Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 18.5 >
edited by Xiaoling
on 2022/07/22 11:59
To version < 16.2 >
edited by Xiaoling
on 2022/07/22 11:41
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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 23  
24 -
25 -
26 -
27 27  = 2. How it works =
28 28  
29 29  
... ... @@ -52,7 +52,6 @@
52 52  Input the ABP keys in LG308
53 53  
54 54  
55 -
56 56  == 2.1 Upstream ==
57 57  
58 58  
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81 81  * **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
82 82  * **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
83 83  
84 -
85 -
86 -
87 87  (% class="box" %)
88 88  (((
89 89  (% 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:
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94 94  000001c
95 95  )))
96 96  
97 -
98 98  (% class="box" %)
99 99  (((
100 100  (% 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.
... ... @@ -101,7 +101,6 @@
101 101  )))
102 102  
103 103  
104 -
105 105  === 2.2.1 Decode Method ===
106 106  
107 107  
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202 202  * **Frequency:** Transmit Frequency: example: 923300000
203 203  * **rxwindow:** transmit on Rx1Window or Rx2Window.
204 204  
205 -
206 206  (% style="color:blue" %)**Completely exmaple:**
207 207  
208 208  * **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
209 209  * **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
210 210  
211 -
212 212  (% style="color:#037691" %)**Downstream Frequency**
213 213  
214 214  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
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222 222  * IN865: 866.55Mhz, SF10 BW125
223 223  * RU864: 869.1Mhz, SF12 BW125
224 224  
225 -
226 226  (% style="color:#037691" %)**Examples:**
227 227  
228 228  (% class="box" %)
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229 229  (((
230 230  we can use echo command to create files in LG308 for downstream.
231 231  root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
220 +)))
232 232  
233 -
222 +(% class="box" %)
223 +(((
234 234  **1)** From logread -f of gateway, we can see it has been added as pedning.
235 235  lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
236 236  lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
237 237  lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
228 +)))
238 238  
239 -
230 +(% class="box" %)
231 +(((
240 240  **2)** When there is an upstrea from end node, this downstream will be sent and shows:
241 241  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
242 242  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
235 +)))
243 243  
244 -
237 +(% class="box" %)
238 +(((
245 245  **3)** and the end node will got:
246 246  [5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
247 247  [5764827]TX on freq 905300000 Hz at DR 0
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254 254  Rssi= -41
255 255  Receive data
256 256  (% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
251 +)))
257 257  
258 -
253 +(% class="box" %)
254 +(((
259 259  **4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
260 260  [5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
261 261  [5955879]TX on freq 904100000 Hz at DR 0
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271 271  )))
272 272  
273 273  
274 -
275 275  = 3. Example 1: Communicate with LT-22222-L =
276 276  
277 277  
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315 315  #  whether the Device 2 has been changed.//
316 316  )))
317 317  
318 -
319 319  **~1. Input keys**
320 320  
321 321  [[image:image-20220527162450-3.png]]
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325 325  
326 326  **2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
327 327  
328 -
329 329  **3. Choose Built-in server**
330 330  
331 331  [[image:image-20220527162518-4.png]]
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335 335  
336 336  **4. Run the script.**
337 337  
338 -[[image:image-20220722115213-2.png]]
331 +[[image:image-20220527162552-5.png]]
339 339  
340 340  Run the script
341 341  
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342 342  
343 343  **5. Output:**
344 344  
345 -[[image:image-20220722115133-1.png]]
338 +[[image:image-20220527162619-6.png]]
346 346  
347 347  Output from LPS8
348 348  
349 349  
350 -
351 351  = 4. Example 2: Communicate to TCP Server =
352 352  
353 353  
image-20220722115133-1.png
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