Last modified by Xiaoling on 2023/04/20 18:14
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From version < 18.4 >
edited by Xiaoling
on 2022/07/22 11:59
To version < 14.8 >
edited by Xiaoling
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1 -**Table of Contents:**
1 +*
2 +** Table of** **Contents:
2 2  
3 3  {{toc/}}
4 4  
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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  
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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.
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99 99  )))
100 100  
101 101  
102 -
103 103  === 2.2.1 Decode Method ===
104 104  
105 105  
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139 139  Above scripts are store in /etc/lora/decoder/. User can put their scripts here and select it in the UI.
140 140  
141 141  
142 -
143 143  === 2.2.2 How to Decode My End Node ===
144 144  
145 145  
146 -**1.** Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
138 +1/ Configure the ABP keys for your end node in the gateway. enable ABP decode in Web UI
147 147  
148 -**2. **Don't choose MQTT service, use LoRaWAN.
140 +2/ Don't choose MQTT service, use LoRaWAN.
149 149  
150 -**3.** When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
142 +3/ When your end node send a message to the gateway, there will be a file store in /var/iot/channels. full path should be /var/iot/channels/END_NODE_DEV_ADDR
151 151  
152 -**4.** Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
144 +4/ Use the /etc/lora/decoder/Dragino_LHT65 as template to decode your payload. This script is written in Lua language. User can manually call this script when you see the data file in /var/iot/channels by running:
153 153  
154 154  {{{/etc/lora/decoder/Dragino_LHT65 END_NODE_DEV_ADDR
155 155  }}}
156 156  
157 -**5.** What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload.
149 +5/ What you see as output is the MQTT data device will upload, user's end node has different payload compare with LHT65, most properly this file will report with error. User need to modify to match the actual payload. Some notice:
158 158  
159 -
160 -(% style="color:red" %)
161 -**Some notice:**
162 -
163 163  * RSSI and SNR are added when gateway receive the packet, so there is always this field.
164 164  * If you rename the file, please make it executable.
165 165  * See this link for lua.bit module: [[http:~~/~~/luaforge.net/projects/bit/>>url:http://luaforge.net/projects/bit/]]
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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  
159 +
171 171  == 2.2 Downstream ==
172 172  
173 173  
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206 206  * **New version:** echo 018193F4,imme,hex,0101,20,1,SF12,923300000,2 > /var/iot/push/test
207 207  
208 208  
198 +
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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220 220  * RU864: 869.1Mhz, SF12 BW125
221 221  
222 222  
213 +
223 223  (% style="color:#037691" %)**Examples:**
224 224  
225 225  (% class="box" %)
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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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