Last modified by Xiaoling on 2023/04/20 18:14
<
From version < 18.4 >
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 26  = 2. How it works =
27 27  
28 28  
... ... @@ -79,9 +79,6 @@
79 79  * **SNR**: 3030 3030 3030 3546 = 0x0000 005F = 95, need to divide 10 so SNR is 9.5
80 80  * **Payload**: 0xcc0c 0b63 0266 017f ff7f ff00
81 81  
82 -
83 -
84 -
85 85  (% class="box" %)
86 86  (((
87 87  (% 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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92 92  000001c
93 93  )))
94 94  
95 -
96 96  (% class="box" %)
97 97  (((
98 98  (% 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.
... ... @@ -99,7 +99,6 @@
99 99  )))
100 100  
101 101  
102 -
103 103  === 2.2.1 Decode Method ===
104 104  
105 105  
... ... @@ -168,6 +168,7 @@
168 168  * User can use other language ,not limited to Lua, just make sure the return is what you want to send.
169 169  
170 170  
164 +
171 171  == 2.2 Downstream ==
172 172  
173 173  
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199 199  * **Frequency:** Transmit Frequency: example: 923300000
200 200  * **rxwindow:** transmit on Rx1Window or Rx2Window.
201 201  
202 -
203 203  (% style="color:blue" %)**Completely exmaple:**
204 204  
205 205  * **Old version:** echo 018193F4,imme,hex,0101 > /var/iot/push/test
206 206  * **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
207 207  
208 -
209 209  (% style="color:#037691" %)**Downstream Frequency**
210 210  
211 211  The LG308 will use the RX2 window info to send the downstream payload, use the default LoRaWAN settings, as below:
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219 219  * IN865: 866.55Mhz, SF10 BW125
220 220  * RU864: 869.1Mhz, SF12 BW125
221 221  
222 -
223 223  (% style="color:#037691" %)**Examples:**
224 224  
225 225  (% class="box" %)
... ... @@ -226,19 +226,25 @@
226 226  (((
227 227  we can use echo command to create files in LG308 for downstream.
228 228  root@dragino-1d25dc:~~# echo 2602111D,time,hex,12345678 > /var/iot/push/test
220 +)))
229 229  
230 -
222 +(% class="box" %)
223 +(((
231 231  **1)** From logread -f of gateway, we can see it has been added as pedning.
232 232  lora_pkt_fwd[4286]: INFO~~ [DNLK]Looking file : test
233 233  lora_pkt_fwd[4286]: INFO~~ [DNLK]devaddr:2602111D, txmode:time, pdfm:hex, size:4, payload1:4Vx,payload_hex:77C1BB90
234 234  lora_pkt_fwd[4286]: INFO~~ [DNLK] DNLINK PENDING!(1 elems).
228 +)))
235 235  
236 -
230 +(% class="box" %)
231 +(((
237 237  **2)** When there is an upstrea from end node, this downstream will be sent and shows:
238 238  lora_pkt_fwd[4286]: INFO: tx_start_delay=1497 (1497.000000) - (1497, bw_delay=0.000000, notch_delay=0.000000)
239 239  lora_pkt_fwd[4286]: [LGWSEND]lgw_send done: count_us=3537314420, freq=923300000, size=17
235 +)))
240 240  
241 -
237 +(% class="box" %)
238 +(((
242 242  **3)** and the end node will got:
243 243  [5764825]~*~*~*~** UpLinkCounter= 98 ~*~*~*~**
244 244  [5764827]TX on freq 905300000 Hz at DR 0
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251 251  Rssi= -41
252 252  Receive data
253 253  (% style="color:#037691" %)**2:12345678**  (%%) ~-~-> Hex
251 +)))
254 254  
255 -
253 +(% class="box" %)
254 +(((
256 256  **4) **If we use the command "echo 2602111D,time,txt,12345678 > /var/iot/push/test" for downstream, the end node will got:
257 257  [5955877]~*~*~*~** UpLinkCounter= 102 ~*~*~*~**
258 258  [5955879]TX on freq 904100000 Hz at DR 0
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311 311  #  whether the Device 2 has been changed.//
312 312  )))
313 313  
314 -
315 315  **~1. Input keys**
316 316  
317 317  [[image:image-20220527162450-3.png]]
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321 321  
322 322  **2. Make sure the LPS8 and LT use the same frequency bands, choose EU868 in this test.**
323 323  
324 -
325 325  **3. Choose Built-in server**
326 326  
327 327  [[image:image-20220527162518-4.png]]
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331 331  
332 332  **4. Run the script.**
333 333  
334 -[[image:image-20220722115213-2.png]]
331 +[[image:image-20220527162552-5.png]]
335 335  
336 336  Run the script
337 337  
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338 338  
339 339  **5. Output:**
340 340  
341 -[[image:image-20220722115133-1.png]]
338 +[[image:image-20220527162619-6.png]]
342 342  
343 343  Output from LPS8
344 344  
image-20220722115133-1.png
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