Changes for page PG1302 -- LoRaWAN Concentrator User Manual
Last modified by Kilight Cao on 2024/06/22 10:43
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... ... @@ -6,43 +6,48 @@ 6 6 7 7 8 8 9 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.gif]] 10 10 11 11 12 12 13 13 **PG1302 LoRaWAN Concentrator User Manual** 14 14 15 -[[image:1651796979665-130.png]] 16 16 17 -Document Version: 1.0.0 18 18 19 -Image Version: v1.0 20 20 21 21 18 +{{toc/}} 22 22 23 23 24 - {{toc numbered="true"/}}21 +---- 25 25 23 +(% class="wikigeneratedid" id="H" %) 24 +((( 25 + 26 +))) 26 26 28 +=== 1. Introduction === 27 27 30 +==== 1.1 What is PG1302 LoRaWAN Concentrator? ==== 28 28 29 -~1. Introduction 32 +((( 33 +The PG1302 is a multi-channel high performance transmitter/receiver designed to simultaneously receive several LoRa packets using random spreading factors on random channels. Its goal is to enable robust connection between a central wireless data concentrator and a massive amount of wireless end-points spread over a very wide range of distances. 34 +))) 30 30 31 - 1.1 What is PG1302 LoRaWAN Concentrator? 36 +((( 37 +The PG1302 is design to use with Raspberry Pi to build smart metering fixed networks and Internet of Things applications with up to 5000 nodes per km2 in moderately interfered environment. 38 +))) 32 32 33 33 ((( 34 - (((35 - The PG1302 is a multi-channel high performance transmitter/receiver designed to simultaneously receive several LoRa packets using random spreading factors on random channels. Its goal is to enable robust connection between a central wireless data concentrator and a massive amount of wireless end-points spread over a very wide range of distances.41 +PG1302 is fully compatible with RPi3/4, users can use the pre-build OS from Dragino to set up and easy to use the module by Web UI. Or install the raw lorawan driver in the exist OS. 42 +))) 36 36 37 - The PG1302 is design to use with Raspberry Pi to build smart metering fixed networks and Internet of Things applications with up to 5000 nodes per km2 in moderately interfered environment. 38 - 39 - PG1302 is fully compatible with RPi3/4, users can use the pre-build OS from Dragino to set up and easy to use the module by Web UI. Or install the raw lorawan driver in the exist OS. 40 - 44 +((( 45 +((( 41 41 42 42 ))) 43 43 ))) 44 44 45 -1.2 Features 50 +==== 1.2 Features ==== 46 46 47 47 * Base on Semtech SX1302 solution 48 48 * Support Raspberry Pi 3B/3B+/4 ... ... @@ -51,32 +51,34 @@ 51 51 * Mini-PCIe Interface 52 52 * Converter board to support Raspberry Pi 53 53 54 -1.3 General Interfaces 59 +==== 1.3 General Interfaces ==== 55 55 56 56 * SPI interface for LoRa 57 57 * Power Input: 5v, 1A 58 58 * 1 x I-PEX for LoRa 59 59 60 -1.4 Pin Mapping 65 +==== 1.4 Pin Mapping ==== 61 61 62 62 [[image:1651743282627-547.png||height="402" width="425"]] 63 63 64 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image006.gif]] 65 65 66 -1.5 LEDs 67 67 68 - TX: Blink when transmita packet71 +==== 1.5 LEDs ==== 69 69 70 - RX: Blink when receivea packet73 + TX: Blink when transmit a packet 71 71 72 - Config:AlwaysON75 + RX: Blink when receive a packet 73 73 74 - 1.6PowerConsumption77 + Config: Always ON 75 75 76 - TBD 77 77 78 -1. 7Applications80 +==== 1.6 Power Consumption ==== 79 79 82 + TBD 83 + 84 + 85 +==== 1.7 Applications ==== 86 + 80 80 * Smart Buildings & Home Automation 81 81 * Logistics and Supply Chain Management 82 82 * Smart Metering ... ... @@ -84,19 +84,20 @@ 84 84 * Smart Cities 85 85 * Smart Factory 86 86 87 -2. Example: Set up as LoRaWAN gateway. 94 +=== 2. Example: Set up as LoRaWAN gateway. === 88 88 89 - 2.1 System structure 96 +==== 2.1 System structure ==== 90 90 91 - . Set up method for other server are similar。98 + This example is an example to show how to set up the PG1302 + RPi as a LoRaWAN gateway to use with [[TheThingsNetwork>>url:http://www.thethingsnetwork.org/]](TTN) LoRaWAN server. 92 92 100 + Set up method for other server are similar. 101 + 93 93 (% style="text-align:center" %) 94 94 [[image:1651743698677-436.png||height="457" width="686"]] 95 95 96 96 97 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image008.gif]] 98 98 99 -2.2 Hardware Installation 107 +==== 2.2 Hardware Installation ==== 100 100 101 101 **~ Important Notice: **Please power the RPI with 5V,3A cable. 102 102 ... ... @@ -103,44 +103,56 @@ 103 103 (% style="text-align:center" %) 104 104 [[image:1651743803032-803.png]] 105 105 106 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.gif]] 107 107 108 -3. Install the software? 109 109 116 +=== 3. Install the software? === 117 + 110 110 There are two ways to install software in RPi4 to use PG1302. 111 111 112 112 * Flash SD card with Dragino pre-build image which support Web UI. 113 113 * Install lora packet forwarder in existing RPi OS. 114 114 115 -4. Flash with pre-build image 123 +=== 4. Flash with pre-build image === 116 116 117 - 4.1 Download the dragino image for RPI 125 +==== 4.1 Download the dragino image for RPI ==== 118 118 119 119 Download PG1302_for_Rpi4_64_with_webui from 120 120 121 121 [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]] 122 122 123 -4.2 Flash the image to SD card 124 124 125 - :132 +==== 4.2 Flash the image to SD card ==== 126 126 134 + Flash the image to SD card: 135 + 127 127 (% style="text-align:center" %) 128 128 [[image:1651744119133-233.png||height="373" width="621"]] 129 129 130 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.jpg]]Note: Download the flash tool following this link139 + Note: Download the flash tool following this link 131 131 132 132 [[https:~~/~~/www.balena.io/etcher/>>https://www.balena.io/etcher/]] 133 133 134 -4.3 Access the Linux console. 135 135 136 - Connect theRPI Ethernet port to your router, RPi will obtain an IP addressfrom your router. In therouter’s management portal, you should be able to find what IP address the routerhas assigned to the RPI. Youcanuse this IP toconnectthe WEB UI or SSH access of RPI.144 +==== 4.3 Access the Linux console ==== 137 137 138 - Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it. Below are screenshots 146 +((( 147 +((( 148 + Connect the RPI Ethernet port to your router, RPi will obtain an IP address from your router. In the router’s management portal, you should be 149 +))) 139 139 151 +((( 152 + able to find what IP address the router has assigned to the RPI. You can use this IP to connect the WEB UI or SSH access of RPI. 153 +))) 154 + 155 +((( 156 + Make sure your PC and the RPI is in the same network, then use a SSH tool (such as [[putty>>url:http://www.chiark.greenend.org.uk/~~sgtatham/putty/download.html]]) to access it. Below are screenshots 157 +))) 158 +))) 159 + 160 + 140 140 (% style="text-align:center" %) 141 141 [[image:1651744193675-591.png||height="450" width="466"]] 142 142 143 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.jpg]] 144 144 145 145 The account details for Web Login are: 146 146 ... ... @@ -159,18 +159,18 @@ 159 159 (% style="text-align:center" %) 160 160 [[image:1651744358515-107.png||height="366" width="581"]] 161 161 162 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.jpg]] 4.4 Access the WebUI of RPi4. 163 163 164 - .1Homepage183 +==== 4.4 Access the WebUI of RPi4. ==== 165 165 166 - Open a browseron the PC and type the RPI ipaddress185 +===== 4.4.1 Home page ===== 167 167 168 - [[http:~~/~~/IP_ADDRESS****>>url:http://192.168.1.xx/]](IftheIPisassignedbyuplinkrouter)187 + Open a browser on the PC and type the RPI ip address 169 169 189 + [[http:~~/~~/IP_ADDRESS** **>>url:http://192.168.1.xx/]] (If the IP is assigned by uplink router) 170 170 171 - 191 + You will see the login interface of RPI as shown below. 172 172 173 - 193 + The account details for Web Login are: 174 174 175 175 **~ User Name: root** 176 176 ... ... @@ -179,9 +179,8 @@ 179 179 (% style="text-align:center" %) 180 180 [[image:1651744457761-993.png||height="352" width="621"]] 181 181 182 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.jpg]] 183 183 184 -4.4.2 LoRa Page 203 +===== 4.4.2 LoRa Page ===== 185 185 186 186 This page shows the LoRa Radio Settings. There are a set of default frequency band according to LoRaWAN protocol, and user can customize the band* as well. 187 187 ... ... @@ -188,7 +188,6 @@ 188 188 (% style="text-align:center" %) 189 189 [[image:1651744554845-970.png||height="328" width="621"]] 190 190 191 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.jpg]] 192 192 193 193 Different PG1302 hardware version can support different frequency range: 194 194 ... ... @@ -206,71 +206,61 @@ 206 206 [[http:~~/~~/wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway>>url:http://wiki.dragino.com/index.php?title=Customized_Frequency_Band_for_Gateway]] 207 207 208 208 209 -4.4.3 LoRaWAN Page 227 +===== 4.4.3 LoRaWAN Page ===== 210 210 211 - 229 +====== 4.4.3.1 Semtech UDP ====== 212 212 213 213 214 214 (% style="text-align:center" %) 215 215 [[image:1651744767914-283.png||height="352" width="621"]] 216 216 235 + Note *: See this instruction for how to configure TTN. 217 217 218 -[[i mage:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.jpg]]237 + [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN||style="background-color: rgb(255, 255, 255);"]] 219 219 220 - Note *: See this instruction for how to configure TTN. 221 221 222 - [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_TTN>>url:https://wiki.dragino.com/index.php?title=Notes_for_TTN]]240 +====== 4.4.3.2 Basic Station ====== 223 223 224 - 225 -4.4.3.2 Basic Station 226 - 227 227 (% style="text-align:center" %) 228 228 [[image:1651744890629-683.png||height="380" width="621"]] 229 229 230 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.jpg]]245 + Note *: See this instruction for how to configure TTN. 231 231 232 - Note *: SeethisnstructionforhowtofigureTTN.247 + [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:https://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]] 233 233 234 - [[https:~~/~~/wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core>>url:https://wiki.dragino.com/index.php?title=Notes_for_AWS-IoT-Core]] 235 235 250 +===== 4.4.4 LogRead ===== 236 236 237 -4.4.4 Lo gRead252 +====== 4.4.4.1 LoRa Log ====== 238 238 239 - 4.4.4.1 LoRa Log 240 - 241 241 (% style="text-align:center" %) 242 242 [[image:1651744955955-452.png||height="571" width="621"]] 243 243 244 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.jpg]]257 + Show the frequency for LoRa Radio and traffics. 245 245 246 - Show the frequency for LoRa Radio and traffics. 247 247 260 +====== 4.4.4.2 System Log ====== 248 248 249 - 4.4.4.2SystemLog262 + Show system log. 250 250 251 - Show system log. 252 - 253 253 (% style="text-align:center" %) 254 254 [[image:1651745003470-264.png||height="477" width="621"]] 255 255 256 256 257 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.jpg]] 258 258 259 -4.4.4.3 Record Log 269 +====== 4.4.4.3 Record Log ====== 260 260 271 +**~ Record the system log.** 261 261 262 -**Record the system log.** 263 - 264 264 (% style="text-align:center" %) 265 265 [[image:1651745069814-662.png||height="144" width="621"]] 266 266 267 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.jpg]] 268 268 269 -5. Install stand alone LoRa Packet Forwarder. 277 +=== 5. Install stand alone LoRa Packet Forwarder. === 270 270 271 - 5.1 OS requirement 279 +==== 5.1 OS requirement ==== 272 272 273 - 281 + RPI in this example is RPI model 4B with fresh Raspbian OS install. 274 274 275 275 pi@raspberrypi:~~$ cat /etc/os-release 276 276 ... ... @@ -293,39 +293,36 @@ 293 293 BUG_REPORT_URL="http:~/~/www.raspbian.org/RaspbianBugs" 294 294 295 295 296 -5.2 Get Gateway ID in Raspberry and input this in TTN v3. 304 +==== 5.2 Get Gateway ID in Raspberry and input this in TTN v3. ==== 297 297 298 - 306 + In RPI, run below command to get a Gateway ID 299 299 300 - 308 + (% class="mark" %)ifconfig eth0 301 301 302 302 (% style="text-align:center" %) 303 303 [[image:1651745210205-512.png||height="130" width="621"]] 304 304 305 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.gif]] 306 306 307 - Make sure to select legacy packet forwarder.314 + We got the ether (eth0 MAC) address is b8:27:eb:49:62:bc). Add ffff at the end and remove “:” to get the gateway ID: b827ebxxxxbcffff. Input this to TTN v3. 308 308 316 + Make sure to select legacy packet forwarder. 317 + 309 309 (% style="text-align:center" %) 310 310 [[image:1651745267862-321.png||height="526" width="621"]] 311 311 312 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.jpg]] 313 313 314 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image038.jpg]] 315 315 316 316 (% style="text-align:center" %) 317 317 [[image:1651745306744-481.png||height="478" width="621"]] 318 318 326 +After set up, the status should show not connected as below: 327 + 319 319 (% style="text-align:center" %) 320 320 [[image:1651745366987-458.png||height="363" width="621"]] 321 321 322 -After set up, the status should show not connected as below: 323 323 324 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image040.jpg]]332 +===== 5.2.1 Download and install LoRaWAN packet forwarder ===== 325 325 326 -5.2.1 Download and install LoRaWAN packet forwarder 327 - 328 - 329 329 Enable SPI and I2C first: 330 330 331 331 a)SPI needs to be enabled on the Raspberry Pi ... ... @@ -342,20 +342,14 @@ 342 342 (% style="text-align:center" %) 343 343 [[image:image-20220505181135-2.png]] 344 344 345 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image044.jpg]] 346 346 347 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image046.jpg]] 348 348 349 349 350 - 351 - 352 - 353 353 In RPI , Fist: Enter root account: 354 354 355 355 (% style="text-align:center" %) 356 356 [[image:1651745583363-614.png]] 357 357 358 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image048.jpg]] 359 359 360 360 and then run: 361 361 ... ... @@ -368,7 +368,6 @@ 368 368 (% style="text-align:center" %) 369 369 [[image:1651745611629-818.png]] 370 370 371 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image050.gif]] 372 372 373 373 This will download the packet forwarder package from Dragino Server to RPI, and start install the package. 374 374 ... ... @@ -377,30 +377,27 @@ 377 377 (% style="text-align:center" %) 378 378 [[image:1651745657252-173.png||height="426" width="621"]] 379 379 380 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image052.jpg]] 381 381 382 -5. 5.2 Config Gateway ID, Frequency Band and Server address379 +===== 5.2.2 Config Gateway ID, Frequency Band and Server address ===== 383 383 384 - 381 + After installation, user can find the configuration file in** /etc/lora/ **Replace the gateway ID we got above to the **gateway_ID** in file **local_conf.json** 385 385 386 - 383 + The default LoRaWAN server points to localhost, user need to put the correct server address to the server_address field in file **local_conf.json**, like below. 387 387 388 388 (% style="text-align:center" %) 389 389 [[image:1651745709709-887.png||height="820" width="621"]] 390 390 391 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image054.jpg]] 392 392 393 - 389 + User can find the TTN v3 server address from: 394 394 395 - 391 + [[Server Addresses ~| The Things Stack for LoRaWAN (thethingsindustries.com)>>url:https://www.thethingsindustries.com/docs/getting-started/server-addresses/#deployments]] 396 396 397 397 398 - 394 + And the default frequency band is US915 in **global_conf.json** file. 399 399 400 400 (% style="text-align:center" %) 401 401 [[image:1651745838008-820.png||height="650" width="621"]] 402 402 403 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image056.jpg]] 404 404 405 405 * If user want to change to other frequency bands, User can copy the file from **/etc/lora/cfg-302 **and put it into** /etc/lora/global_conf.json.** 406 406 ... ... @@ -417,53 +417,50 @@ 417 417 (% style="text-align:center" %) 418 418 [[image:1651745984006-868.png]] 419 419 420 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image060.jpg]] 421 421 422 422 * If user wants to change to other LoRaWAN server, modify the **global_conf.json** file. 423 423 424 -5.2.3 Check result 418 +(% class="wikigeneratedid" %) 419 +((( 420 + 421 +))) 425 425 426 - Run belowcommandtorestartthe dragino_fwd:423 +===== 5.2.3 Check result ===== 427 427 428 - sudo systemctlstopdraginofwd425 + Run below command to restart the dragino_fwd: 429 429 430 - sudo systemctl st artdraginofwd427 + sudo systemctl stop draginofwd 431 431 432 - debugchecktheruingstatusoffwd:429 + sudo systemctl start draginofwd 433 433 434 - sudosystemctlstatusdraginofwd431 + debug check the ruing status of fwd: 435 435 433 + sudo systemctl status draginofwd 434 + 436 436 (% style="text-align:center" %) 437 437 [[image:1651746045057-414.png]] 438 438 439 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image062.jpg]] 440 440 441 - 439 + The dragino_fwd will start with the new gateway ID and TTN v3 should show the connection ok: 442 442 443 443 (% style="text-align:center" %) 444 444 [[image:1651746078253-168.png||height="372" width="621"]] 445 445 446 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image064.jpg]] 447 447 445 + We can check dragino_fwd running states in RPi by running: 448 448 449 - We canheckdragino_fwdrunning states in RPi by running:447 + //**sudo journalctl -u draginofwd -f**// 450 450 451 - sudo journalctl -u draginofwd -f 452 - 453 453 (% style="text-align:center" %) 454 454 [[image:1651746111963-838.png]] 455 455 456 - [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image066.gif]]452 + If there are LoRaWAN nodes transmits nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data 457 457 458 - 459 - If there are LoRaWAN nodes transmits nearby, we can see the traffic in TTN v3 –> Gateway ~-~-> Live data 460 - 461 461 (% style="text-align:center" %) 462 462 [[image:1651746139304-966.png||height="326" width="621"]] 463 463 464 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image068.jpg]] 465 465 466 -5.2.4 Commands to handle service 458 +===== 5.2.4 Commands to handle service ===== 467 467 468 468 * **Stop** dragino_fwd service: sudo systemctl stop draginofwd 469 469 * **Disable** dragino_fwd auto run after boot: sudo systemctl disable draginofwd ... ... @@ -471,24 +471,24 @@ 471 471 * **Auto run** dragino_fwd after boot: sudo systemctl enable draginofwd 472 472 * **Show status** of dragino_fwd: sudo systemctl status draginofwd 473 473 474 -6. Order Info 466 +=== 6. Order Info === 475 475 476 - Part Number: 468 + Part Number: **PG1302-XX** Or Part Number: **PG1302-PI-XX **(Include RPi converter board for RPI 3/4) 477 477 478 -**~ XX:** 470 +**~ XX:** 479 479 480 480 * 868 (For Bands: EU868,IN865) 481 481 * 915 (For Bands: US915,AU915,AS923,KR920) 482 482 * 470 (For Band: CN470) 483 483 484 -7. Packing Info 476 +=== 7. Packing Info === 485 485 486 -**~ PG1302 Package Includes**: 478 +**~ PG1302 Package Includes**: 487 487 488 488 * PG1302 x 1 489 489 * LoRa Antenna x 1 490 490 491 -**~ PG1302-PI Package Includes**: 483 +**~ PG1302-PI Package Includes**: 492 492 493 493 * PG1302 x 1 494 494 * LoRa Antenna x 1 ... ... @@ -495,7 +495,7 @@ 495 495 * RPi3/4 converter PCB 496 496 * Screws to hole converter PCB on RPI. 497 497 498 -8. Reference 490 +=== 8. Reference === 499 499 500 500 * Datasheet, User Manual & Software Download: 501 501 ... ... @@ -502,12 +502,9 @@ 502 502 [[https:~~/~~/www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0>>url:https://www.dropbox.com/sh/f6nbldh1qbspya5/AACgL6pDkwdBQO1BQqq_Nubwa?dl=0]] 503 503 504 504 505 -9. Support 497 +=== 9. Support === 506 506 507 507 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 508 508 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to 509 509 510 510 [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]] 511 - 512 - 513 -