<
From version < 16.2 >
edited by Xiaoling
on 2022/07/22 11:41
To version < 18.5 >
edited by Xiaoling
on 2022/07/22 11:59
>
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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 +
24 24  = 2. How it works =
25 25  
26 26  
... ... @@ -49,6 +49,7 @@
49 49  Input the ABP keys in LG308
50 50  
51 51  
55 +
52 52  == 2.1 Upstream ==
53 53  
54 54  
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77 77  * **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
78 78  * **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
79 79  
84 +
85 +
86 +
80 80  (% class="box" %)
81 81  (((
82 82  (% 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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87 87  000001c
88 88  )))
89 89  
97 +
90 90  (% class="box" %)
91 91  (((
92 92  (% 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.
... ... @@ -93,6 +93,7 @@
93 93  )))
94 94  
95 95  
104 +
96 96  === 2.2.1 Decode Method ===
97 97  
98 98  
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193 193  * **Frequency:** Transmit Frequency: example: 923300000
194 194  * **rxwindow:** transmit on Rx1Window or Rx2Window.
195 195  
205 +
196 196  (% style="color:blue" %)**Completely exmaple:**
197 197  
198 198  * **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
199 199  * **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
200 200  
211 +
201 201  (% style="color:#037691" %)**Downstream Frequency**
202 202  
203 203  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
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211 211  * IN865: 866.55Mhz, SF10 BW125
212 212  * RU864: 869.1Mhz, SF12 BW125
213 213  
225 +
214 214  (% style="color:#037691" %)**Examples:**
215 215  
216 216  (% class="box" %)
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217 217  (((
218 218  we can use echo command to create files in LG308 for downstream.
219 219  root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
220 -)))
221 221  
222 -(% class="box" %)
223 -(((
233 +
224 224  **1)** From logread -f of gateway, we can see it has been added as pedning.
225 225  lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
226 226  lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
227 227  lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
228 -)))
229 229  
230 -(% class="box" %)
231 -(((
239 +
232 232  **2)** When there is an upstrea from end node, this downstream will be sent and shows:
233 233  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
234 234  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
235 -)))
236 236  
237 -(% class="box" %)
238 -(((
244 +
239 239  **3)** and the end node will got:
240 240  [5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
241 241  [5764827]TX on freq 905300000 Hz at DR 0
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248 248  Rssi= -41
249 249  Receive data
250 250  (% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
251 -)))
252 252  
253 -(% class="box" %)
254 -(((
258 +
255 255  **4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
256 256  [5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
257 257  [5955879]TX on freq 904100000 Hz at DR 0
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267 267  )))
268 268  
269 269  
274 +
270 270  = 3. Example 1: Communicate with LT-22222-L =
271 271  
272 272  
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310 310  #  whether the Device 2 has been changed.//
311 311  )))
312 312  
318 +
313 313  **~1. Input keys**
314 314  
315 315  [[image:image-20220527162450-3.png]]
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319 319  
320 320  **2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
321 321  
328 +
322 322  **3. Choose Built-in server**
323 323  
324 324  [[image:image-20220527162518-4.png]]
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328 328  
329 329  **4. Run the script.**
330 330  
331 -[[image:image-20220527162552-5.png]]
338 +[[image:image-20220722115213-2.png]]
332 332  
333 333  Run the script
334 334  
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335 335  
336 336  **5. Output:**
337 337  
338 -[[image:image-20220527162619-6.png]]
345 +[[image:image-20220722115133-1.png]]
339 339  
340 340  Output from LPS8
341 341  
342 342  
350 +
343 343  = 4. Example 2: Communicate to TCP Server =
344 344  
345 345  
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