
345 345  = 4. Example 2: Communicate to TCP Server =
346 346  
322 +[[image:https://wiki.dragino.com/images/thumb/7/75/LPS8_TCP_0.png/600px-LPS8_TCP_0.png||height="370" width="600"]]
347 347  
348 -[[image:image-20220527162648-7.png]]
349 -
350 350  Network Structure
351 351  
352 352  
... ... @@ -353,42 +353,34 @@
353 353  Full instruction video inlcude how to write scripts to fit server needed is here:
354 354  
355 355  
356 -(% style="color:#037691" %)**Video Instruction**(%%): **[[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]**
330 +(% class="mark" %)**Video Instruction**: [[https:~~/~~/youtu.be/-nevW6U2TsE>>url:https://youtu.be/-nevW6U2TsE]]
357 357  
332 +(% class="mark" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
358 358  
359 -(% style="color:red" %)**Note: Firmware version must be higher than lgw-5.4.1607519907**
360 -
361 -
362 362  Assume we already set up ABP keys in the gateway:
363 363  
364 -[[image:image-20220527162852-8.png]]
336 +[[image:https://wiki.dragino.com/images/thumb/b/bf/LPS8_LT-22222_1.png/600px-LPS8_LT-22222_1.png||height="335" width="600"]]
365 365  
366 366  Input Keys in LPS8
367 367  
340 +run socket tool in PC
368 368  
342 +[[image:https://wiki.dragino.com/images/thumb/4/4b/LPS8_TCP_2.png/600px-LPS8_TCP_2.png||height="212" width="600"]]
369 369  
370 -**run socket tool in PC**
371 -
372 -[[image:image-20220527163028-9.png]]
373 -
374 -
375 375  Socket tool
376 376  
377 377  
347 +Input Server address and port
378 378  
379 -**Input Server address and port**
349 +[[image:https://wiki.dragino.com/images/thumb/c/c6/LPS8_TCP_3.png/600px-LPS8_TCP_3.png||height="306" width="600"]]
380 380  
381 -[[image:image-20220527163106-10.png]]
382 -
383 383  Input Server address and port
384 384  
385 385  
354 +See value receive in socket tool. :
386 386  
387 -**See value receive in socket tool:**
356 +[[image:https://wiki.dragino.com/images/thumb/2/20/LPS8_TCP_4.png/600px-LPS8_TCP_4.png||height="219" width="600"]]
388 388  
389 -[[image:image-20220527163144-11.png]]
390 -
391 391  value receive in socket tool
392 392  
393 -
394 394  If user want to modify the TCP connection method. He can refer: [[https:~~/~~/github.com/dragino/dragino-packages/blob/lg02/haserl-ui/root/usr/bin/tcp_process.sh>>url:https://github.com/dragino/dragino-packages/blob/lg02/haserl-ui/root/usr/bin/tcp_process.sh]]. Same script is on /usr/bin of gateway.
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